Phylogenetics of Bauhinia subgenus Phanera (Leguminosae: Caesalpinioideae) based on ITS sequences of nuclear ribosomal DNA

被引：0

作者：

Hao, G ^{[1
]}

Zhang, DX ^{[1
]}

Zhang, MY ^{[1
]}

Guo, LX ^{[1
]}

Li, SJ ^{[1
]}

机构：

[1] Chinese Acad Sci, S China Inst Bot, Guangzhou 510650, Peoples R China

来源：

BOTANICAL BULLETIN OF ACADEMIA SINICA | 2003年 / 44卷 / 03期

关键词：

Bauhinia; Caesalpinioideae; ITS; Leguminosae; phylogenetic analysis; subgen; Phanera;

D O I：

暂无

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The pantropical legume genus Bauhinia is currently subdivided into four subgenera. Subgenus Phanera, with ca. 150 species, is the largest. A parsimony analysis was conducted on ITS sequence data from 38 species, with representatives from all four subgencra, and species sampled from nine of I I sections of subgen. Phanera, and including two Cercis species as the outgroup. The well-resolved strict consensus tree suggests that subgen. Phanera and the monotypic subgen. Barklya together form a monophyletic group. In the Phanera-Barklya clade, the African (sect. Tylosema), American (sect. Caulotretus), and Australasian (subgen. Barklya, subgen. Phanera sect. Lysiphyllum) species are the first (paraphyletic) lineages, while the Asian taxa (except species of sect. Lysiphyllum) form a monophyletic group. The ITS tree also revealed that sects. Phanera and Lasiobema are not monophyletic. Monophyletic groups supported by the phylogenetic analysis include ser. Fulvae and ser. Corymbosae of sect. Phanera, sect. Tubicalyx, and the Asian-Australasian sect. Lysiphyllum.

引用

页码：223 / 228

页数：6

共 28 条

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