Journal
JOURNAL OF FISH BIOLOGY
Volume 79, Issue 5, Pages 1356-1369Publisher
WILEY
DOI: 10.1111/j.1095-8649.2011.03101.x
Keywords
Haplochromis; Ngare Nanyuki; phylogeography; rifting
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Funding
- Austrian Science Fund (FWF) [P20883]
- Austrian Science Fund (FWF) [P20883] Funding Source: Austrian Science Fund (FWF)
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Phylogenetic analysis identified haplochromine cichlids from isolated water bodies in the eastern branch of the East African Rift system as an ancient lineage separated from their western sister group in the course of the South Kenyan-North Tanzanian rift system formation. Within this lineage, the close phylogenetic relatedness among taxa indicates a recent common ancestry and historical connections between now separated water bodies. In connection with a total lack of local genetic diversity attributable to population bottlenecks, the data suggest cycles of extinction and colonization in the unstable habitat provided by the small lakes and rivers in this geologically highly active area. (C) 2011 The Authors Journal of Fish Biology (C) 2011 The Fisheries Society of the British Isles
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