基因组数据为Rhodiola L. (Crassulaceae) 提供了强大的基因组骨干,并在其快速辐射过程中揭示了广泛的网状细胞进化
Chun-Qian Ren1, Dan-Qing Zhang1, Xiao-Ying Liu1
1National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China; Key Laboratory of Medicinal Plant Resource and Natural Pharmaceutical Chemistry of Ministry of Education, Shaanxi Normal University, Xi'an 710119, China.
Molecular phylogenetics and evolution
|June 17, 2023
概括
西藏高原 (TP) 上的罗迪奥拉因地质和气候变化而经历了快速辐射. 杂交和内向在这种多样化中发挥了关键作用,重新组装了遗传变异.
科学领域:
- 进化生物学是进化的生物学.
- 基因组学就是基因组学.
- 生物多样性研究的研究.
背景情况:
- 西藏高原 (TP) 是一个生物多样性热点,其血统可能经历快速辐射.
- 有限的基因组研究存在于TP物种多样化的进化模式.
研究的目的:
- 为了重建罗迪奥拉的原始基因,一种被怀疑是TP上快速辐射的血统.
- 通过基因组数据调查罗迪奥拉内的基因流动,内进和多样化率.
主要方法:
- 使用基因型测序 (GBS) 数据进行基因组学重建.
- 基于连锁和凝聚的家族遗传学分析.
- 基因流动,内进,多样化速率和分子约会分析.
主要成果:
- 一个强大的分类学揭示了五个在Rhodiola内部得到良好支持的分类.
- 在物种中检测到普遍的基因流和内进化的证据.
- 多元化速度显示了最初的快速阶段,随后是放缓,这表明利基填充.
结论:
- 西藏高原的升起和米奥森中期的全球降温很可能促进了罗迪奥拉的快速辐射.
- 基因流和内进是快速辐射事件的重要贡献者,通过促进新的遗传组合.
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