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Molecular phylogeny and biogeography of the narrow endemic Coelonema and affinitive Draba (Brassicaceae) based on two DNA regions
Chen, Shengyun1,2,3,4; Wu, Guili5; Chen, Shilong1; Ren, Jiawen2,3; Qin, Dahe2,3
2010-08-01
发表期刊BIOCHEMICAL SYSTEMATICS AND ECOLOGY
ISSN0305-1978
卷号38期号:4页码:796-805
文章类型Article
摘要To clarify the relationship between two genera Draba and the narrow genus Coelonema endemic to the QilianMountains of the northeastern Qinghai-Tibet Plateau phylogenetic analyses were conducted using nuclear ribosomal DNA ITS and the chloroplast DNA trnL from Coelonema draboides and 30 species of Draba representing eight sections including 25 species of Chinese Draba seven of which were endemic to the study region The results unambiguously support several previously published proposals to unite Coelonema with Draba and accommodate C draboides in the latter genus on the basis of morphological re-examination Our molecular data presented here also provide evidence that these two genera should be combined as a monophyletic group with high support In addition it is estimated that Draba may have originated about 1 36-2 71 Mya with C draboides diverging from Draba about 0 15-0 31 Mya based on the molecular calibration of ITS datasets The assumed speciation and rapid expansion of these two genera is likely to have occurred in the eastern edge of the QilianMountains area according to molecular phylogeny and estimated divergence times which correspond well with the known geological and paleobotanical histories of the Qinghai-Tibet Plateau (C) 2010 Elsevier Ltd All rights reserved; To clarify the relationship between two genera Draba and the narrow genus Coelonema endemic to the QilianMountains of the northeastern Qinghai-Tibet Plateau phylogenetic analyses were conducted using nuclear ribosomal DNA ITS and the chloroplast DNA trnL from Coelonema draboides and 30 species of Draba representing eight sections including 25 species of Chinese Draba seven of which were endemic to the study region The results unambiguously support several previously published proposals to unite Coelonema with Draba and accommodate C draboides in the latter genus on the basis of morphological re-examination Our molecular data presented here also provide evidence that these two genera should be combined as a monophyletic group with high support In addition it is estimated that Draba may have originated about 1 36-2 71 Mya with C draboides diverging from Draba about 0 15-0 31 Mya based on the molecular calibration of ITS datasets The assumed speciation and rapid expansion of these two genera is likely to have occurred in the eastern edge of the QilianMountains area according to molecular phylogeny and estimated divergence times which correspond well with the known geological and paleobotanical histories of the Qinghai-Tibet Plateau (C) 2010 Elsevier Ltd All rights reserved
关键词Biogeography Coelonema Draba Its Phylogeny Trnl
WOS标题词Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]QINGHAI-TIBET PLATEAU ; METAGENTIANA-STRIATA GENTIANACEAE ; CHLOROPLAST DNA ; SEQUENCE-ANALYSIS ; ASTERACEAE ; EVOLUTION ; COMPLEX ; PHYLOGEOGRAPHY ; ORIGIN ; TREES
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS记录号WOS:000284565800044
引用统计
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/1662
专题中国科学院西北高原生物研究所
作者单位1.Chinese Acad Sci, Key Lab Adaptat & Evolut Plateau Biota, NW Inst Plateau Biol, Xining 810001, Qinghai, Peoples R China
2.Chinese Acad Sci, State Key Lab Cryospher Sci Cold & Arid Reg Envir, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Engn Res Inst, Lanzhou 730000, Peoples R China
4.Chinese Acad Sci, Qilian Shan Stn Glaciol & Ecol Environm, Yumen 735200, Peoples R China
5.Lanzhou Univ, Key Lab Arid & Grassland Ecol, Lanzhou 730000, Peoples R China
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GB/T 7714
Chen, Shengyun,Wu, Guili,Chen, Shilong,et al. Molecular phylogeny and biogeography of the narrow endemic Coelonema and affinitive Draba (Brassicaceae) based on two DNA regions[J]. BIOCHEMICAL SYSTEMATICS AND ECOLOGY,2010,38(4):796-805.
APA Chen, Shengyun,Wu, Guili,Chen, Shilong,Ren, Jiawen,&Qin, Dahe.(2010).Molecular phylogeny and biogeography of the narrow endemic Coelonema and affinitive Draba (Brassicaceae) based on two DNA regions.BIOCHEMICAL SYSTEMATICS AND ECOLOGY,38(4),796-805.
MLA Chen, Shengyun,et al."Molecular phylogeny and biogeography of the narrow endemic Coelonema and affinitive Draba (Brassicaceae) based on two DNA regions".BIOCHEMICAL SYSTEMATICS AND ECOLOGY 38.4(2010):796-805.
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