Species diversity vs. morphological disparity in the light of evolutionary developmental biology

Annals of Botany
Alessandro Minelli

Abstract

Two indicators of a clade's success are its diversity (number of included species) and its disparity (extent of morphospace occupied by its members). Many large genera show high diversity with low disparity, while others such as Euphorbia and Drosophila are highly diverse but also exhibit high disparity. The largest genera are often characterized by key innovations that often, but not necessarily, coincide with their diagnostic apomorphies. In terms of their contribution to speciation, apomorphies are either permissive (e.g. flightlessness) or generative (e.g. nectariferous spurs). Except for Drosophila, virtually no genus among those with the highest diversity or disparity includes species currently studied as model species in developmental genetics or evolutionary developmental biology (evo-devo). An evo-devo approach is, however, potentially important to understand how diversity and disparity could rapidly increase in the largest genera currently accepted by taxonomists. The most promising directions for future research and a set of key questions to be addressed are presented in this review. From an evo-devo perspective, the evolution of clades with high diversity and/or disparity can be addressed from three main perspective...Continue Reading

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Citations

Mar 20, 2016·Annals of Botany·Rainer Melzer, Günter Theißen
Apr 2, 2016·Progress in Neurobiology·Hans Gerd Nothwang
Sep 26, 2017·Ecology and Evolution·Giuseppe PellegrinoAnna Maria Palermo
Dec 21, 2018·The New Phytologist·Mario Fernández-MazuecosBeverley J Glover
Mar 21, 2020·Systematic Biology·Steven PoeJoseph Barnett
Jun 28, 2020·BMC Evolutionary Biology·Benedikt WiggeringMatthias Glaubrecht
May 10, 2017·Royal Society Open Science·Dawn M KingSonya Bahar
Nov 17, 2017·Evolutionary Biology·David Jablonski
Mar 12, 2021·Plant Biotechnology Journal·Peng GaoDaoquan Xiang

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