FHY3/FAR1可移植元素在Bassia scoparia基因组中产生适应性遗传变异
Nathan Hall1, Jacob Montgomery1, Jinyi Chen1,2
1Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, USA.
Pest management science
|April 1, 2025
概括
可转移的元素,包括FHY3/FAR1基因和Muntjac MuDR元素,驱动着科希亚 (Bassia scoparia) 的适应性进化和除草剂耐药性. 这项研究详细介绍了与草甘耐药性相关的基因扩张和转重复.
科学领域:
- 基因组学就是基因组学.
- 进化生物学 进化生物学
- 杂草科学 杂草科学
背景情况:
- 在农业学上重要的杂草Bassia scoparia (kochia) 的进化是很少理解的.
- 可转移元素 (TE) 活动是适应性进化的关键驱动力.
研究的目的:
- 为了生成Bassia scoparia的高质量基因组组.
- 调查TE活动在科希亚的适应性进化中的作用,特别是对除草剂的耐药性.
主要方法:
- 基因组组装和支架. 基因组组装和支架.
- 蛋白质编码基因的注释.
- 可转移元素和基因家族的识别和表征.
主要成果:
- 产生了一个969.6 Mb的基因组组装与14个支架.
- 科希亚表现出具有远红色延长型阴囊3 (FHY3) 或远红色受损反应1 (FAR1) 域的基因的大量扩张.
- 假定突变者Don-Robertson (MuDR) TEs,包括一个新的"Muntjac"亚型,通过5-enolpyruvylshikimate-3-phosphate合成酶重复和转重复与草甘耐药性有关.
结论:
- FHY3/FAR1基因作为活跃的可转移元素起作用.
- 在科希亚中,TEs在 Herbicide 耐药性的演变中发挥着重要作用.
- 这项研究提供了对转子子与环境相互作用和杂草管理策略的新见解.
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