Inferring the accumulation of morphological disparity in epiphyllous liverworts
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ORIGINAL ARTICLE
Inferring the accumulation of morphological disparity in epiphyllous liverworts Ying Yu & Jochen Heinrichs & Alfons Schäfer-Verwimp & Rui-Liang Zhu & Harald Schneider
Received: 29 August 2013 / Accepted: 8 January 2014 # Gesellschaft für Biologische Systematik 2014
Abstract Phylogenetic studies of lineages growing in extreme environments have frequently recovered evidence not only of high level of homoplasy but also of discordance of morphological disparity and species diversity. It has been suggested that this divergence may be caused by developmental constraints and/or natural selection. Here we explored these hypotheses by inferring the phenotypic evolution of the derived liverwort genus Cololejeunea. These liverworts occur preferentially on the surface of leaves or other aerial parts of vascular plants growing in wet forests. The evolution of 12 morphological characters was studied using a phylogenetic
Electronic supplementary material The online version of this article (doi:10.1007/s13127-014-0166-6) contains supplementary material, which is available to authorized users. Y. Yu : R.
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