Phylogeography of North American populations of the moss species Hylocomium sylendens based on the nucleotide sequence of internal transcribed spacer 2 of nuclear ribosomal DNA

被引：74

作者：

Chiang, TY ^{[1
]}

Schaal, BA

机构：

[1] Natl Cheng Kung Univ, Dept Biol, Tainan 701, Taiwan

[2] Washington Univ, Dept Biol, St Louis, MO 63130 USA

来源：

MOLECULAR ECOLOGY | 1999年 / 8卷 / 06期

关键词：

Hylocomium splendens; internal transcribed spacer; minimum spanning network; monophyly; phylogeography; populations; ribosomal DNA;

D O I：

10.1046/j.1365-294x.1999.00668.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Sequence variation of the internal transcribed sequence 2 (ITS2) region of nuclear ribosomal DNA (nrDNA) was investigated in 10 North American populations of Hylocomium splendens. Cladistic analyses supported the monophyly of this moss species, rooted at Hylocomiastrum and Neodolichomitra. Three geographically based groups (Great Lakes Forest, Appalachian Mountains, and Pacific Northwest) were identified by a minimum spanning network. Significant genetic differentiation was detected (F-ST = 0.197 - 0.390) among three geographical regions in North America. Although high genetic divergence exists within H. splendens, these results do not suggest sufficient divergence for designating sibling species.

引用

页码：1037 / 1042

页数：6

共 33 条

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