@ARTICLE{TreeBASE2Ref24182, author = {Ling-Yun Chen and John K Muchuku and Xue Yan and Guang-Wan Hu and Qing-Feng Wang}, title = {Phylogeography of Haplocarpha rueppelii (Asteraceae) suggests a geographic barrier in East Africa}, year = {2015}, keywords = {East Africa, afro-alpine, gene flow, phylogeography, geographic barrier, Haplocarpha rueppelii}, doi = {10.?1007/?s11434-015-0832-x}, url = {http://}, pmid = {}, journal = {Science Bulletin}, volume = {60}, number = {}, pages = {1184--1192}, abstract = {East Africa is a biodiversity hotpot in the world. Haplocarpha rueppelii is mainly distributed in the alpine grassland and moorland of East Africa. As a starting point of our work on investigating the phylogeography in East Africa, we sampled 65 individuals of 8 populations (locations) from East Africa which includes Mts. Elgon, Aberdare, Kenya, Kilimanjaro and Bale mountains. We sequenced 1 nuclear and 3 chloroplast DNA fragments, and conducted phylogenetic analysis, divergence time estimation, principal coordinate analysis and gene flow analysis to investigate the phylogeographic structure of the species. 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 results also support that the character of multicellular hairs is mutable and therefore no change of the taxonomic concept of this species is needed. The species has established in Mts. Kenya and Aberdare during the Pliocene and Early Pleistocene. However, migration rate between the two mountains was low as showed by gene flow analysis. Therefore, a barrier for plant migration and gene flow exists between Mts. Aberdare and Kenya since the Pleistocene, which is different from previous studies that show a close relationship between the two mountains. In addition, diversification of this species seems not to be affected by the East African Rift Valley. This study reveals an unreported geographic barrier in East Africa using molecular data. We hope this paper will arouse more scientists? interests in phylogeography of Africa.} }

• Go to search
• Citation
• Taxa
• Matrices
• Trees
• Analyses
• 

CiteULike

Delicious

Connotea