Molecular phylogeny of monocotyledons inferred from combined analysis of plastid matK and rbcL gene sequences
Molecular phylogeny of monocotyledons inferred from combined analysis of plastid matK and rbcL gene sequences
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DOI：
10.1007/s10265-003-0133-3
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发表时间：
2004-01
影响因子：
2.8
通讯作者：
M. Tamura;J. Yamashita;S. Fuse;Masatake Haraguchi
中科院分区：
文献类型：
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作者：
M. Tamura;J. Yamashita;S. Fuse;Masatake Haraguchi
利用来自45科113属的matKandrbcL序列（共3, 269 bp），我们对单子叶植物的主要进化关系进行了综合分析。从简约性分析产生的树是类似于早期的单或多基因分析产生的，但其严格的共识树提供了更好的解决方案之间的关系主要分支。我们发现，菖蒲（菖蒲目）是一个姐妹群的其余单子叶植物，这得到100%的自助支持。一个包含泽泻目的分支作为下一个分支分叉，随后依次是油桐科、菊科-露兜目分支、百合目、天冬目和鸭茅科。所有这些进化枝都得到了强有力的支持（超过90%的自举支持）。泽泻目与其它单子叶植物（菖蒲除外）、油桐科与其它单子叶植物（菖蒲和泽泻目除外）、铃兰目和露兜目与百合目、天门冬目和鸭茅类的亲缘关系也分别为100%、87%和89%。只有芦笋目和鸭茅类之间的姐妹群关系得到弱支持（68%）。结果也支持包括在其自己的目的Petrosaviales，Nartheciaceae在菊科和Hanguanaceae在鸭跖草目Petrosaviales。
UsingmatKandrbcLsequences (3,269 bp in total) from 113 genera of 45 families, we conducted a combined analysis to contribute to the understanding of major evolutionary relationships in the monocotyledons. Trees resulting from the parsimony analysis are similar to those generated by earlier single or multiple gene analyses, but their strict consensus tree provides much better resolution of relationships among major clades. We find thatAcorus(Acorales) is a sister group to the rest of the monocots, which receives 100% bootstrap support. A clade comprising Alismatales is diverged as the next branch, followed successively by Petrosaviaceae, the Dioscoreales–Pandanales clade, Liliales, Asparagales and commelinoids. All of these clades are strongly supported (with more than 90% bootstrap support). The sister-group relationship is also strongly supported between Alismatales and the remaining monocots (except forAcorus) (100%), between Petrosaviaceae and the remaining monocots (except forAcorusand Alismatales) (100%), between the clade comprising Dioscoreales and Pandanales and the clade comprising Liliales, Asparagales and commelinoids (87%), and between Liliales and the Asparagales–commelinoids clade (89%). Only the sister-group relationship between Asparagales and commelinoids is weakly supported (68%). Results also support the inclusion of Petrosaviaceae in its own order Petrosaviales, Nartheciaceae in Dioscoreales and Hanguanaceae in Commelinales.