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首页> 外文期刊>Acta botanica sinica >Molecular Phylogeny of Section Parrya of Pinus (Pinaceae) Based on Chloroplast matK Gene Sequence Data
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Molecular Phylogeny of Section Parrya of Pinus (Pinaceae) Based on Chloroplast matK Gene Sequence Data

机译：基于叶绿体matK基因序列数据的松果科植物Parrya的分子系统发育

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摘要

The molecular phylogenetics of sect. Parrya Myre of Pinus L. was analyzed based on chloroplast matK gene sequence data. The section was resolved as paraphyletic because members of the sect. Strobus were nested within a clade composed by the Asian members of the section, including the Vietnamese P. krempfii Lecomte, which was strongly supported with a bootstrap value of 92%. In this topology, the three sampled species of sect. Strobus formed a strongly supported monophyletic group, while their relationships of Asian species of sect. Parrya were not clear. P. krempfii was grouped with P. gerardiana Wall. ex D. Don with low bootstrap support. The relationships among the Asian members of the sect Parrya, i.e. P. bungeana Zucc. ex Loud., P. gerardiana and the recently described endangered pine, P. squamata X. W. Li, was not resolved, although the monophyly of the three pines was strongly supported in the combined analysis of four cpDNA sequences. The topology of the neighbor joining tree revealed an assemblage of the American members of the section, which also appeared in the majority rule tree with weak bootstrap support. However, this assemblage was not resolved in the consensus tree of the parsimonious analysis. The American subsect. Balfourianae Engelm. formed a weakly supported group including P. aristata Engelm., while the relationships among and within the other two American subsections, Cembroides Englem. and Rzedowskianae Carv., were not resolved, as the members of them formed a polytomy in the consensus tree of the parsimonious analysis. The biogeographical implications of the results are also discussed in this paper.
机译：宗派的分子系统发育。基于叶绿体matK基因序列数据分析了Pinus L.的Parrya Myre。由于该教派的成员，该部分被确定为是近亲的。 Strobus嵌套在该节的亚洲成员组成的进化枝中，其中包括越南人P. krempfii Lecomte，其自举率达到92％。在这种拓扑中，这是三个样本的宗派。 Strobus形成了一个受大力支持的单系群体，而它们之间的关系属于亚洲教派。 Parrya不清楚。 P. krempfii与P. gerardiana Wall分组。前D. Don的引导程序支持较低。帕里（Parrya）教派的亚洲成员之间的关系，即P. bungeana Zucc。尽管在四个cpDNA序列的组合分析中大力支持了三个松树的单性，但仍未解决来自大声的Gerardiana，最近描述的濒临灭绝的松树鳞茎X. W. Li的问题。邻居连接树的拓扑结构显示了该部分的美国成员的集合，这些成员也出现在引导规则支持较弱的多数规则树中。但是，这种组合在简约分析的共识树中没有得到解决。美国分部。 Balfourianae Engelm。组成了一个包括P. aristata Engelm。在内的弱支持团体，而其他两个美国分部Cembroides Englem之间和内部的关系。 Rzedowskianae Carv。和Rzedowskianae Carv。尚未解决，因为他们的成员在简约分析的共识树中形成了一个多义词。本文还讨论了结果的生物地理意义。

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