文章摘要
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
查看全文    HTML 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
  
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)
作者单位
叶玉妍,陈 晓,杨礼香 广州大学生命科学学院广东 广州 510006 
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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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