叶玉妍,陈 晓,杨礼香.土人参Actin 基因片段的克隆及序列分析[J].广东农业科学,2018,45(6):19-24 |
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土人参Actin 基因片段的克隆及序列分析 |
Cloning and sequence analysis of Actin gene fragment from Talinum paniculatum Gaertn |
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DOI:10.16768/j.issn.1004-874X.2018.06.004 |
中文关键词: 土人参 肌动蛋白 Actin 基因 克隆 序列分析 |
英文关键词: Talinum paniculatum Actin Actin gene clone sequence analysis |
基金项目:国家自然科学基金(31570257) |
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中文摘要: |
为土人参功能基因的表达与调控提供内参基因,根据已知植物Actin 基因的保守区设计简并 性
引物,采用RT-PCR 方法扩增得到土人参的Actin 基因片段,将该片段连接于pGEM-T 载体,测序获得一段
大小为598 bp 的基因片段,该片段编码198 个氨基酸。通过生物信息学软件分析,该序列与其他植物Actin
基因的cDNA 序列同源性均在85% 以上,氨基酸序列的同源性达到86% 以上,表明试验克隆所得基因片段
为土人参Actin 基因片段。将该Actin 基因片段命名为TpActin1,并登陆在GenaBank,登录号为MH333039。 |
英文摘要: |
In order to provide reference gene for studying the expression pattern of functional genes in Talinum
paniculatum,the cDNA fragment of Actin from Talinum paniculatum;was amplified by RT-PCR,by adopting
degenerated primers designed according to the conserved region of the Actin genes which were submitted to NCBI
database. The cDNA fragment was inserted into the pGEM-T vector and sequenced. The cDNA sequence was
analyzed by online bioinformatics software. Our result showed that this actin cDNA includes 598 base pairs,encoding
a partial actin with 198 amino acids. Sequence alignments showed that it shares over 85% nucleotide sequence
identity and 86% amino acid sequence identity with other plant actins. This study indicated that a new actin cDNA
fragment was isolated from Talinum paniculatum. This cDNA was named TpActin1 and submitted to GenBank
(accession number: MH33309). |
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