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在Arctotheca calendula中,EPSPS目标部位机制赋予了草甘耐药性

Norazua Zakaria¹, Heping Han², Yaseen Khalil^2,3

¹Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Malaysia.

Pest management science

|February 5, 2025

概括

开普草的草甘耐药性涉及特定的EPSPS基因突变 (Pro-106-Ser) 和更高的基因表达. 这导致抗性增加了10倍以上,影响了杂草管理策略.

科学领域:

农业科学农业科学
植物生物学植物生物学
分子生物学分子生物学

背景情况:

首次报告的草甘耐药性是在西澳大利亚的角草中.
这项研究研究了潜在的抵抗机制.

研究的目的:

为了阐明草甘耐药性的分子基础.
为了确定特定的遗传和表达变化赋予耐药性.

主要方法:

EPSPS 基因测序和克隆.
草甘吸收和转移的分析.
基因表达水平的量化.

主要成果:

鉴定了一种在抗性角草的EPSPS基因中的Pro-106-Ser替代.
耐药种群显示了超过10倍的草甘耐药性.
耐药植物的EPSPS基因表达是耐药植物的4.3倍.
没有观察到草甘吸收或转移的显著差异.

结论:

草甘耐药性归因于位突变 (Pro-106-Ser) 和高EPSPS基因表达.
这些因素的结合使得山角种群具有显著的耐药性.

关键词:

在 EPSPSPS中使用.开普韦德的时间对草甘的耐药性草甘耐药性目标站点的电阻阻力

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