Molecular phylogeny of Solms-laubachia (Brassicaceae) s.l., based on multiple nuclear and plastid DNA sequences, and its biogeographic implications
文献类型：期刊论文
| 作者 | Yue, Ji-Pei1,2; Sun, Hang2 ; Baum, David A.3; Li, Jian-Hua; Al-Shehbaz, Ihsan A.4; Ree, Richard1
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| 刊名 | JOURNAL OF SYSTEMATICS AND EVOLUTION
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| 出版日期 | 2009-09-01 |
| 卷号 | 47期号:5页码:402-415 |
| 关键词 | Biogeography Brassicaceae Hengduan Mountains Phylogeny SolmS.l.ubachia S.l. |
| ISSN号 | 0529-1526 |
| DOI | 10.1111/j.1759-6831.2009.00041.x |
| 通讯作者 | rree@fieldmuseum.org |
| 文献子类 | Article |
| 英文摘要 | The Hengduan Mountains region of south-west China is a noted biodiversity hotspot, but the geographic origins and historical assembly of its rich endemic flora, including the sky-island species of Solms-laubachia Muschl. (Brassicaceae), have been little studied. Previous molecular studies on the phylogeny of Solms-laubachia showed it to be paraphyletic, leading to considerable expansion not only of its taxonomic limits, but also its geographic range, with the inclusion of taxa from outside the Hengduan region. However, these studies provided little resolution of interspecific relationships, preventing inferences about historical biogeography within the clade. In the present study, new sequence data from two nuclear genes (LEAFY and G3pdh) and two chloroplast intergenic spacers (petN-psbM and psbM-trnD) were combined with existing markers to increase phylogenetic signals. Phaeonychium villosum (Maxim.) Al-Shehbaz was found to be nested within Solms-laubachia s.l. In general, phylogenetic relationships appear to be a good predictor of geography, with the Hengduan Mountain endemics embedded in a paraphyletic grade of species from the western Himalayas and central Asia, but they also imply morphological homoplasy. Incongruence was detected between the nuclear and chloroplast gene trees, perhaps resulting from incomplete lineage sorting of ancestral polymorphisms. The crown age of Solms-laubachia s.l. was estimated to be approximately 1.42-3.68 mya, using Bayesian relaxed molecular clock analysis. Historical biogeographic analysis using a parametric dispersal-extinction-cladogenesis model inferred central Asia and the western Himalayas as most probable ancestral range of Solms-laubachia s.l., and estimated higher rates of eastward expansion than westward during the diversification of descendant lineages. In summary, our results suggest that Solms-laubachia s.l. originated during the Pliocene in central Asia, and subsequently migrated eastward into the Hengduan Mountains, colonizing sky-island, alpine scree-slope habitats that may have provided novel ecological opportunity and accelerated speciation, ultimately establishing this region as the present center of diversity of the genus. |
| 学科主题 | Plant Sciences |
| WOS关键词 | QINGHAI-TIBETAN PLATEAU ; TRNL-F SEQUENCES ; PEDICULARIS OROBANCHACEAE ; GEOGRAPHIC RANGE ; EVOLUTION ; CHLOROPLAST ; SYSTEMATICS ; INFERENCE ; GENTIANACEAE ; PHYLOGEOGRAPHY |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000270477800006 |
| 资助机构 | Chinese National Natural Science Foundation [30625004, 40771073]; Yunnan Natural Science Foundation [2008CC013]; US National Science Foundation [DEB-0321846]; John D. and Catherine T. MacArthur Foundation ; Innovation Project of the Chinese Academy of Sciences [KSCX2-YW-Z030]; Arnold Arboretum ; National Geographic Society [7405-03] |
| 公开日期 | 2011-12-20 |
| 源URL | [http://ir.kib.ac.cn:8080/handle/151853/3008]  |
| 专题 | 昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室 |
| 作者单位 | 1.Field Museum Nat Hist, Dept Bot, Chicago, IL 60605 USA 2.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Peoples R China 3.Univ Wisconsin, Dept Bot, Madison, WI 53706 USA 4.Missouri Bot Garden, St Louis, MO 63166 USA |
| 推荐引用方式 GB/T 7714 | Yue, Ji-Pei,Sun, Hang,Baum, David A.,et al. Molecular phylogeny of Solms-laubachia (Brassicaceae) s.l., based on multiple nuclear and plastid DNA sequences, and its biogeographic implications[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2009,47(5):402-415. |
| APA | Yue, Ji-Pei,Sun, Hang,Baum, David A.,Li, Jian-Hua,Al-Shehbaz, Ihsan A.,&Ree, Richard.(2009).Molecular phylogeny of Solms-laubachia (Brassicaceae) s.l., based on multiple nuclear and plastid DNA sequences, and its biogeographic implications.JOURNAL OF SYSTEMATICS AND EVOLUTION,47(5),402-415. |
| MLA | Yue, Ji-Pei,et al."Molecular phylogeny of Solms-laubachia (Brassicaceae) s.l., based on multiple nuclear and plastid DNA sequences, and its biogeographic implications".JOURNAL OF SYSTEMATICS AND EVOLUTION 47.5(2009):402-415. |
入库方式： OAI收割
来源：昆明植物研究所
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