Ice age-driven range shifts of diploids and expanding autotetraploids of Biscutella laevigata within a conserved niche

IF 8.3 1区生物学 Q1 PLANT SCIENCES

New Phytologist Pub Date : 2024-09-10 DOI:10.1111/nph.20103

Sandra Grünig, Theofania Patsiou, Christian Parisod

引用次数: 0

Abstract

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冰河时期驱动的二倍体和不断扩大的自交系比斯库氏菌在一个保守的生态位内的分布区转移

laevigata，再加上二倍体种群在中欧地区的零散分布，导致该物种群中出现了 20 个种、亚种或变种（Machatschki-Laurich, 1926; Olowokudejo & Heywood, 1984; Raffaelli & Baldoin, 1997）。由于之前的遗传研究只关注分布区的一部分（如阿尔卑斯山西部；Parisod & Besnard, 2007）或使用分辨率较低的遗传标记（如同工酶；Tremetsberger 等人, 2002），阿尔卑斯山二倍体的时空分化和四倍体的起源仍然难以捉摸。因此，在本研究中，我们结合了 ddRAD-seq（双位限制性位点相关 DNA 测序）来描述全基因组的遗传变异模式和生态位模型，以重新审视 B. laevigata 在欧洲阿尔卑斯山的进化历史。基于对阿尔卑斯山周围和阿尔卑斯山内的二倍体B. laevigata种群的全面取样以及对整个阿尔卑斯山的四倍体B. laevigata种群的密集取样，我们评估了它们在空间和时间上的遗传和生态分化，以具体解决以下问题：（1）杂交在阿尔卑斯山四倍体B. laevigata起源中的作用；（2）四倍体B. laevigata是通过单一起源还是多重起源进化而来；以及（3）倍性转变是否伴随着气候生态位的转变。

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来源期刊

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.