Alexandra Tyers - Academia.edu (original) (raw)
Uploads
Papers by Alexandra Tyers
Science (New York, N.Y.), Jan 18, 2015
The genomic causes and effects of divergent ecological selection during speciation are still poor... more The genomic causes and effects of divergent ecological selection during speciation are still poorly understood. Here we report the discovery and detailed characterization of early-stage adaptive divergence of two cichlid fish ecomorphs in a small (700 meters in diameter) isolated crater lake in Tanzania. The ecomorphs differ in depth preference, male breeding color, body shape, diet, and trophic morphology. With whole-genome sequences of 146 fish, we identified 98 clearly demarcated genomic "islands" of high differentiation and demonstrated the association of genotypes across these islands with divergent mate preferences. The islands contain candidate adaptive genes enriched for functions in sensory perception (including rhodopsin and other twilight-vision-associated genes), hormone signaling, and morphogenesis. Our study suggests mechanisms and genomic regions that may play a role in the closely related mega-radiation of Lake Malawi.
Bookmarks Related papers MentionsView impact
Applied Animal Behaviour Science, 2015
Bookmarks Related papers MentionsView impact
Evolutionary Biology, 2014
Bookmarks Related papers MentionsView impact
Biological Journal of the Linnean Society, 2013
Bookmarks Related papers MentionsView impact
by Ian Donohue, Franziska Schädelin, Kevin Schneider, Jacco van Rijssel, Romulus Abila, Diogo Antunes, Taylor Banda, Auguste Chocha Manda, Peter Akoll, Karoline Fritzsche, Hugo F. Gante, M Genner, Hiroki Hata, Joachim Frommen, Arne Jungwirth, Luc Janssens de Bisthoven, Prince Kaleme, Stephan Koblmüller, Anton Lamboj, Pascal Masilya, Loïc Kéver, Ad Konings, Gaspard Ntakimazi, W. Okello, Lobomir Pialek, Pierre Denis Plisnier, Jelena Rajkov, Joost A M Raeymaekers, Isa Schoen, Pooja Singh, George Turner, Alexandra Tyers, Alexandra A - T Weber, Holger Zimmermann, Ola Svensson, and Maarten Vanhove
Bookmarks Related papers MentionsView impact
Science (New York, N.Y.), Jan 18, 2015
The genomic causes and effects of divergent ecological selection during speciation are still poor... more The genomic causes and effects of divergent ecological selection during speciation are still poorly understood. Here we report the discovery and detailed characterization of early-stage adaptive divergence of two cichlid fish ecomorphs in a small (700 meters in diameter) isolated crater lake in Tanzania. The ecomorphs differ in depth preference, male breeding color, body shape, diet, and trophic morphology. With whole-genome sequences of 146 fish, we identified 98 clearly demarcated genomic "islands" of high differentiation and demonstrated the association of genotypes across these islands with divergent mate preferences. The islands contain candidate adaptive genes enriched for functions in sensory perception (including rhodopsin and other twilight-vision-associated genes), hormone signaling, and morphogenesis. Our study suggests mechanisms and genomic regions that may play a role in the closely related mega-radiation of Lake Malawi.
Bookmarks Related papers MentionsView impact
Applied Animal Behaviour Science, 2015
Bookmarks Related papers MentionsView impact
Evolutionary Biology, 2014
Bookmarks Related papers MentionsView impact
Biological Journal of the Linnean Society, 2013
Bookmarks Related papers MentionsView impact
by Ian Donohue, Franziska Schädelin, Kevin Schneider, Jacco van Rijssel, Romulus Abila, Diogo Antunes, Taylor Banda, Auguste Chocha Manda, Peter Akoll, Karoline Fritzsche, Hugo F. Gante, M Genner, Hiroki Hata, Joachim Frommen, Arne Jungwirth, Luc Janssens de Bisthoven, Prince Kaleme, Stephan Koblmüller, Anton Lamboj, Pascal Masilya, Loïc Kéver, Ad Konings, Gaspard Ntakimazi, W. Okello, Lobomir Pialek, Pierre Denis Plisnier, Jelena Rajkov, Joost A M Raeymaekers, Isa Schoen, Pooja Singh, George Turner, Alexandra Tyers, Alexandra A - T Weber, Holger Zimmermann, Ola Svensson, and Maarten Vanhove
Bookmarks Related papers MentionsView impact