MOLECULAR CONSIDERATIONS IN THE TYLOPHORINAE K. SCHUM. ( APOCYNACEAE-ASCLEPIADOIDEAE )
MOLECULAR CONSIDERATIONS IN THE TYLOPHORINAE K. SCHUM. ( APOCYNACEAE-ASCLEPIADOIDEAE )
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Tylophorinae K. SCHUM 的分子考虑。
DOI：
10.1017/s0960428602000239
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
J. Schneidt
中科院分区：
文献类型：
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作者：
S. Liede;A. Täuber;J. Schneidt
本文分析了来自其地理分布区的30多个标本，以及除Rhynchardella外的所有其他属的代表标本。对叶绿体基因组（trn T-L间隔区、trn L内含子和trn L-F间隔区）以及核基因组（包括核核糖体DNA的5.8S的内转录间隔区）的区域进行测序。cpDNA数据集和rDNA数据集都产生了许多稳定的进化枝，但是单独或通过组合它们都不能获得完全解析和稳定的进化枝。东非和阿拉伯的小属Blyttia，Diplostigma，Goydera和Pleurostelma在这两个数据集中形成了一个很好的支持分支。Pentatropis一直被认为是单系的。该属不能与娃儿藤属明确区分，可能包括温带物种，而娃儿藤属则包括热带和亚热带物种。
More than 30 collections of Tylophora from all over its geographic range were analysed together with representatives of all other genera in subtribe Tylophorinae except Rhyncharrhena . Regions of the chloroplast genome ( trn T-L spacer, trn L intron and trn L-F spacer) as well as the nuclear genome (internal transcribed spacer including 5.8S of nuclear ribosomal DNA) were sequenced. Both the cpDNA dataset and the rDNA dataset yield a number of stable clades, but a completely resolved and stable phylogeny is not obtained from either alone or by combining them. The small East African and Arabian genera Blyttia, Diplostigma, Goydera and Pleurostelma form a well-supported clade in both datasets. Pentatropis is always recognized as monophyletic. Vincetoxicum is not clearly separable from Tylophora , and probably covers the temperate species, while Tylophora covers those in the tropics and subtropics.