Molecular investigation of genetic assimilation during the rapid adaptive radiations of East African cichlid fishes

Molecular Ecology
Helen M GunterAxel Meyer

Abstract

Adaptive radiations are characterized by adaptive diversification intertwined with rapid speciation within a lineage resulting in many ecologically specialized, phenotypically diverse species. It has been proposed that adaptive radiations can originate from ancestral lineages with pronounced phenotypic plasticity in adaptive traits, facilitating ecologically driven phenotypic diversification that is ultimately fixed through genetic assimilation of gene regulatory regions. This study aimed to investigate how phenotypic plasticity is reflected in gene expression patterns in the trophic apparatus of several lineages of East African cichlid fishes, and whether the observed patterns support genetic assimilation. This investigation used a split brood experimental design to compare adaptive plasticity in species from within and outside of adaptive radiations. The plastic response was induced in the crushing pharyngeal jaws through feeding individuals either a hard or soft diet. We find that nonradiating, basal lineages show higher levels of adaptive morphological plasticity than the derived, radiated lineages, suggesting that these differences have become partially genetically fixed during the formation of the adaptive radiations. Two...Continue Reading

References

Dec 9, 1998·Nature·S L Rutherford, S Lindquist
Apr 29, 1999·Proceedings of the National Academy of Sciences of the United States of America·R C AlbertsonT D Kocher
Dec 3, 1999·The International Journal of Biochemistry & Cell Biology·T J SadlonB K May
Aug 11, 2000·Evolution; International Journal of Organic Evolution·J B LososJ Ettling
Dec 7, 2000·Evolution; International Journal of Organic Evolution·D W Pfennig, P J Murphy
Jun 7, 2002·Nature·Christine QueitschSusan Lindquist
Jul 30, 2002·Evolution; International Journal of Organic Evolution·David W Pfennig, Peter J Murphy
Oct 2, 2002·Evolution; International Journal of Organic Evolution·P Nosil
Aug 7, 2003·Trends in Genetics : TIG·Kazuhisa Nakashima, Benoit de Crombrugghe
Jan 3, 1959·Lancet·C C BOOTH, D L MOLLIN
Jan 1, 1961·Advances in Genetics·C H WADDINGTON
Nov 10, 1961·Science·E MAYR
Apr 8, 2004·Developmental Cell·Rowena McBeathChristopher S Chen
Sep 9, 2004·Science·Arhat AbzhanovClifford J Tabin
Apr 27, 2005·Proceedings of the National Academy of Sciences of the United States of America·Mary Jane West-Eberhard
Oct 15, 2005·Science·Daniel H NusseyMarcel E Visser
Feb 4, 2006·Science·Yuichiro Suzuki, H Frederik Nijhout
Jun 3, 2006·Evolution; International Journal of Organic Evolution·Kevin J Parsons, Beren W Robinson
Jul 13, 2006·Heredity·R C Albertson, T D Kocher
Jul 19, 2006·Proceedings. Biological Sciences·Ole Seehausen
Aug 18, 2006·Ecology Letters·Christina L RichardsMassimo Pigliucci
Aug 23, 2006·Cell·Adam J EnglerDennis E Discher
Jan 9, 2007·The American Naturalist·Joanna MaselHeather Maughan
Mar 14, 2007·Evolution; International Journal of Organic Evolution·Céline ClabautAxel Meyer
Mar 21, 2007·Molecular Biology and Evolution·Martin J GennerGeorge F Turner
Oct 11, 2007·Evolution; International Journal of Organic Evolution·Massimo Pigliucci
Oct 11, 2007·Current Biology : CB·George F Turner
Apr 16, 2008·Molecular Ecology·Erika Crispo, Lauren J Chapman
Oct 4, 2008·Nature·Ole SeehausenNorihiro Okada
Aug 1, 1993·The American Naturalist·C D Schlichting, M Pigliucci
Aug 5, 2009·Proceedings of the National Academy of Sciences of the United States of America·Kathryn R ElmerAxel Meyer

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Citations

Jun 17, 2020·Integrative and Comparative Biology·Nidal KaragicC Darrin Hulsey
Aug 11, 2020·Biologie aujourd'hui·Jean-Michel Gibert
Feb 3, 2021·Evolution; International Journal of Organic Evolution·Benjamin J ParkerJennifer A Brisson
Mar 16, 2019·Trends in Ecology & Evolution·David F WestneatJames D Shaffer
Apr 24, 2021·BMC Ecology and Evolution·Pooja SinghChristian Sturmbauer
Mar 16, 2021·Molecular Biology and Evolution·Michelle C GilbertR Craig Albertson
Aug 30, 2021·Evolution & Development·Carlos Espinosa-SotoYuridia S Posadas-García

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