2008
DOI: 10.1038/nature07285
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Speciation through sensory drive in cichlid fish

Abstract: 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… Show more

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Cited by 981 publications
(1,219 citation statements)
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References 45 publications
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“…This hypothesis would be in line with a 'sensory bias' explanation for sexual signalling, whereby a particular sensory value is preferred in mate choice because the sensory systems are pre-adapted to such stimulation [17,18]. Such pre-adaptations may reflect shape, sound or-of relevance here-colour preferences [19][20][21][22]. Support for sensory bias potentially influencing human aesthetic sense comes from work on colour judgments indicating consensus preferences for particular colour (hue) and lightness combinations in the absence of any other cues [23 -25].…”
Section: Introductionmentioning
confidence: 54%
“…This hypothesis would be in line with a 'sensory bias' explanation for sexual signalling, whereby a particular sensory value is preferred in mate choice because the sensory systems are pre-adapted to such stimulation [17,18]. Such pre-adaptations may reflect shape, sound or-of relevance here-colour preferences [19][20][21][22]. Support for sensory bias potentially influencing human aesthetic sense comes from work on colour judgments indicating consensus preferences for particular colour (hue) and lightness combinations in the absence of any other cues [23 -25].…”
Section: Introductionmentioning
confidence: 54%
“…One answer to this may be that dispersal is not random with respect to the phenotype of the individuals and their chosen environment through matching habitat choice (Edelaar, Siepielski, & Clobert, 2008). With increasing depth in lacustrine environments, abiotic components of the environment such as temperature, oxygen concentration, light intensity and spectral composition change rapidly alongside concomitant changes in biotic components (Seehausen et al., 2008). Coupled changes in these factors will create localized divergent selection regimes at different locations along lacustrine depth gradients.…”
Section: Discussionmentioning
confidence: 99%
“…We conducted phylogenetic analyses among 19 nominal Siganus species based on mitochondrial cytochrome b gene and nuclear ribosomal DNA internal spacer 1 (ITS1) sequences to infer their phylogenetic relationships and degree of genetic differentiation among species. We predicted that reproductive isolation is completely established among siganid species because teleost fish with opsin genes, such as RH1, RH-2, LWS, and SWS (Register et al, 1994;Yokoyama and Yokoyama, 1996;Seehausen et al, 2008), can visually discriminate individuals of the same species according to their coloration. As shown in Fig.…”
Section: Genetic Diversity and Evolution In Coral Reefsmentioning
confidence: 99%