Phylogenetic studies of the core Alismatales inferred from morphology and rbcL sequences
Phylogenetic studies of the core Alismatales inferred from morphology and rbcL sequences作者机构：[a]Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China
出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))
年 卷 期：2009年第19卷第8期
页 面：931-945页
核心收录：
学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学]
基 金：supported by National Natural Science Foundation of China (Grant No. 30800062) theNational Basic Research Program of China (Grant No.2007CB411601)
主 题：Alismatales Morphological phylogeny rbcL sequences Cymodoceaceae complex Najadaceae Hydrocharitaceae
摘 要：The phylogeny of Alismatales remains an area of deep uncertainty, with different arrangements being found in studies that examined various subsets of genes and taxa. Herein we conducted separate and combined analyses of 103 morphological characters and 52 rbcL sequences to explore the controversial phylogenies of the families. Congruence between the two data sets was explored by computing several indices. Morphological data sets contain poor phylogenetic signals. The homology of morphological characters was tested based on the total evidence of phylogeny. The incongruence between DNA and morphological results; the hypothesis of the ‘Cymodoceaceae complex’; the relationships between Najadaceae and Hydrocharitaceae; the intergeneric relationships of Hydrocharitaceae; and the evo- lutionary convergence of morphological characters were analyzed and discussed.
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