Phylogenetic Relationships of Oxytropis chankaensis Jurtz. and Oxytropis oxyphylla (Pall.) DC. (Fabaceae) Inferred from the Data of Sequencing of the ITS Region of the Nuclear Ribosomal DNA Operon and Intergenic Spacers of the Chloroplast Genome
Phylogenetic Relationships of Oxytropis chankaensis Jurtz. and Oxytropis oxyphylla (Pall.) DC. (Fabaceae) Inferred from the Data of Sequencing of the ITS Region of the Nuclear Ribosomal DNA Operon and Intergenic Spacers of the Chloroplast Genome
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DOI：
10.1134/s1022795411110032
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发表时间：
2012-02-01
影响因子：
0.6
通讯作者：
Kozyrenko, M. M.
中科院分区：
文献类型：
--
作者：
Artyukova, E. V.;Kozyrenko, M. M.
同源四倍体长春棘豆。是滨海边疆区黄芩属唯一代表植物，分布范围局限于Khanka湖西岸的沙质带。黄芩科的模式种为O. oxyphylla （Pall.）。直流。，有些作者把O. chankaensis当作它的同义词。ITS序列分析表明，钱卡杉在系统发育上与O. oxyphylla和O. racemosa Turcz亲缘关系较近。从百利亚科和O. anertii Nakai种。， O.纤毛图。，以及O. inschanica H. C. Fu和S. H. Cheng来自Xerobia剖面，但该分析未能解决Oxytropis属内种间的系统发育关系。通过对cpDNA的trni - psba、trl - trnf、trnS-trnG和petG-trnP区域的分析，揭示了赤杉和叶杉叶绿体基因组存在相当大的差异。这些物种的祖先谱系在近200万年前分化，这证实了O. chankaensis的分类有效性。考虑到O. chankaensis的生态特异性和O. oxyphylla的现今分布范围，可以假设它们起源于一个祖先的母系，该母系产生了Baicalia剖面的物种。DOI: 10.1134 / S1022795411110032
The autotetraploid Oxytropis chankaensis Jurtz. is the only representative of the section Baicalia (subgenus Oxytropis, Fabaceae) in Primorskii Krai, and its range is restricted to the sandy belt along the western coast of the Khanka Lake. The type species of the section Baicalia is O. oxyphylla (Pall.) DC., and O. chankaensis is regarded by some authors as its synonym. Analysis of the ITS sequences showed that O. chankaensis is phylogenetically closely related to the species O. oxyphylla and O. racemosa Turcz. from the section Baicalia and also to the species O. anertii Nakai., O. ciliata Turcz., and O. inschanica H. C. Fu & S. H. Cheng from the section Xerobia, but this analysis failed to resolve the phylogenetic relationships of the species within the genus Oxytropis. The analysis of the trnII-psbA, trnL-trnF, trnS-trnG, and petG-trnP regions of cpDNA revealed molecular differences between O. chankaensis and O. oxyphylla that are indicative of considerable divergence of their chloroplast genomes. The ancestral lineages of these species diverged nearly 2 million years ago, which confirms the taxonomic validity of O. chankaensis. Taking into account the ecological specificity of O. chankaensis and the present-day distribution range of O. oxyphylla, it can be assumed that they descended from one ancestral maternal lineage that gave rise to the species of the section Baicalia. DOI: 10.1134/S1022795411110032