Ecological speciation with gene flow followed initial large-scale geographic speciation in the enigmatic afroalpine giant senecios (Dendrosenecio)

IF 8.1 1区 生物学 Q1 PLANT SCIENCES New Phytologist Pub Date : 2025-02-01 DOI:10.1111/nph.20432
Juan Manuel Gorospe, Eliška Záveská, Desalegn Chala, Abel Gizaw, Felly Mugizi Tusiime, A. Lovisa S. Gustafsson, Lubomír Piálek, Filip Kolář, Christian Brochmann, Roswitha Schmickl
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神秘的非洲高山巨蕨(Dendrosenecio)初始大规模地理物种形成后的基因流动生态物种形成
山区具有高度异质性的环境,通过生态适应、地理隔离和次生接触为谱系分化提供了充足的机会。东非山顶的非洲高山植被碎片的地理和生态隔离使它们成为研究物种形成的绝佳系统。非洲高山特有属Dendrosenecio的最初多样化是通过四个孤立的山地类群之间的异域分化发生的,但这些类群中生态物种形成的潜在作用以及基因流在物种形成中的作用仍不确定。在这里,我们扩展了Dendrosenecio的采样,并使用系统基因组学来评估基因流在该属多样化中的重要性。然后,利用种群基因组学、人口统计学建模和生境分化分析,研究了发生在肯尼亚山的两个姐妹物种的生态物种形成。我们发现两个同域姐妹种在肯尼亚山占据着不同的微栖息地,我们的分析支持它们通过基因流动的生态物种形成在原地起源。此外,我们还获得了山地群间混合历史的信号。综上所述,这些结果表明地理隔离形成了主要的谱系,而生态介导的物种形成发生在单个山脉内。
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来源期刊
New Phytologist
New Phytologist 生物-植物科学
自引率
5.30%
发文量
728
期刊介绍: New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.
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