PHYLOGENETIC-RELATIONSHIPS BETWEEN JUNCACEAE AND CYPERACEAE - INSIGHTS FROM RBCL SEQUENCE DATA

被引：37

作者：

PLUNKETT, GM ^{[1
]}

SOLTIS, DE ^{[1
]}

SOLTIS, PS ^{[1
]}

BROOKS, RE ^{[1
]}

机构：

[1] BLACK & VEATCH CONSULTING ENGINEERS, KANSAS CITY, MO 64114 USA

来源：

AMERICAN JOURNAL OF BOTANY | 1995年 / 82卷 / 04期

关键词：

D O I：

10.2307/2445700

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Among the commelinid monocots, phylogenetic relationships involving Juncaceae and Cyperaceae have been difficult to resolve because of parallel and convergent evolution of morphological features. Using comparative sequencing of the chloroplast gene rbcL, hypotheses of relationships between these two families were tested. Sequences from 13 taxa were obtained for this study and analyzed using parsimony with 15 previously published sequences. Results of this analysis suggest that two genera of Juncaceae, Oxychloe and Prionium, are not closely related to the other genera of this family. Further, Cyperaceae appear to be more closely related to Juncaceae than to Poaceae, with which Cyperaceae are sometimes classified. In fact, Cyperaceae appear to be derived from within Juncaceae. The progenitor-derivative relationship of Juncaceae and Cyperaceae suggested by this study reveals an additional example of paraphyletic families which presents a series of taxonomic dilemmas.

引用

页码：520 / 525

页数：6

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