野生谷物亲属Elymus sibiricus的染色体尺度组合
Wenjie Shen1,2, Bo Liu1,3, Jialei Guo1,2
1Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, Qinghai, China.
Scientific data
|July 26, 2024
概括
我们提出了Elymus sibiricus,一种有价值的料草的染色体规模基因组组. 这种高质量的组件有助于了解其遗传资源和养潜力.
科学领域:
- 植物基因组学 植物基因组学
- 提高作物质量 提高作物质量
- 生物信息学是一种生物信息学.
背景情况:
- 埃利莫斯物种是三叶草部落的一部分,代表了增强主要谷物作物的重要三级基因库.
- Elymus sibiricus是一种带有StH基因组的四平体,是干旱地区的关键多年料草.
研究的目的:
- 为Elymus sibiricus构建一个染色体尺度的参考基因组组.
- 为了促进Elymus属StH物种内遗传资源的探索.
- 为化Elymus sibiricus提供一个基础工具.
主要方法:
- 使用PacBio HiFi读取和染色体构造捕获用于基因组组装.
- 采用克默分析和子基因组特异性的重复序列来分阶段 St 和 H 子基因组.
- 进行了比较基因组分析,以确定染色体重组.
主要成果:
- 实现了6.929 Gb的染色体尺度组件,具有 49.518 Mb 的 N50 密度.
- 预测了89,800个编码蛋白质的基因,其重复序列占基因组的82.49%.
- 在Elymus sibiricus中发现了一种显著的特定物种的4H/6H互换转位.
结论:
- 高质量的Elymus sibiricus基因组组合是遗传研究的宝贵资源.
- 这种组装将加速利用Elymus物种中的遗传多样性,以提高作物质量.
- 这些基因组数据为Elymus sibiricus的未来化提供了关键的见解.
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