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三级遗迹奥斯曼图斯的网状进化

Yongfu Li¹, Xuan Li¹, Shuai Nie²

¹Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, International Cultivar Registration Center for Osmanthus, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China.

The Plant journal : for cell and molecular biology

|October 14, 2023

概括

进化,或物种之间的基因流动,显著塑造了Osmanthus的进化历史,这是一个以东亚为中心的植物属. 遗传网络,而不是简单的树木,更好地代表了这些复杂的,网状的物种关系.

科学领域:

进化生物学进化生物学
人类遗传学是一个学科.
植物系统学植物系统学

背景情况:

跨物种基因流复杂化了传统的遗传学树的表征.
奥斯曼图斯 (Oleaceae) 是东亚植物中的一个关键属,其进化历史需要澄清.

研究的目的:

为了研究内向性在奥斯曼斯属进化多样化中的作用.
构建精确的家族遗传网络,反映奥斯曼修斯内部复杂的物种关系.

主要方法:

使用多个测序数据类型:全基因组再测序,转录组测序和nrDNA桑格测序.
采用连接和凝聚方法来构建家族遗传树和网络.
进行了历史生物地理分析和多元化率估计.

主要成果:

在"Core Osmanthus"类中,遗传学冲突很普遍,这表明了类似网状的物种关系.
不完整的血统分类无法解释这些冲突,强烈暗示内入侵.
奥斯曼图斯起源于米欧纪欧洲,分散到西藏高原东部,随后向东扩散.

结论:

内向在奥斯曼修斯的进化历史和多样化中发挥了深刻的作用.
遗传学网络对于准确描绘具有显著基因流动的属的进化历史至关重要.
这项研究提供了关于亚热带东亚遗迹属多样化的见解.

关键词:

历史生物地理学历史生物地理学这是一个内进的进攻.人类基因组学是什么?网状细胞的演化过程.

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