Journal Article

Viviparity stimulates diversification in an order of fish

Igea, Javier, Imperial College London, Papadopulos, Alexander S.T, University of Cambridge [UK] (CAM), Leroi, Armand M, CEREEP-Ecotron Ile de France (UMS 3194) ; Département de Biologie - ENS-PSL (IBENS) ; École normale supérieure - Paris (ENS-PSL) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Naturalis Biodiversity Center [Leiden], Savolainen, Vincent, Dooren, Tom Van, J M, UK Natural Environmental Research Council; Royal Society; European Research Council, Institut d'écologie et des sciences de l'environnement de Paris (iEES) ; Institut National de

2016

Overview

Species richness is distributed unevenly across the tree of life and this may be influenced by the evolution of novel phenotypes that promote diversification. Viviparity has originated B150 times in vertebrates and is considered to be an adaptation to highly variable environments. Likewise, possessing an annual life cycle is common in plants and insects, where it enables the colonization of seasonal environments, but rare in vertebrates. The extent to which these reproductive life-history traits have enhanced diversification and their relative importance in the process remains unknown. We show that convergent evolution of viviparity causes bursts of diversification in fish. We built a phylogenetic tree for Cyprino-dontiformes, an order in which both annualism and viviparity have arisen, and reveal that while both traits have evolved multiple times, only viviparity played a major role in shaping the patterns of diversity. These results demonstrate that changes in reproductive life-history strategy can stimulate diversification.

• Publisher: Nature Publishing Group,CCSD,Nature Publishing Group UK,Nature Portfolio
• Subject: 631/181/759 / 631/601/2722 / Animals / Biodiversity / Biodiversity and Ecology / Cyprinodontiformes - physiology / Environmental Sciences / Female / Humanities and Social Sciences / Life history / Models, Biological / multidisciplinary / Phylogeny / Quantitative Trait, Heritable / Science / Science (multidisciplinary) / Species richness / Time Factors / Vertebrates / Viviparity, Nonmammalian - physiology
• ISBN: 9780003738308, 0003738302