Title |
Mitochondrial matR sequences help to resolve deep phylogenetic relationships in rosids
|
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Published in |
BMC Ecology and Evolution, November 2007
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DOI | 10.1186/1471-2148-7-217 |
Pubmed ID | |
Authors |
Xin-Yu Zhu, Mark W Chase, Yin-Long Qiu, Hong-Zhi Kong, David L Dilcher, Jian-Hua Li, Zhi-Duan Chen |
Abstract |
Rosids are a major clade in the angiosperms containing 13 orders and about one-third of angiosperm species. Recent molecular analyses recognized two major groups (i.e., fabids with seven orders and malvids with three orders). However, phylogenetic relationships within the two groups and among fabids, malvids, and potentially basal rosids including Geraniales, Myrtales, and Crossosomatales remain to be resolved with more data and a broader taxon sampling. In this study, we obtained DNA sequences of the mitochondrial matR gene from 174 species representing 72 families of putative rosids and examined phylogenetic relationships and phylogenetic utility of matR in rosids. We also inferred phylogenetic relationships within the "rosid clade" based on a combined data set of 91 taxa and four genes including matR, two plastid genes (rbcL, atpB), and one nuclear gene (18S rDNA). |
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