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Phylogeography of Haplocarpha rueppelii (Asteraceae) suggests a potential geographic barrier for plant dispersal and gene flow in East Africa
Chen LingYun1; Muchuku John K1; Yan Xue1; Hu GuangWan1; Wang QingFeng1
2015
Source PublicationSCIENCE BULLETIN
ISSN2095-9273
Volume60Issue:13Pages:1184
AbstractEast Africa is a biodiversity hotspot. Haplocarpha rueppelii (Sch.Bip.) Beauverd is mainly distributed in the alpine grassland of East Africa. Here we sampled 65 individuals of eight populations/locations of H. rueppelii including hairy and glabrous forms from Mts. Elgon, Aberdare, Kenya, Kilimanjaro and Bale Mountains. We then sequenced one nuclear and three chloroplast DNA fragments and conducted phylogeographic analyses to test the taxonomic rank of the two forms and causes for the differentiation (intrinsic reproductive isolation and geographic barrier). The results demonstrate that the species consists of two major groups, one includes the populations from Mts. Elgon, Aberdare and Bale, while the other includes Mts. Kenya and Kilimanjaro. The species has established in Mts. Kenya and Aberdare during the Pleistocene. However, migration rate for individuals between the two mountains was low as showed by gene flow analysis. A barrier for plant dispersal and gene flow would have existed between Mts. Aberdare and Kenya since at least Pleistocene. No change of the taxonomic concept of this species is needed. This study reveals a potential geographic barrier in East Africa. We hope it will arouse more scientists' interests in phylogeography and biodiversity of East Africa.
KeywordALPINE SKY ISLANDS DNA-SEQUENCES BAYES FACTORS SOFTWARE HISTORY PHYLOGENY MOUNTAINS RADIATION ORIGIN RANGE East Africa Afro-alpine Gene flow Phylogeography Taxonomy Haplocarpha rueppelii
Language英语
Funding Project[Sino-Africa Joint Research Center] ; [National Natural Science Foundation of China]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/40642
Collection其他_期刊论文
Affiliation1.Chinese Acad Science, Sino Africa Joint Res Ctr, Wuhan 430074, Peoples R China Sino Africa Joint Res Ctr
2.中国科学院水生生物研究所
3.中国科学院大学
Recommended Citation
GB/T 7714
Chen LingYun,Muchuku John K,Yan Xue,et al. Phylogeography of Haplocarpha rueppelii (Asteraceae) suggests a potential geographic barrier for plant dispersal and gene flow in East Africa[J]. SCIENCE BULLETIN,2015,60(13):1184.
APA Chen LingYun,Muchuku John K,Yan Xue,Hu GuangWan,&Wang QingFeng.(2015).Phylogeography of Haplocarpha rueppelii (Asteraceae) suggests a potential geographic barrier for plant dispersal and gene flow in East Africa.SCIENCE BULLETIN,60(13),1184.
MLA Chen LingYun,et al."Phylogeography of Haplocarpha rueppelii (Asteraceae) suggests a potential geographic barrier for plant dispersal and gene flow in East Africa".SCIENCE BULLETIN 60.13(2015):1184.
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