Molecular phylogeny and taxonomy of the genus Lamium L. (Lamiaceae): Disentangling origins of presumed allotetraploids
Molecular phylogeny and taxonomy of the genus Lamium L. (Lamiaceae): Disentangling origins of presumed allotetraploids
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DOI：
10.1002/tax.604004
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发表时间：
2011-08-01
期刊：
影响因子：
3.4
通讯作者：
Ryding, Olof
中科院分区：
文献类型：
--
作者：
Bendiksby, Mika;Brysting, Anne K.;Ryding, Olof
利用核（NRPA2, 5S-NTS）和叶绿体（matK, psbA-trnH, rps16, trnL, trnL- f, trnS-G） DNA序列数据，研究了系统发育关系和异体多倍体的形成。细胞核和叶绿体数据不一致，细胞核数据与形态有较好的相关性。贝叶斯和简约系统发育结果表明：(1)galeobdolon是所有现存Lamium种的姊妹种；(2) Wiedemannia嵌套在Lamium内；(3)大穗扁豆具有多系性；(4)大多数四倍体是杂交起源；(5)大穗扁豆为异源四倍体；(6) Mennema（1989）的红外分类没有得到分子数据的证实。基于分子结果，并考虑到形态学，我们建议复活两个物种：L. aleppicum和L. paczoskianum。
This is the first comprehensive molecular investigation of the genus Lamium L. We have addressed phylogenetic relationships and presumed allopolyploid speciation by use of nuclear (NRPA2, 5S-NTS) and chloroplast (matK, psbA-trnH, rps16, trnL, trnL-F, trnS-G) DNA sequence data. Nuclear and chloroplast data were incongruent, and nuclear data showed better correlation with morphology. Bayesian and parsimony phylogenetic results show that (I) Lamium galeobdolon is sister to all remaining Lamium species; (2) Wiedemannia is nested within Lamium; (3) L. amplexicaule is polyphyletic; (4) most tetraploids are of hybrid origin; (5) L. amplexicaule var. orientale is allotetraploid; and (6) Mennema's (1989) infrageneric classification is not corroborated by molecular data. Based on the molecular results, and taking morphology into account, we suggest resurrection of two species: L. aleppicum and L. paczoskianum.