华北农学报 ›› 2019, Vol. 34 ›› Issue (3): 9-15. doi: 10.7668/hbnxb.201751715

所属专题: 棉花 生物技术

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

棉花GhTFL1b基因的表达及调控分析

张晓红1, 王寒涛2, 王聪聪2, 张芳芳1, 邓妍1, 魏恒玲2, 胡根海1   

  1. 1. 河南科技学院 生命科技学院, 现代生物育种协同创新中心, 河南 新乡 453003;
    2. 中国农业科学院 棉花研究所, 棉花生物学国家重点实验室, 河南 安阳 455000
  • 收稿日期:2019-01-23 出版日期:2019-06-28
  • 通讯作者: 胡根海(1966-),男,河北新河人,副教授,博士,主要从事棉花基因克隆与转基因研究。
  • 作者简介:张晓红(1986-),女,山西吕梁人,讲师,博士,主要从事植物分子遗传与转基因研究。
  • 基金资助:
    棉花生物学国家重点实验室开放课题(CB2018A08);河南省高等学校重点科研项目(18A210002;19A210012)

Expression and Regulation Analysis of GhTFL1b Gene in Upland Cotton

ZHANG Xiaohong1, WANG Hantao2, WANG Congcong2, ZHANG Fangfang1, DENG Yan1, WEI Hengling2, HU Genhai1   

  1. 1. College of Life Science and Technology, Henan Institute of Science and Technology, Henan Collaborative Innovation Center of Modern Biological Breeding, Xinxiang 453003, China;
    2. Institute of Cotton Research of Chinese Academy of Agricultural Sciences, State Key Laboratory of Cotton Biology, Anyang 455000, China
  • Received:2019-01-23 Published:2019-06-28

摘要: 为解析棉花中磷脂酰乙醇胺结合蛋白GhTFL1b基因对胁迫的响应及生理功能,从棉花中克隆了磷脂酰乙醇胺结合蛋白GhTFL1b基因,并对该基因进行表达分析和蛋白质互作研究。利用启动子分析软件PlantCARE预测得出,GhTFL1b启动子区域有茉莉酸响应元件、脱落酸响应元件、干旱诱导的MYB结合位点和光周期响应元件等。对GhTFL1b进行组织特异性表达分析,发现该基因在花中表达量最高,其次是根和顶芽,其他组织中表达量极低。进一步比较栽培种和半野生种不同时期的表达,发现无明显差异。激素和胁迫处理研究表明,GhTFL1b基因受水杨酸(Salicylic acid,SA)诱导低调表达,而受盐胁迫处理后高调表达。酵母双杂交验证GhFD与GhTFL1亚组蛋白互作,结果表明GhFD蛋白只能与GhTFL1b互作,而不与GhTFL1a、GhTFL1b、GhTFL1c互作。GhTFL1b基因不参与光周期调控通路,可能参与植物逆境胁迫水杨酸和盐胁迫响应的调控。

关键词: 棉花, GhTFL1b基因, 表达分析, 调控

Abstract: In order to study the response of cotton phosphatidylethanolamine-binding protein GhTFL1b gene to stress and physiological function, we cloned the GhTFL1b gene from upland cotton, and then analyzed its expression pattern and protein interaction. The results of promoter structure prediction using PlantCARE software revealed that GhTFL1b promoter contained MeJA responsiveness element, abscisic acid(ABA) responsiveness element, MYB binding sites involved in drought inducibility and light responsiveness elements. Meanwhile, Quantitative Real time PCR result indicated that the expression profile of GhTFL1b was induced by salicylic acid(SA) negatively, while it could be regulated by salt(NaCl) positively. Yeast two hybrid approach were under taken to elucidate the protein interaction of GhFD and GhTFL1 subgroup, and the experiments showed that GhFD could interact with GhTFL1b but not with GhTFL1a, GhTFL1b and GhTFL1c in cotton. Taken together, the result suggested that GhTFL1b might be involved in the regulation of response to abiotic stresses(SA and salt).

Key words: Upland cotton, GhTFL1b gene, Expression analysis, Regulation

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引用本文

张晓红, 王寒涛, 王聪聪, 张芳芳, 邓妍, 魏恒玲, 胡根海. 棉花GhTFL1b基因的表达及调控分析[J]. 华北农学报, 2019, 34(3): 9-15. doi: 10.7668/hbnxb.201751715.

ZHANG Xiaohong, WANG Hantao, WANG Congcong, ZHANG Fangfang, DENG Yan, WEI Hengling, HU Genhai. Expression and Regulation Analysis of GhTFL1b Gene in Upland Cotton[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(3): 9-15. doi: 10.7668/hbnxb.201751715.

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