Molecular relationships within mosses based on 18S rRNA gene sequences

被引：0
|
作者：
Capesius, I [1 ]
Stech, M [1 ]
机构：
[1] FREE UNIV BERLIN,INST SYSTEMAT BOT & PFLANZENGEOG,D-14195 BERLIN,GERMANY
来源：
NOVA HEDWIGIA | 1997年 / 64卷 / 3-4期
关键词：
18S rRNA; sequence analysis; molecular relationships; Bryophyta; mosses;
D O I：
暂无
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Complete 18S rRNA gene sequences from 19 mosses (2 Sphagnidae, 17 Bryidae) were determined, fitted into an alignment and used to construct ''polygenetic'' trees according to the maximum parsimony principle and the neighbour-joining method. The cladistic analysis of the molecular data allows three definite statements: 1. The Sphagnidae are a sister group to the Bryidae. 2. Within the Bryidae, the Polytrichales and Funariales are clearly separated. 3. Orthotrichum does not belong to the Hypnobryanae, which are paraphylectic. The other Bryidae cannot be separated completeley because of too similar sequences, indicating that these mosses are evolutionary younger.
引用
收藏
页码：525 / 533
页数：9
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