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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
general
Speciation through sensory drive in cichlid fish
Nature, Volume 455, No. 7213, Year 2008
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Description
Theoretically, divergent selection on sensory systems can cause speciation through sensory drive. However, empirical evidence is rare and incomplete. Here we demonstrate sensory drive speciation within island populations of cichlid fish. We identify the ecological and molecular basis of divergent evolution in the cichlid visual system, demonstrate associated divergence in male colouration and female preferences, and show subsequent differentiation at neutral loci, indicating reproductive isolation. Evidence is replicated in several pairs of sympatric populations and species. Variation in the slope of the environmental gradients explains variation in the progress towards speciation: speciation occurs on all but the steepest gradients. This is the most complete demonstration so far of speciation through sensory drive without geographical isolation. Our results also provide a mechanistic explanation for the collapse of cichlid fish species diversity during the anthropogenic eutrophication of Lake Victoria. ©2008 Macmillan Publishers Limited. All rights reserved.
Authors & Co-Authors
Seehausen, Ole
Switzerland, Bern
University of Bern
Switzerland, Dubendorf
Eawag - Swiss Federal Institute of Aquatic Science and Technology
Terai, Yohey
Japan, Tokyo
Tokyo Institute of Technology
Magalhaes, Isabel Santos
Switzerland, Bern
University of Bern
Switzerland, Dubendorf
Eawag - Swiss Federal Institute of Aquatic Science and Technology
Carleton, Karen L.
United States, College Park
University of Maryland, College Park
Mrosso, Hillary Deogratias John
Tanzania, Dar es Salaam
Tanzania Fisheries Research Institute Tafiri
Miyagi, Ryutaro
Japan, Tokyo
Tokyo Institute of Technology
Van Der Sluijs, Inke
Netherlands, Leiden
Institute of Biology Leiden
Canada, Montreal
Université Mcgill
Schneider, Maria Victoria
Switzerland, Dubendorf
Eawag - Swiss Federal Institute of Aquatic Science and Technology
United Kingdom, Hinxton
Embl’s European Bioinformatics Institute
Maan, Martine E.
Netherlands, Leiden
Institute of Biology Leiden
United States, Austin
The University of Texas at Austin
Tachida, Hidenori
Japan, Fukuoka
Kyushu University
Imai, Hiroo
Japan, Kyoto
Kyoto University
Okada, Norihiro
Japan, Tokyo
Tokyo Institute of Technology
Statistics
Citations: 1,023
Authors: 12
Affiliations: 11
Identifiers
Doi:
10.1038/nature07285
ISSN:
00280836
e-ISSN:
14764687
Research Areas
Sexual And Reproductive Health
Participants Gender
Male
Female