| 雷建军.辣椒抗病分子育种研究进展[J].广东农业科学,2024,(4):- |
| Research progress on molecular breeding of resistance to disease in pepper |
| 投稿时间：2023-12-21 修订日期：2024-04-20 |
| DOI： |
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| Abstract: |
| Pepper originated in South America and was introduced to China in the 16th century. The nutritional value of pepper is high. It has an important role in health care, beauty, food, medicine, violence and other industries. it become one of the most important vegetable crops in China. The cultivation area has gradually increased, and is now located in the first in China. In the process of pepper production, due to many reasons, it will inevitably suffer from various diseases (virus disease, bacterial wilt, blight, anthracnose, scab disease, etc.), causing great losses to production. It is the most economical and effective choice for disease control to use 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 the direction of future breakthroughs. In recent years, the molecular breeding of pepper disease resistance has made important progress, especially the molecular mechanism of disease resistance has made a series of achievements, however there are few reviews in this field. Molecular breeding mainly includes two parts, one is marker-assisted selection, the other is to create 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 the 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. This paper will focus on molecular markers and marker-assisted selection, molecular mechanism of disease resistance (bacterial wilt, blight, anthracnose , viral disease, scab and soft rot, etc.), disease-resistant germplasm obtained by transgenic technology (resistance to virus, bacterial wilt and Phytophthora capsici) and the development trend and research focus in the future were prospected. |
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