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中国农学通报 ›› 2020, Vol. 36 ›› Issue (21): 98-103.doi: 10.11924/j.issn.1000-6850.casb20190500215

所属专题: 生物技术 小麦

• 生物科学 • 上一篇    下一篇

小麦TaPLD-2基因的克隆及功能分析

宋少帅, 吴凡, 刘会文, 贺小彦, 穆平()   

  1. 青岛农业大学农学院,山东青岛 266109
  • 收稿日期:2019-05-29 修回日期:2019-07-01 出版日期:2020-07-25 发布日期:2020-07-21
  • 通讯作者: 穆平
  • 作者简介:宋少帅,男,1992年出生,山东茌平人,在读研究生,主要从事小麦遗传育种研究。通信地址:266000 山东省青岛市城阳区长城路700号 青岛农业大学,Tel:18663974113,E-mail:1280318639@qq.com。
  • 基金资助:
    山东省现代农业产业体系小麦创新团队“小麦遗传育种岗位”(SDAIT-01-05);山东省农业良种工程项目“高效小麦分子设计育种技术体系的建立与应用”(2016LZGC-023)

Cloning and Functional Analysis of Wheat TaPLD-2 Gene

Song Shaoshuai, Wu Fan, Liu Huiwen, He Xiaoyan, Mu Ping()   

  1. College of Agronomy, Qingdao Agricultural University, Qingdao Shandong 266109
  • Received:2019-05-29 Revised:2019-07-01 Online:2020-07-25 Published:2020-07-21
  • Contact: Mu Ping

摘要:

为了寻找耐盐新基因,培育耐盐新品种。本研究以23个小麦品种为材料,对TaPLD-2基因进行克隆及序列多态性分析,并对TaPLD-2基因响应盐胁迫表达模式进行了研究。结果表明,TaPLD-2基因的全长编码框为1301 bp,位于2DS染色体上,编码的蛋白定位于细胞质,为亲水蛋白,无跨膜区域,属于可溶性NAD(P)(H)氧化还原酶家族;TaPLD-2基因受盐胁迫诱导上调表达,表达量在盐胁迫24 h为对照组的1.8倍,48 h达到最高,为对照组5倍。分析表明SNP位点与相对根长、相对株高及K+、Na+含量都存在一定程度的相关性。

关键词: 小麦, 基因多态性, 转录组分析, 盐胁迫, 生物信息学分析

Abstract:

The study aims to find new salt-tolerant genes and breed new salt-tolerant varieties. 23 wheat varieties were used as materials to clone and sequence polymorphisms of TaPLD-2 gene, and TaPLD-2 gene expression patterns in response to salt stress was studied. The results showed that the full-length coding frame of TaPLD-2 gene was 1301 bp, located on the 2DS chromosome, and the protein was a hydrophilic protein and located in cytoplasm. The protein had no transmembrane region and belonged to the soluble NAD (P) (H) oxidoreductase family. The TaPLD-2 gene was induced to up-regulated expression by salt stress, and the expression level was 1.8 times that of the control group at 24 h after salt stress, and reached the highest at 48 h, which was 5 times that of the control group. The analysis result showed that the SNP loci had some relevance to relative root length, relative plant height, and K+ and Na+ contents of salt-treated plants.

Key words: wheat, gene polymorphism, transcriptome analysis, salt stress, bioinformatics analysis

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