Genetic variation and population history of three related fir species Abies sachalinensis, A. nephrolepis and A. gracilis (Pinaceae) revealed by nuclear microsatellites

Q3 Environmental Science

Botanica Pacifica Pub Date : 2023-01-01 DOI:10.17581/bp.2023.12203

V. Semerikov, S. A. Semerikova

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Abstract

Seventeen nuclear microsatellite loci (nSSR) were used to study the genetic diversity and historical demography of three Northeast Asian fir species: insular Sakhalin fir Abies sachalinensis (Fr. Schmidt) Mast., continental A. nephrolepis (Trautv.) Maxim. and Kamchatka endemic A. gracilis Kom. Bayesian clustering, performed using the STRUCTURE software separated the considered species from each other and divided A. sachalinensis populations into several groups located from south to north. According to the results of ABC analysis, the ancestors of A. nephrolepis and the ancestors of southern populations of A. sachalinensis split about 600 ka BP. Populations of A. sachalinensis of northern Sakhalin originated from A. nephrolepis about 300 ka BP. Populations of central Sakhalin were formed, probably, as a result of mixing of populations of northern and southern Sakhalin during the late glacial (about 18 ka BP). The origin of the A. gracilis is inferred as a result of separation from populations of northern Sakhalin, probably before the last glacial maximum.

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松科冷杉冷杉(Abies sachalinensis、A. nephrolepis和A. gracilis)近缘种遗传变异及种群历史研究

利用17个核微卫星位点(nSSR)对3个东北亚冷杉种库页岛冷杉Abies sachalinensis (Fr. Schmidt) Mast的遗传多样性和历史人口统计学进行了研究。，陆生肾蚜(Trautv)的格言。堪察加特有的A. gracilis Kom。利用STRUCTURE软件进行贝叶斯聚类分析，将考虑的物种相互分离，并将萨沙林南方古猿种群从南到北划分为几个类群。ABC分析结果表明，南方古猿与南方古猿的祖先在600 ka BP左右发生了分裂。库页岛北部萨哈林古猿种群起源于约300 ka BP的A. nephrolepis。库页岛中部的种群可能是在冰川晚期(约18 ka BP)由库页岛北部和南部种群混合形成的。古猿gracilis的起源被推断为与库页岛北部种群分离的结果，可能在最后一次冰川极大期之前。

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来源期刊

Botanica Pacifica Environmental Science-Ecology

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Botanica Pacifica (BP) publishes peer-reviewed, significant research of interest to a wide audience of plant scientists in all areas of plant biology (structure, function, development, diversity, genetics, evolution, systematics), all levels of organization (molecular to ecosystem), and all plant groups and allied organisms (cyanobacteria, fungi, and lichens). BP requires authors to frame their research questions and discuss their results in terms of contemporary problems of plant biology. While the geographic focus of the journal is the Pacific region, research submissions that demonstrate clear linkages with other regions are welcome. BP aims to foster the exchange of research ideas between countries with diverse cultures and languages.