Towards a comprehensive phylogeny of the large temperate genus Pedicularis (Orobanchaceae), with an emphasis on species from the Himalaya-Hengduan Mountains.
Towards a comprehensive phylogeny of the large temperate genus Pedicularis (Orobanchaceae), with an emphasis on species from the Himalaya-Hengduan Mountains.
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大型温带马先蒿属（列当科）的全面系统发育，重点关注喜马拉雅-横断山脉的物种
DOI：
10.1186/s12870-015-0547-9
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发表时间：
2015-07-11
影响因子：
5.3
通讯作者：
Li DZ
中科院分区：
文献类型：
--
作者：
Yu WB;Liu ML;Wang H;Mill RR;Ree RH;Yang JB;Li DZ
背景：大温带马先蒿属植物的花卉性状在种间的显著差异引起了关于属下分类的争议。到目前为止，该属内的系统发育关系尚未得到很好的解决。这项研究的主要目的是通过对喜马拉雅-横断山区物种的广泛采样，构建马先蒿的系统发育。系统发育分析包括257种，代表宗氏分类系统中的全部13个非正式类群和130个系列中的104个，利用核糖体内部转录间隔区(NrITS)和三个叶绿体区域(matK、rbcL和trnL-F)的序列进行分析。使用贝叶斯推理和最大似然法对这些数据集进行了单独和组合分析。结果：13个主要分支在强大的支持下得到了解析，尽管树的主干解析得很差。在系统发育树和宗氏马先属的分类之间，几乎没有一致意见。13个类群中只有2个(15.4%)和56个系列中的19个(33.9%)被发现是严格的单系。大多数对生/轮生叶物种属于一个单一的分支，即分支1，而互生叶物种则出现在其余的12个分支中。排除了广泛存在于分支1中的马先蒿，来自欧洲和北美的物种被归入6-8个支系。结论：我们的结果表明，需要结合与强支持支系相关的形态和地理特征来阐明马先蒿的全球系统发育。互生叶在马先蒿属中被推测为半形性，具有向对生/轮生叶序的多次过渡。互生叶植物在植物习性和花型上表现出高度的多样性。在喜马拉雅-横断山区，地理障碍可能促进了具有长花冠管的物种的多样化，而对生/轮生叶物种中无喙Galeas的繁殖优势可能会促进高海拔物种的物种形成。
Background:Striking interspecific variations in floral traits of the large temperate genus Pedicularis have given rise to controversies concerning infra-generic classifications. To date, phylogenetic relationships within the genus have not been well resolved. The main goal of this study is to construct a backbone phylogeny of Pedicularis, with extensive sampling of species from the Himalaya-Hengduan Mountains. Phylogenetic analyses included 257 species, representing all 13 informal groups and 104 out of 130 series in the classification system of Tsoong, using sequences of the nuclear ribosomal internal transcribed spacer (nrITS) and three plastid regions (matK, rbcL and trnL-F). Bayesian inference and maximum likelihood methods were applied in separate and combined analyses of these datasets.Results:Thirteen major clades are resolved with strong support, although the backbone of the tree is poorly resolved. There is little consensus between the phylogenetic tree and Tsoong's classification of Pedicularis. Only two of the 13 groups (15.4 %), and 19 of the 56 series (33.9 %) with more than one sampled species were found to be strictly monophyletic. Most opposite-/whorled-leaved species fall into a single clade, i.e. clade 1, while alternate leaves species occur in the remaining 12 clades. Excluding the widespread P. verticillata in clade 1, species from Europe and North America fall into clades 6-8.Conclusions:Our results suggest that combinations of morphological and geographic characters associated with strongly supported clades are needed to elucidate a comprehensive global phylogeny of Pedicularis. Alternate leaves are inferred to be plesiomorphic in Pedicularis, with multiple transitions to opposite/whorled phyllotaxy. Alternate-leaved species show high diversity in plant habit and floral forms. In the Himalaya-Hengduan Mountains, geographical barriers may have facilitated diversification of species with long corolla tubes, and the reproductive advantages of beakless galeas in opposite-/whorled-leaved species may boost speciation at high altitude.
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影响因子：
10.7
作者：
Kolaczkowski, Bryan;Thornton, Joseph W.
通讯作者：
Thornton, Joseph W.
DOI：
10.1093/bioinformatics/bts199
发表时间：
2012-06-15
期刊：
Bioinformatics (Oxford, England)
影响因子：
--
作者：
Kearse M;Moir R;Wilson A;Stones-Havas S;Cheung M;Sturrock S;Buxton S;Cooper A;Markowitz S;Duran C;Thierer T;Ashton B;Meintjes P;Drummond A
通讯作者：
Drummond A
影响因子：
5.9
作者：
ERIKSEN, B;MOLAU, U;SVENSSON, M
通讯作者：
SVENSSON, M
影响因子：
14.9
作者：
Katoh K;Kuma K;Toh H;Miyata T
通讯作者：
Miyata T
特殊的花朵会促进生殖隔离吗？
影响因子：
4.2
作者：
Armbruster, W. Scott;Shi, Xiao-Qing;Huang, Shuang-Quan
通讯作者：
Huang, Shuang-Quan