ITS sequence data resolve higher level relationships among the eucalypts

被引：64

作者：

Steane, DA ^{[1
]}

McKinnon, GE ^{[1
]}

Vaillancourt, RE ^{[1
]}

Potts, BM ^{[1
]}

机构：

[1] Univ Tasmania, Sch Plant Sci, Cooperat Res Ctr Sustainable Prod Forestry, Hobart, Tas 7001, Australia

来源：

MOLECULAR PHYLOGENETICS AND EVOLUTION | 1999年 / 12卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1006/mpev.1999.0612

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：

Sequences of the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA were obtained for 35 species of Eucalyptus s.s. and seven taxa representing five outgroup genera (Allosyncarpia, Angophora, Arillastrum, Corymbia, and Stockwellia). The sequences were analyzed cladistically. The data distinguished clearly between the two major subgenera of Eucalyptus s.s. (Symphyomyrtus and Monocalyptus) but indicated that subgenus Eudesmia may be paraphyletic. ITS sequence data demonstrated the potential to resolve relationships between sections within subgenus Symphyomyrtus. Within sections, however, taxa were poorly differentiated. At the generic level, Corymbia appeared to be paraphyletic due to the exclusion of Angophora. The positions of Allosyncarpia and Arillastrum relative to the ingroup remain unresolved. ITS sequence data may prove valuable for resolving other phylogenetic relationships at higher taxonomic levels within Eucalyptus. (C) 1999 Academic Press.

引用

页码：215 / 223

页数：9

共 38 条

[1] MOLECULAR PHYLOGENETICS OF CALYCADENIA (COMPOSITAE) BASED ON ITS SEQUENCES OF NUCLEAR RIBOSOMAL DNA - CHROMOSOMAL AND MORPHOLOGICAL EVOLUTION REEXAMINED [J].