基于核和质体DNA序列的龙葵属植物时间多样性研究

4区农林科学 Q3 Agricultural and Biological Sciences

Genetika-Belgrade Pub Date : 2022-01-01 DOI:10.2298/gensr2203135n

F. Nasrollahi, S. Kazempour-Osaloo, Valyollah Mozaffarian, H. Zare-Maivan

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引用次数: 0

摘要

石竹属是一个形态变异较大的同质分类群，由于石竹属间的相似性，在鉴定上存在许多问题。因此，在系统上和分类学上，它被认为是一个困难的属。在本研究中，我们在其分布范围内纳入了大量的Onosma物种。利用核(ITS)标记和两个质体(rpl32-trnL(UAG)和trnH-psbA)标记，分析了热带、亚热带和温带三种地区稻蛾的进化历史、分化时间和多样化模式。辐散时间估计表明，Onosma s.l.的早期辐射发生在渐新世-中新世交界。BAMM分析表明，最佳配置包括Onosma内部多样化率的一个显著变化:在通往伊朗物种组成的分支上。

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Temporal diversification in the genus Onosma (Boraginaceae) based on nuclear and plastid DNA sequences

The genus Onosma is a homogeneous taxon with high morphological variation and due to the similarities among the Onosma taxa, there are many problems in their identification. Hence, systematically and taxonomically, it is considered a difficult genus. In the present study, we included a large number of Onosma species throughout their distribution range. Using nuclear (ITS) and two plastids (rpl32-trnL(UAG) and trnH-psbA) markers, we analyzed the evolutionary history, divergence time and diversification patterns of Onosma across the tropical, subtropical and temperate regions. Divergence time estimates suggest the early radiation of Onosma s.l. happened at the Oligocene-Miocene boundary. BAMM analyses indicate that the best configuration included one significant shift in diversification rates within Onosma: on the branch leading to the clade comprised of species of confined to Iran.

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来源期刊

Genetika-Belgrade AGRONOMY-GENETICS & HEREDITY

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The GENETIKA is dedicated to genetic studies of all organisms including genetics of microorganisms, plant genetics, animal genetics, human genetics, molecular genetics, genomics, functional genomics, plant and animal breeding, population and evolutionary genetics, mutagenesis and genotoxicology and biotechnology.