由结构变异引入的大规模基因表达改变驱动了Brassica oleracea中的形态型多样化
Xing Li1, Yong Wang1, Chengcheng Cai1,2
1State Key Laboratory of Vegetable Biobreeding, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture and Rural Affairs, Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China.
Nature genetics
|February 14, 2024
概括
在Brassica oleracea基因组中的结构变异 (SVs) 调节基因表达,推动了花菜和大白菜等多种蔬菜作物的进化和化.
科学领域:
- 植物基因组学 植物基因组学
- 进化生物学是进化的生物学.
- 农业科学 农业科学
背景情况:
- 布拉西卡 (Brassica oleracea) 呈现出显著的形态型多样性,使其成为研究植物进化和化的关键模型.
- 了解这种多样性的遗传基础对于作物改良和农业创新至关重要.
研究的目的:
- 构建Brassica oleracea的综合泛基因组,包括所有主要形态型和野生亲属.
- 识别和描述结构变异 (SVs) 以及它们对跨多种加入的基因表达的影响.
主要方法:
- 使用27个高质量的参考基因组构建一个Brassica oleracea泛基因组.
- 通过基于图的基因组工具识别和描述704 B. oleracea加入中的结构变异 (SVs).
- 对SVs对基因表达的影响的分析,包括DNA甲基化和转录因子结合元素.
主要成果:
- 在Brassica oleracea基因组中发现了许多结构变异 (SV).
- 证明SVs可以双向调节基因表达,可以抑制或促进它.
- 提供了SVs在不同形态型中影响关键基因 (例如BoPNY,BoCKX3,BoKAN1,BoACS4,BoMYBtf) 的具体例子.
结论:
- 结构变异 (SVs) 作为Brassica oleracea中基因表达的显著剂量调节者.
- 在Brassica oleracea作物的化和多样化中,SVs起着至关重要的作用.
- 这项研究为了解植被多样性的基因架构提供了基础.
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