华北农学报 ›› 2022, Vol. 37 ›› Issue (6): 72-81. doi: 10.7668/hbnxb.20192979

所属专题: 棉花 植物保护 生物技术 热点文章

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

陆地棉细胞色素P450基因GhP450-94C1黄萎病抗性功能验证

胡子曜1, 李秀青2, 代培红1, 雷建峰2, 柳建飞1, 赵燚1, 邓嘉辉1, 刘超1, 刘晓东1, 李月1,   

  1. 1 新疆农业大学 生命科学学院,新疆 乌鲁木齐 830052
    2 新疆农业大学 农学院,新疆 乌鲁木齐 830052
  • 收稿日期:2022-08-08 出版日期:2022-12-28
  • 通讯作者:
    李 月(1984—),女,河南许昌人,副教授,博士,主要从事作物逆境分子生物学研究。
  • 作者简介:

    胡子曜(1997—),男,山东东营人,硕士,主要从事作物逆境分子生物学研究。

  • 基金资助:
    国家自然科学基金项目(32160494)

Functional Verification of GhP450-94C1 that a Verticillium wilt Resistant Gene in Gossypium hirsutum L.

HU Ziyao1, LI Xiuqing2, DAI Peihong1, LEI Jianfeng2, LIU Jianfei1, ZHAO Yi1, DENG Jiahui1, LIU Chao1, LIU Xiaodong1, LI Yue1,   

  1. 1 College of Life Sciences, Xinjiang Agricultural University, Urumqi 830052,China
    2 College of Agronomy, Xinjiang Agricultural University, Urumqi 830052,China
  • Received:2022-08-08 Published:2022-12-28

摘要:

为了探究陆地棉细胞色素P450基因GhP450-94C1在棉花黄萎病反应中的生物学功能,为棉花黄萎病抗性基因挖掘及抗病育种奠定基础,通过转录组筛选,克隆获得一个细胞色素P450基因GhP450-94C1,利用生物信息学的方法分析该基因的理化性质,通过荧光定量PCR技术分析GhP450-94C1在黄萎病侵染下的表达模式,利用病毒诱导的基因沉默(VIGS)技术初步探究其在棉花抗黄萎病反应中的生物学功能。结果表明,克隆获得一个陆地棉细胞色素P450基因GhP450-94C1,其开放阅读框(ORF)为1 503 bp,编码一个含500个氨基酸的酸性、亲水、不稳定的跨膜蛋白,分子式为C2597H4025N691O725S22,分子质量为57.23 ku,定位于内质网膜,含有一个P450结构域;有86.45%的概率存在信号肽;二级结构预测显示,该蛋白含有24个α-螺旋和8个β-折叠;该基因响应黄萎病菌侵染,抑制其表达后植株对黄萎病菌的敏感性增强。初步证明GhP450-94C1是棉花黄萎病抗性反应的一个正向调控因子。

关键词: 棉花黄萎病, GhP450-94C1, 基因克隆, 病毒诱导的基因沉默

Abstract:

To explore the biological function of cotton cytochrome P450 gene GhP450-94C1 in cotton Verticillium wilt response, and lay a foundation for cotton Verticillium wilt resistance gene mining and disease resistance breeding. A cytochrome P450 gene, GhP450-94C1, was cloned through transcriptome screening. The physicochemical properties of the gene were analyzed by bioinformatics methods. The expression pattern of GhP450-94C1 under Verticillium wilt induction was analyzed by Real-time quantitative polymerase chain reaction (qRT-PCR). Virus-induced gene silencing (VIGS) technology was used to preliminarily explore its biological function in cotton resistance to Verticillium wilt. The main results were as follows: upland cotton cytochrome P450 gene, GhP450-94C1, was obtained by cloning. The open reading frame (ORF) was 1 503 bp, encoding an acidic, hydrophilic and unstable transmembrane protein with 500 amino acids. The molecular formula was C2597H4025N691O725S22 with a molecular weight of 57.23 ku, which was located in the endoplasmic reticulum membrane and contained a P450 domain. There was 86.45% probability of signal peptide; the secondary structure prediction showed that the protein contained 24 α-helixes and 8 β-sheets. This gene responds to Verticillium wilt infection, and after inhibiting its expression, the sensitivity of plants to Verticillium wilt is enhanced. GhP450-94C1 is a positive regulator of cotton resistance to Verticillium wilt.

Key words: Cotton Verticillium wilt, GhP450-94C1, Gene cloning, Virus-induced gene silencing

引用本文

胡子曜, 李秀青, 代培红, 雷建峰, 柳建飞, 赵燚, 邓嘉辉, 刘超, 刘晓东, 李月. 陆地棉细胞色素P450基因GhP450-94C1黄萎病抗性功能验证[J]. 华北农学报, 2022, 37(6): 72-81. doi: 10.7668/hbnxb.20192979.

HU Ziyao, LI Xiuqing, DAI Peihong, LEI Jianfeng, LIU Jianfei, ZHAO Yi, DENG Jiahui, LIU Chao, LIU Xiaodong, LI Yue. Functional Verification of GhP450-94C1 that a Verticillium wilt Resistant Gene in Gossypium hirsutum L.[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(6): 72-81. doi: 10.7668/hbnxb.20192979.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.20192979

               http://www.hbnxb.net/CN/Y2022/V37/I6/72