Phylogenetic relationships among annual and perennial species of the genus Cicer as inferred from ITS sequences of nuclear ribosomal DNA

被引：8
|
作者：
Frediani, M
Caputo, P
机构：
[1] Univ Tuscia, Dipartimento Agrobiol & Agrochim, I-01100 Viterbo, Italy
[2] Univ Naples Federico II, Dipartimento Biol Vegetale, I-80139 Naples, Italy
来源：
BIOLOGIA PLANTARUM | 2005年 / 49卷 / 01期
关键词：
DNA sequences; ribosomal cistrons;
D O I：
10.1007/s10535-005-7052-1
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The cladistic analysis of the DNA sequences of the internal transcribed spacers of ribosomal cistrons (ITS1 and ITS2) for 20 species of Cicer L. (among which all the annuals), shows that various sections of the genus are not monophyletic. Annual species do not form a clade: C. arietinum, in fact, is closely related to both C. echinospermum and C. reticulatum, whereas C. bijugum, C. judaicum, and C. pinnatifidum form a separate clade. The annual C. cuneatum is sister group to the perennial C. canariense and both are archaic species within the genus. C. yamashitae is, on the contrary, the only annual species belonging to a group of perennials, within which close relationships are evident between C. graecum and C. montbretii as well as among a group of mainly Asian species.
引用
收藏
页码：47 / 52
页数：6
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