Molecular phylogenetics of the sexually deceptive orchid genus Ophrys (Orchidaceae) based on nuclear and chloroplast DNA sequences.
Molecular phylogenetics of the sexually deceptive orchid genus Ophrys (Orchidaceae) based on nuclear and chloroplast DNA sequences.
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基于核和叶绿体 DNA 序列的性欺骗兰花属 Ophrys（兰科）的分子系统发育。
DOI：
10.1006/mpev.2001.0953
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发表时间：
2001
影响因子：
4.1
通讯作者：
Alex Widmer
中科院分区：
文献类型：
--
作者：
Marco Soliva;A. Kocyan;Alex Widmer
基于核糖体（nr） DNA（内部转录间隔区）和非编码叶绿体（cp） DNA （trnL-trnF区）序列，对性欺骗兰花属的主要谱系进行了系统发育分析。nrDNA和cpDNA序列在大鼠主要世系内和世系间的序列差异均较低。单独的分析得出了相似但分辨率较差的树。不一致长度差异检验显示nrDNA和cpDNA数据集不一致。一项综合分析得出了一个更好地解决了大鼠主要谱系之间关系的系统发育假说。我们的数据有力地支持将Ophrys分为两类。这些组不符合先前提出的Euophrys和pseudoophrys部分，因此与传统分类相冲突。我们的研究结果支持一个很好的单系群，包括地理上广泛分布的O. bombyliflora， O. speculum， O. tenthredinifera和O. fusca-lutea谱系。另一组的关系解决得很糟糕。根据我们的观察，具有相同序列的分类群可能在快速进化的位点上明显不同的花形态，我们假设，在这个兰花谱系中，奥弗瑞属的多样性是最近辐射的结果。
We present a phylogenetic analysis of the major lineages of the sexually deceptive orchid genus Ophrys based on nuclear ribosomal (nr) DNA (internal transcribed spacer region) and noncoding chloroplast (cp) DNA (trnL-trnF region) sequences. Sequence divergence within and among major Ophrys lineages was low for both nrDNA and cpDNA sequences. Separate analyses resulted in similar but poorly resolved trees. An incongruence length difference test revealed that nrDNA and cpDNA data sets were not incongruent. A combined analysis resulted in a better-resolved phylogenetic hypothesis of relationships among the major Ophrys lineages. Our data strongly support a division of Ophrys into two groups. These groups do not correspond to the earlier proposed sections Euophrys and Pseudophrys and are thus in conflict with traditional classifications. Our results support a well-resolved monophyletic group that contains the geographically widespread O. bombyliflora, O. speculum, O. tenthredinifera, and the O. fusca-lutea lineage. Relationships in the other group are poorly resolved. Based on our observations that taxa with identical sequences at presumably rapidly evolving loci clearly differ in floral morphology, we hypothesize that the diversity in the genus Ophrys is the result of a recent radiation in this orchid lineage.
影响因子：
11.4
作者：
SHINOZAKI, K;OHME, M;SUGIURA, M
通讯作者：
SUGIURA, M