Divergence of Oxytropis Species from the Section Verticillares (Fabaceae) of Steppe Flora of Baikal Siberia Based on Analysis of Chloroplast DNA

被引：7

作者：

Kholina, A. B. ^{[1
]}

Kozyrenko, M. M. ^{[1
]}

Artyukova, E., V ^{[1
]}

Sandanov, D., V ^{[2
]}

机构：

[1] Russian Acad Sci, Far Eastern Branch, Fed Sci Ctr East Asia Terr Biodivers, Vladivostok 690022, Russia

[2] Russian Acad Sci, Inst Gen & Expt Biol, Siberian Branch, Ulan Ude 670047, Russia

来源：

RUSSIAN JOURNAL OF GENETICS | 2019年 / 55卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

Oxytropis; Fabaceae; genetic diversity; species divergence; haplotypes; chloroplast DNA; Baikal Siberia; PHYLOGENETIC-RELATIONSHIPS; CHANKAENSIS JURTZ; INTERGENIC SPACERS; SEQUENCES;

D O I：

10.1134/S102279541906005X

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

The analysis of nucleotide sequence polymorphism of chloroplast DNA psbA-trnH, trnL-trnF, and trnS-trnG intergenic spacers in the Oxytropis lanata, O. myriophylla, O. oxyphylla, O. selengensis, and O.stukovii (section Verticillares) of the steppe flora of Baikal Siberia demonstrated that the populations are characterized by a high haplotype (0.634-1.000) and relatively low (0.0003-0.0045) nucleotide diversity. Statistically significant values of genetic distances between the populations of the same species change from 0.19382 to 0.43449. Marker nucleotide substitutions and indels were detected in O. lanata, O. gracillima, O.interposita, O. pumila, and O. mongolica, indicating a significant divergence of their chloroplast genomes. A weak differentiation (Phi(ST) = 0.137, P < 0.0001) between O. oxyphylla, O. selengensis, O. stukovii and O. bargusinensis and also low values of genetic distances (0.08939-0.32339) (corresponding to interpopulation distances), absence of differentiating molecular markers, formation of a single haplogroup in the median network, and presence of common haplotypes indicate that these species are a genetically homogeneous group probably formed as a result of relatively recent and rapid divergence from the common ancestor, as well as a high degree of interspecies hybridization.

引用

页码：701 / 710

页数：10