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<title cf:type="text"><![CDATA[Editorial Department of Guangdong Agricultural Sciences -->Invited Review]]></title>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Identification and Characterization of miR164-NAC Regulatory Modules in Banana]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202309001&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】This study aims to understand the roles of MIR164, NAC gene families and miR164-NAC regulatory modules in banana ripening and response to low temperature stress, so as to provide a theoretical basis for banana variety improvement and molecular breeding.【Method】‘Brazil banana’ was used as test material. Through high-throughput sequencing and bioinformatics analysis using miRBase, NCBI database and Clustal, TBtools, MCScanX and iTOL softwares, miR164 and NAC family members in banana were characterized, including their chromosomal location, structure, physical/ chemical properties, phylogenetic relationships, etc. Multiple miR164-NAC regulatory modules in bananas were identified through degradome sequencing and experimental validation combining transcriptome data. Next, the expression patterns of miR164-NAC regulatory modules during ripening and under cold stress were analyzed by small RNA northern blot and qRT-PCR.【Result】A total of six miR164 family members were identified in banana, of which four were located within the coding genes and two in the intergenic region. Phylogenetic analysis showed that several banana MIR164 precursors with high abundance were clustered together with papaya, suggesting that the origin of banana MIR164 gene family was closer to dicotyledonous plants. The banana genome encodes a total of 222 NAC members, unevenly distributed across all 11 chromosomes. A total of 134 homologous gene pairs were identified in these banana NACs, including 4 tandem repeats and 130 segment-replicating repeats, indicating that the main driving force of banana NAC genes evolution came from segment-replicating events. Comparative phylogenetic analysis of all NAC proteins in banana, Arabidopsis thaliana and Oryza sativa divided this family into 23 subgroups, and transcriptome data revealed extensive redundancy and expression specificity of banana NAC genes. Physicochemical analysis showed that almost all banana NAC proteins were hydrophilic, and less than 15% were stable proteins. The miR164-NAC176/165 regulatory module in banana was verified, and the accumulation of miR164 in banana was induced by ethylene and gradually increased with fruit ripening, while the expression of MaNAC176/165 negatively regulated by miR164 in this module was gradually decreased during fruit ripening. Under the cold stress, miR164 was also obviously induced, resulting in the downregulation of its targets MaNAC176 and MaNAC165.【Conclusion】This study suggested that MaNAC176 and MaNAC165 may be transcriptional repressors of banana fruit ripening, while miR164 promotes ripening by negatively regulating MANAC176/165. This module may also be a key regulatory pathway of banana chilling injury. This study identified key miR164-NAC candidate modules in banana fruit ripening and cold stress response, which laid a foundation for subsequent gene cloning and functional analysis.]]></description>
<pubDate>2023/11/7 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[ZHU Hong1, ZENG Jun1,2, KONG Xiangjin1,2, PENG Kuan1,2, ZHU Xiaoyang3, WEN Lingrong1, QU Hongxia1, JIANG Yueming1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHU Hong1, ZENG Jun1,2, KONG Xiangjin1,2, PENG Kuan1,2, ZHU Xiaoyang3, WEN Lingrong1, QU Hongxia1, JIANG Yueming1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202309001&flag=1]]></guid><cfi:id>11</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Construction of Fingerprint Map of 12 Varieties Based on SSR Markers and Identification of Hybrid F1 Progenies in Gerbera hybrida]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202309002&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Based on the method of SSR molecular markers, this study conducted phylogenetic analysis on 12 germplasms and identified true and false hybrids from F1 hybrid progenies of some germplasms in Gerbera hybrida, in order to offer a technological support for the evaluation and innovative utilization of germplasm resources in G. hybrida. 【Method】 Twelve Gerbera hybrida germplasm resources were collected and their genomic DNA was extracted. PCR amplification was performed using 50 pairs of SSR primers. Cluster analysis and fingerprint construction were conducted by detecting the results of related polymorphisms, as well as identification of hybrid F1 offspring of some varieties.【Result】A total of 74 polymorphic alleles were amplified by 18 pairs of primers in 12 varieties of G. hybrida, with an average of 4.1 polymorphic alleles amplified by each pair of primers. A phylogenetic tree of 12 germplasm resources was constructed using 74 alleles in G. hybrida. UPGMA clustering analysis results showed that when the genetic coefficient was 0.75, the tested 12 germplasm resources could be divided into 5 groups, with Group I including ‘Yunnanhong’, ‘Da088’, and ‘Qingren’. Group II including ‘Fenjiaren’, ‘Fenqiu’, ‘Zhenai’, and ‘Fuwa’. Group III including ‘Xiuse’, ‘Shunv’, and ‘Huangqiu’, both Group IV and Group V containing only one variety, namely ‘Zishuijing’ and ‘Shenzhen 5’, respectively. Four pairs of primers were screened, including GHSSR-1, GHSSR-18, GHSSR-20, and GHSSR-21, which can completely distinguish the 12 germplasms with each other. Among them, the last three pairs of primers identified lines with parental specific heterotopies as Gh-5, Gh-4, and Gh-1, respectively. The identification rate of a single pair of primers was 33%. All three tested individual plants are true hybrids, with a true hybrid rate of 100%.【Conclusion】Twelve fingerprint maps of G.hybrida varieties were successfully constructed. At the same time, 3 hybrid F1 offspring seedlings were identified as true hybrids, providing dependable SSR marker primers for the evaluation and innovative utilization of resources in G. hybrida.]]></description>
<pubDate>2023/11/7 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[LIU Xiaofei1,2, YU Bo1, REN Guiping3, YU Chaoran2,4, LIU Chong2,5, SUN Yingbo1, ZHONG Ronghui1, FENG Enyou2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LIU Xiaofei1,2, YU Bo1, REN Guiping3, YU Chaoran2,4, LIU Chong2,5, SUN Yingbo1, ZHONG Ronghui1, FENG Enyou2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202309002&flag=1]]></guid><cfi:id>10</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress on Biological Roles and Mechanisms of Outer Membrane Vesicles Derived From Gram-negative Pathogenic Bacteria]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202307001&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Outer membrane vesicles (OMV) are nanoplike particles secreted by Gram-negative(G-) bacteria. OMV are spherical, bilayer membrane-like structures, mostly 20 to 250 nm in diameter. They are mainly composed of the outer membrane components of bacteria. OMV secreted by pathogens include various components associated with pathogenesis, such as non-protein antigenic lipopolysaccharides, lipids, protein adhesins, invasins, toxins and other pathogenic factors. Pathogenic OMV also contain bacterial DNA, RNA, sRNA and plasmid nucleic acids from bacteria. OMV have been termed a new secretion system of Gram-negative bacteria, which is closely related to a series of functions such as pathogenicity, storage and transmission of drug resistance genes, interbacterial and bacteria-host communication crosstalk. Secretion of pathogenic OMV is associated with the stress response. OMV are considered carriers of virulence factors, drug resistance genes, plasmids, antigen molecules and other bioactive substances and delivered to the host cells. They can lead to the occurrence of epidemics directly or exacerbate the disease. In terms of mechanism, OMV transport toxins to host cells through dynamic-dependent endocytosis, mediate horizontal transfer of drug resistance genes, reduce phage invasion by increasing secretion or protect pathogens of source bacteria or surrounding bacteria from membrane active substances, affect and induce immune responses of cells related to bacterial infection sites or even distant tissues and so on. It can further activate inflammatory response pathways, mediate host cell death and metabolic remodeling. In virtue of the series of biological functions in bacterial pathogenesis, drug resistance, the host physiological barrier (intestinal mucosa barrier, intestinal vessel barrier and blood-brain barrier) damage, niche imbalance of OMV and so forth, it’s of great significance to understand their related biological roles and potential molecular mechanism for developing newly prevention and control strategies . In this review, we focus on the role of OMV and the molecular mechanisms, and discuss their applications.]]></description>
<pubDate>2023/9/20 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[LI Chunling1, KE Haiyi2, XU Minsheng1, BIAN Zhibiao1, ZHANG Kunli1, LI Yan1, ZHAI Shaolun1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LI Chunling1, KE Haiyi2, XU Minsheng1, BIAN Zhibiao1, ZHANG Kunli1, LI Yan1, ZHAI Shaolun1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202307001&flag=1]]></guid><cfi:id>9</cfi:id><cfi:read>true</cfi:read></item>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress of Long Non-coding RNA in Horticultural Plants]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202307002&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Long non-coding RNA (lncRNA) is a kind of RNA widely present in plant genome, which plays a crucial role in various regulatory processes in plants. LncRNA refers to RNA with a nucleotide length greater than 200 nt and has no or almost no protein coding ability. Most plant lncRNAs are transcribed by RNA polymerase Ⅱ and are mainly produced from gene structural variation, gene replication, chromosome recombination, or transposon insertion. There are many types of lncRNA in plants, which can be divided based on their relative positions and forms of functions. The structure of lncRNA is similar to mRNA, which has the cap and poly (A) structure and foldability, but its transcript is longer than mRNA, and has low transcriptional abundance, extremely high expression specificity, and low conservation. The functional mechanisms of lncRNA in horticultural plants are complex, which can play roles in pre-/post- transcription, pre-/post- translation, and epigenetics. It mainly plays a role through cis-/trans-regulating gene transcription, acting as a precursor or endogenous target mimic of miRNA, interacting with transcription factors, modulating mRNA alternative splicing, modulating protein localization, and participating in chromatin remodeling. Horticultural plants are closely related to human life, and its study is an important part of agricultural development. With the continuous development of sequencing technology, research on plant lncRNA has also expanded from model plants such as Arabidopsis to horticultural plants. Different types and quantities of lncRNAs have been identified in horticultural plants and found to be involved in seed germination, reproductive growth, as well as in response to biotic stresses such as diseases and pests, and abiotic stresses such as high temperature, cold, drought, and salt. In this paper, the research progress of lncRNA in horticultural plants in recent years was reviewed, and the generation, characteristics, classification and mechanism of lncRNA were summarized, as well as the identified lncRNAs and their main biological functions in horticultural plants. It also puts forward prospects for future research directions of lncRNA, in order to provide reference and foundation for further research on lncRNA in horticultural plants]]></description>
<pubDate>2023/9/20 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[ZHANG Hongna, WANG Can]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHANG Hongna, WANG Can</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202307002&flag=1]]></guid><cfi:id>8</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progresses on the Genomics of Cucurbitaceae Crops]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304001&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Cucurbitaceae family includes many common vegetables and fruits, and plays an important role in agricultural production. High quality genome is essential for gene mining of agronomically important traits, evaluation of germplasm resources and construction of molecular breeding system. With the rapid development of sequencing technology, Sanger, Roche 454, Illumina and PacBio sequencing platform had been established, which resulted in the continuous reduction of sequencing costs and many genomes of different species have been reported. Cucumber is a model crop for Cucurbitaceae 
crop research, and is the first vegetable crop to complete the genome sequencing. Subsequently, more and more Cucurbitaceae crops including watermelon, melon, pumpkin and winter gourd have completed the whole genome De Novo sequencing, which significantly improved research level of genomics, systematic evolution and molecular biology of Cucurbitaceae family. In this review, we summarized the progresses made on the De Novo sequencing of main Cucurbitaceae crops, and their application in understanding the origin and evolution of the family and mining genes controlling agronomically important traits. Moreover, we also prospected the construction of Telomerase-to-Telomere (T2T) genome and pan-genome of Cucurbitaceae family.]]></description>
<pubDate>2023/6/8 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[JIANG Biao1, YAN Jinqiang1, YAN Shijuan2, XIE Dasen1, LIU Wenrui1, WANG Min1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>JIANG Biao1, YAN Jinqiang1, YAN Shijuan2, XIE Dasen1, LIU Wenrui1, WANG Min1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304001&flag=1]]></guid><cfi:id>7</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress of Banana Resistant Starch]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202311001&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Resistant starch (RS) is defined as the total amount of starch and the products of starch degradation that resists digestion and absorption in the small intestine of the healthy human body within 120 min, but it can be fermented in the large intestine. It provides many health benefits for humans, such as preventing diabetes, improving the intestinal microenvironment, reducing blood sugar, blood fat and weight, thus sparking great interest of scholars in multiple fields such as agriculture, food and medicine. RS has become one of the hot topics in crop nutrition quality improvement and healthy food research. According to the different chemical structures, sources and properties, RS can be divided into five types: RS1, RS2, RS3, RS4 and RS5. Banana is the world’s largest traded fruit, the fourth largest food crop, and a source of carbohydrates for two billion people worldwide. Banana RS belongs to the RS2 type and is the only RS identified as dietary fiber by the US Food and Drug Administration. Banana fruit is rich in RS, with a content of over 40% in unripen fruit, which is much higher than that in rice (< 3.0%), wheat (< 3.5%), high amylose corn (< 22.4%) and other crops. Banana is a direct source of functional food. Since British physiologist Englyst first discovered and named RS in 1982, significant progresses have been made in bananas in terms of the morphological characteristics of RS granules, effects of processing conditions and complexation reaction on the morphological characteristics of RS granules, the relationship between accumulation and degradation characteristics and fruit quality, preparation methods and applications in food processing. However, compared to cereal crops like rice, studies on the core genes involved in RS synthesis, regulation mechanisms of transcription factors for the core genes expression influencing RS synthesis, functional identification, and molecular breeding in banana are significantly lagging behind. The previous work on the cytology, physiology and biochemistry, food processing, molecular biology of banana RS since 1982 is reviewed, and prospect for future work is put forward.]]></description>
<pubDate>2024/1/9 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[MIAO Hongxia1,2, SUN Peiguang1,2, JIN Zhiqiang1,2, JIA Caihong1,2, ZHANG Jianbin1,2, LIU Juhua1,2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>MIAO Hongxia1,2, SUN Peiguang1,2, JIN Zhiqiang1,2, JIA Caihong1,2, ZHANG Jianbin1,2, LIU Juhua1,2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202311001&flag=1]]></guid><cfi:id>6</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress in the Effects of Epidermal Tissue on Postharvest Fruit Water Loss]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202310001&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Water is the most abundant component in fruits and vegetables, and it plays a significant role in maintaining the sensory quality and normal physiological metabolic in fruits. However, the tissues of postharvest fruits are cut off the connection from the parent plant, which result in a reduction of fruit moisture due to evaporation and respiration. This leads to a series of issues, including weight loss, wrinkling, browning, softening, susceptibility to pathogen infection, and accelerating aging. These problems significantly reduce the shelf life and disease resistance of postharvest fruits, directly impacting their commercial and economic value. Many factors such as before, during and after harvesting can influence the water loss of fruit, however, as a crucial barrier in controlling water loss, the fruit epidermal tissue plays a key role in maintaining fruit moisture. In this article, it takes the epidermal tissue of fruit as a starting point and focuses on three aspects: The structure of the epidermal tissue (including epidermal cells, cuticle layer, natural openings, and trichomes), the chemical composition of the epidermal tissue (including waxes, cutin, polysaccharides, and phenolic compounds), and the molecular biology mechanisms that control fruit water loss through the epidermal tissue (including wax-related genes and wax metabolism regulation), and the impacts of the epidermal tissue on postharvest water loss in fruits are reviewed. Moreover, it summarizes the current challenges in this research field, with the hope that these findings can provide valuable references and insights for further exploration of the mechanisms in which epidermal tissue contributes to maintaining fruit quality after harvest and seeking methods to control fruit water loss.]]></description>
<pubDate>2023/11/15 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[PAN Yonggui]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>PAN Yonggui</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202310001&flag=1]]></guid><cfi:id>5</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress on Molecular Breeding of Resistance to Disease in Pepper]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202404001&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Pepper originated in South America and was introduced to China in the 16th century. With high nutritional value, pepper has an important role in health care, beauty, food, medicine, violence and other industries. It becomes one of the most important vegetable crops in China. With the gradual increase of cultivation area pepper ranks the top among vegetable crops in China in this aspect. In the process of pepper production, it inevitably suffers from various diseases, causing great losses to production. It is the most economical and effective measure to control diseases through selecting disease-resistant varieties, although the chemical control methods and agricultural control measures can reduce the harm to a certain extent. With the development of molecular biology, the combination of molecular breeding and conventional breeding methods for disease resistance is a direction of future breakthroughs. In recent years, great progress has been made in the molecular breeding of 
pepper disease resistance, especially, the molecular mechanism of disease resistance. Molecular breeding mainly includes two parts: one is marker-assisted breeding, and the other is creating disease-resistant breeding materials by means of genetic engineering. In marker-assisted breeding, molecular markers must be found first. Molecular markers are divided into gene markers, markers obtained by linkage analysis in segregation populations, and markers gotten by association analysis through sequencing of a large number of materials. The premise of genetic engineering is to isolate and obtain disease resistance genes, and then introduce them into pepper breeding materials with good economic traits, or mutate negatively regulated genes through gene editing technology or gene silencing technology to improve disease resistance of plants. In this paper, molecular markers and marker-assisted selection, molecular mechanism of disease resistance and disease-resistant germplasm (resistance to virus, bacterial wilt and Phytophthora capsici) obtained by genetic engineering technology are comprehensively introduced, and the development trend and research focus in the future are prospected.]]></description>
<pubDate>2024/6/7 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[LEI Jianjun1,2, CHEN Changming2, ZHU Zhangsheng2, ZHENG Jie1, WU Hao1, XIAO Yanhui1, JIANG Yuanyuan1, YUAN Yuan1, CHEN Guoju2, CAO Bihao2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LEI Jianjun1,2, CHEN Changming2, ZHU Zhangsheng2, ZHENG Jie1, WU Hao1, XIAO Yanhui1, JIANG Yuanyuan1, YUAN Yuan1, CHEN Guoju2, CAO Bihao2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202404001&flag=1]]></guid><cfi:id>4</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Advances in Transcriptional Regulation of Insect Chitin Synthase Genes]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202404002&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Chitin is widely found in fungi, insects and crustaceans, but not in plants and vertebrates. It is an important component of insect exoskeleton, trachea and midgut peritrophic membrane. During the molting process of insects, chitin-rich structures need to be reconstructed to complete the expansion of the insect body, and the synthesis of chitin needs to be strictly controlled. Therefore, chitin biosynthesis has been an important target for pest control. With the rapid development of pesticide resistance in insect populations, pest prevention and control is facing new challenges, and it is necessary to constantly search for new pest control targets to develop new insecticides and achieve effective pest control. Chitin synthase (CHS) is a key enzyme in insect chitin synthesis pathway and plays an important role in chitin synthesis. There are two kinds of chitin synthases, CHS1 and CHS2. CHS1 is expressed in the exoskeleton and trachea of insects and catalyzes chitin synthesis, while CHS2 is mainly responsible for chitin synthesis in the midgut peritrophic membrane. Interference of CHS1 can lead to defects in insect epidermis and abnormal development of dorsal trunk of tracheae, while the inhibition of CHS2 often results in shorter midgut and weight loss. Down-regulation of both CHS genes in insects could cause a large number of deaths. Insects have complex transcriptional regulation mechanisms of CHS to ensure their normal growth and development, and respond to external stimuli. Based on domestic and foreign studies, we reviewed the research progress in transcriptional regulation of insect CHS, including the effects of insect hormones, transcription factors, epidermal injury and feeding stimulation, genes and substances related to chitin metabolism, microRNA, and inhibitors of chitin synthesis on CHS mRNA levels in insects, with an aim to provide a theoretical basis for the development and utilization of green pesticides targeting CHS for pest control in the future.]]></description>
<pubDate>2024/6/7 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[YUE Xiangzhao，WU Kai，HE Liyun]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YUE Xiangzhao，WU Kai，HE Liyun</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202404002&flag=1]]></guid><cfi:id>3</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Advances in the Application of Plant Chromosome Rearrangement in Crop Genetic Improvement]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202403001&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Chromosome rearrangement is a mechanism that can lead to the loss, duplication, translocation and inversion of DNA segments, thereby altering the genomic structure and providing possibilities for creating new variable traits. Accurate identification of plant chromosome rearrangement events contributes to a deeper understanding of the structure and function of the plant genomes as well as their roles in plant evolution and crop breeding. This review delves into the fundamental concepts of plant chromosome rearrangement, presenting both naturally occurring and artificially induced techniques. It elucidates the cytological, molecular genetic and high-throughput sequencing identification methods for plant chromosome rearrangement. We systematically summarize the application of plant chromosome rearrangement techniques in crop genetic breeding, emphasizing the superiority and practical implementation of chromosome rearrangement in increasing genetic diversity, improving essential traits and enhancing environmental adaptability of crops. However, the occurrence probability of chromosome rearrangement is relatively low currently, posing technical challenges that necessitate more precise tools and strategies for the accurate positioning and rearrangement of chromosomal fragments. By comprehensively understanding chromosome rearrangement and its related technologies, researchers and breeders can better leverage the plant genome, providing innovative solutions for global food security and sustainable environmental development. These researches not only open new approach for a deeper understanding of the plant genome but also lay a solid foundation for future innovations in crop breeding. Through tapping into the diversity and plasticity of the plant genome, chromosome rearrangement technology holds the potential to offer more possibilities for cultivating high-yielding, superior-quality and resistant crop varieties, addressing the increasingly critical issues of global food security and climate adaptability.]]></description>
<pubDate>2024/4/30 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[XUE Jiao, ZHU Qingfeng, CHEN Pei, FENG Yanzhao, YU Yang]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XUE Jiao, ZHU Qingfeng, CHEN Pei, FENG Yanzhao, YU Yang</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202403001&flag=1]]></guid><cfi:id>2</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress on Phenotype Formation of Diluted Coat Color in Agricultural Economic Animals]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402001&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Coat color is considered to be one of the earliest selected traits during domestication of domestic animals, and the favorable selection for this trait results in the rich diversity of coat color of domestic animals. The coat color phenotype of domestic animals is determined by the relative amounts of eumelanins (black/brown) and pheomelanins (yellow/red) in melanocytes. When the synthesis of eumelanin or pheomelanins is diluted or when the synthesis of both pigments is diluted, a variety of diluted coat color phenotypes will be formed. In order to further understand the genetic mechanism of coat color variation in domestic animals, many scholars have conducted a large number of studies on the genetics of coat color to uncover genes and causal mutations associated with coat color.Currently, more than 300 gene loci and 150 genes related to coat color have been identified. Diluted coat color phenotype is an important research direction in the field of genetic research of animal coat color, and some progress has been made in its genetic research. Multiple causal genes have been reported to cause coat color dilution in mammals and feather color dilution in birds, and these genes generally affect melanocytes development and differentiation, melanin synthesis, and melanosome transport by influencing underlying pigment-forming pathways. Similar coat color dilution phenotype can often be found among species, which may be caused by conserved genes or by different genes. In the same species, there may be multiple genes that cause the same or similar diluted coat color phenotype. In the study, we reviewed the research progress on types of diluted coat color (feather color) phenotype of agricultural economic animals (mainly pigs, horses, cattle, sheep and chickens), the causal genes, mutations and genetic mechanisms of their formation, to provide references for further researches on the genetic mechanism of diluted coat color (feather color) in animals.]]></description>
<pubDate>2024/3/21 0:00:00</pubDate>
<category><![CDATA[Invited Review]]></category>
<author><![CDATA[XU Jiguo1, 2, CUI Fangfang2, ZHANG Guosheng3, XU Qiao1, 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XU Jiguo1, 2, CUI Fangfang2, ZHANG Guosheng3, XU Qiao1, 2</atom:name>
</atom:author>
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