Molecular phylogeny and biogeography of Gentiana sect. Cruciata (Gentianaceae) based on four chloroplast DNA datasets
文献类型：期刊论文
| 作者 | Zhang, Xiao-Lan2,4; Wang, Yu-Jin1; Ge, Xue-Jun2; Yuan, Yong-Ming2; Yang, Hui-Ling3; Liu, Jian-Quan1,3 |
| 刊名 | taxon
 |
| 出版日期 | 2009-08-01 |
| 卷号 | 58期号:3页码:862-870 |
| 关键词 | alpine plants biogeography diversification Eurasia Gentiana sect. Cruciata phylogeny |
| ISSN号 | 0040-0262 |
| 中文摘要 | gentiana sect. cruciata is mainly found on alpine mountains across eurasia, with the greatest species diversity occurring on the qinghai-tibetan plateau (qtp). in this study, we determined the phylogenetic relationships between species within the cruciata section to further elucidate the biogeographical processes governing these relationships. phylogenetic reconstructions, based on both parsimony and bayesian methods, were applied to data from four cpdna fragments (>3,000 bp) that were obtained for 39 accessions belonging to cruciata and related sections or outgroups. our results suggested that all the species sampled within this section comprise a monophyletic group, but rejected all previous hypotheses regarding intra-sectional classifications based on gross morphology. five clades were identified. the basal clade comprised three species that were endemic to the qtp. the clade that diverged second comprised three central asian species. the european clade, containing only g. cruciata, was grouped with the remaining two clades containing species from the qtp and central asia. the biogeographic analyses and divergence estimates suggested that this section diversified initially on the qtp within four million years. given the low genetic differentiation, most species/clades may be the result of more recent differentiation. these results together confirmed the long-standing hypothesis that alpine plants in central asia and europe originated from the qtp and/or west china and diversified extensively after the pliocene when global temperatures decreased. |
| 英文摘要 | gentiana sect. cruciata is mainly found on alpine mountains across eurasia, with the greatest species diversity occurring on the qinghai-tibetan plateau (qtp). in this study, we determined the phylogenetic relationships between species within the cruciata section to further elucidate the biogeographical processes governing these relationships. phylogenetic reconstructions, based on both parsimony and bayesian methods, were applied to data from four cpdna fragments (>3,000 bp) that were obtained for 39 accessions belonging to cruciata and related sections or outgroups. our results suggested that all the species sampled within this section comprise a monophyletic group, but rejected all previous hypotheses regarding intra-sectional classifications based on gross morphology. five clades were identified. the basal clade comprised three species that were endemic to the qtp. the clade that diverged second comprised three central asian species. the european clade, containing only g. cruciata, was grouped with the remaining two clades containing species from the qtp and central asia. the biogeographic analyses and divergence estimates suggested that this section diversified initially on the qtp within four million years. given the low genetic differentiation, most species/clades may be the result of more recent differentiation. these results together confirmed the long-standing hypothesis that alpine plants in central asia and europe originated from the qtp and/or west china and diversified extensively after the pliocene when global temperatures decreased. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | plant sciences ; evolutionary biology |
| 研究领域[WOS] | plant sciences ; evolutionary biology |
| 关键词[WOS] | quaternary diversification ; intergenic regions ; universal primers ; ribosomal dna ; alpine plants ; f sequences ; genus ; asteraceae ; evolution ; amplification |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000269774900014 |
| 公开日期 | 2011-12-13 |
| 源URL | [http://ir.nwipb.ac.cn//handle/363003/1838]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Lanzhou Univ, Sch Life Sci, Lab Arid & Grassland Ecol, Inst Mol Ecol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, S China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China 3.Chinese Acad Sci, NW Plateau Inst Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China 4.Guangdong Acad Agr Sci, Crops Res Inst, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiao-Lan,Wang, Yu-Jin,Ge, Xue-Jun,et al. Molecular phylogeny and biogeography of Gentiana sect. Cruciata (Gentianaceae) based on four chloroplast DNA datasets[J]. taxon,2009,58(3):862-870. |
| APA | Zhang, Xiao-Lan,Wang, Yu-Jin,Ge, Xue-Jun,Yuan, Yong-Ming,Yang, Hui-Ling,&Liu, Jian-Quan.(2009).Molecular phylogeny and biogeography of Gentiana sect. Cruciata (Gentianaceae) based on four chloroplast DNA datasets.taxon,58(3),862-870. |
| MLA | Zhang, Xiao-Lan,et al."Molecular phylogeny and biogeography of Gentiana sect. Cruciata (Gentianaceae) based on four chloroplast DNA datasets".taxon 58.3(2009):862-870. |
入库方式： OAI收割
来源：西北高原生物研究所
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