Relationships within Blumea (Inuleae, Asteraceae) and the utility of the 5S-NTS in species-level phylogeny reconstruction

被引：14

作者：

Pornpongrungrueng, Pimwadee ^{[1
]}

Borchsenius, Finn ^{[1
]}

Gustafsson, Mats H. G. ^{[1
]}

机构：

[1] Univ Aarhus, Dept Biol Sci, Herbarium, DK-8000 Aarhus C, Denmark

来源：

TAXON | 2009年 / 58卷 / 04期

关键词：

5S-NTS; Asteraceae; Blumea; ITS; molecular; phylogeny; psbA-trnH; trnL-F; NUCLEAR RIBOSOMAL DNA; NONCODING REGIONS; SPACER; EVOLUTION; SEQUENCES; GENES; RDNA; SYSTEMATICS; CHARACTERS; RUBIACEAE;

D O I：

10.1002/tax.584011

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

In an attempt to improve the phylogenetic resolution in clades of the genus Blumea beyond what could be achieved with sequence data from plastid regions (trnL-F, psbA-trnH) and ITS, the 5S-NTS (non-transcribed spacer) was sequenced as it has been reported to show higher levels of variation than the former regions. 5S-NTS yields a tree less resolved than ITS and the plastid regions; the latter markers, moreover, provided more resolution at deeper nodes. When combined with ITS and plastid sequences, 5S-NTS adds very little resolution. The results indicate that previously published, morphology-based sectional classifications of the genus are highly unnatural. The three varieties of B. hieraciifolia belong to different clades and should be treated as different species.

引用

页码：1181 / 1193

页数：13