A PHYLOGENETIC ANALYSIS OF THE AUREOID SENECIO (ASTERACEAE) COMPLEX BASED ON ITS SEQUENCE DATA

被引：54

作者：

BAIN, JF ^{[1
]}

JANSEN, RK ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT BOT,AUSTIN,TX 78713

来源：

PLANT SYSTEMATICS AND EVOLUTION | 1995年 / 195卷 / 3-4期

关键词：

ASTERACEAE; SENECIONEAE; SENECIO; AUREOID COMPLEX; PACKERA; INTERNAL TRANSCRIBED SPACER (ITS); SYSTEMATICS;

D O I：

10.1007/BF00989297

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The internal transcribed spacer region of the 18S-25S nuclear ribosomal DNA repeat was sequenced from 28 populations of the aureoid Senecio complex as well as two populations from the Lugentes group and one from the Tephroseroid group. Divergence levels for populations within the aureoid complex are very low (0.0 to 4.1%). Phylogenetic trees generated from the sequence data provide no support for the recognition of Aurei, Tomentosi and Lobati subgroups within the aureoid complex. With two Lugentes and one Tephroseroid species as outgroups, Senecio glabellus is the sister group of the rest of the aureoids. The high level of divergence between the aureoids and the three outgroup species indicates that the Lugentes and the Tephroseroids may not be closely related to the aureoids.

引用

页码：209 / 219

页数：11

共 38 条

[1]

BAIN JF, 1988, RHODORA, V90, P277

[2] A COMPARISON OF THE POLLEN WALL ULTRASTRUCTURE OF AUREOID AND NON-AUREOID SENECIO SPECIES (ASTERACEAE) IN NORTH-AMERICA [J].