[1]倪睿,王海娟,王文博,等.陆地棉GhTIFY5A基因克隆及棉铃虫取食胁迫下表达分析[J].江苏农业科学,2026,54(11):58-64.
 Ni Rui,et al.Cloning of GhTIFY5A gene in upland cotton (Gossypium hirsutum) and analysis of its expression under feeding stress by Helicoverpa armigera[J].Jiangsu Agricultural Sciences,2026,54(11):58-64.
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陆地棉GhTIFY5A基因克隆及棉铃虫取食胁迫下表达分析()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第11期
页码:
58-64
栏目:
遗传育种与种质资源
出版日期:
2026-06-05

文章信息/Info

Title:
Cloning of GhTIFY5A gene in upland cotton (Gossypium hirsutum) and analysis of its expression under feeding stress by Helicoverpa armigera
作者:
倪睿1 王海娟2 王文博2 丁荣荣2 吉维维3 刘晓红3 王国平2 郭新勇1
1.石河子大学生命科学学院,新疆石河子 832000; 2.新疆生产建设兵团第七师农业科学研究所,新疆奎屯 833200; 3.新疆前海种业有限责任公司,新疆图木舒克 843900
Author(s):
Ni Ruiet al
关键词:
陆地棉虫食胁迫基因克隆表达分析
Keywords:
-
分类号:
S188;S562.01
DOI:
-
文献标志码:
A
摘要:
陆地棉(Gossypium hirsutum L.)作为重要的天然纤维作物,常受棉铃虫(Helicoverpa armigera)危害。为探究GhTIFY5A在棉花抗虫响应中的潜在调控作用,为后续功能验证及抗虫基因筛选提供理论依据,以陆地棉18BZ6为材料,利用生物信息学分析其理化性质及结构,克隆该基因并通过qRT-PCR分析陆地棉在虫食胁迫过程中GhTIFY5A的表达量差异变化。结果表明,成功克隆的GhTIFY5A基因的CDS为360 bp,编码蛋白含119个氨基酸(分子量13.7 ku,等电点9.60),具有保守的TIFY和Jas结构域,分别在100~192氨基酸位点和292~354氨基酸位点,属于亲水性不稳定蛋白,无信号肽及跨膜结构,二级结构以无规则卷曲(67.23%)和α-螺旋(21.85%)为主,主要定位于细胞核,三级结构同源建模显示高可信度(GMQE=0.70),预测含有11个丝氨酸和5个苏氨酸磷酸化位点。系统进化分析显示,GhTIFY5A与野西瓜苗、大麻槿和木槿的TIFY5A蛋白亲缘关系最近。虫食胁迫下表达动态发现GhTIFY5A表达极显著上升,3 d达到峰值,相较于3 d,5 d表达显著降低,7 d仍然维持在高于基础水平状态,说明棉铃虫取食对于GhTIFY5A基因的表达有一定的影响。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2025-05-09
基金项目:陆地棉高效遗传转化体系的建立及新种质创制与示范(编号:2023C13);“天山英才”计划“三农”骨干人才培养项目。
作者简介:倪睿(1999—),女,重庆人,硕士研究生,主要研究方向为生物化学与分子生物学。E-mail:1014435411@qq.com。
通信作者:郭新勇,博士,副教授,研究方向为生物化学与分子生物学,E-mail:406590631@qq.com;王国平,副研究员,研究方向为作物遗传与育种,E-mail:575913889@qq.com。
更新日期/Last Update: 2026-06-05