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The origin and early evolution of vascular plant shoots and leaves

Harrison, C. Jill and Morris, Jennifer ORCID: 2018. The origin and early evolution of vascular plant shoots and leaves. Philosophical Transactions B: Biological Sciences 373 (1739) , 20160496. 10.1098/rstb.2016.0496

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The morphology of plant fossils from the Rhynie chert has generated longstanding questions about vascular plant shoot and leaf evolution, for instance, which morphologies were ancestral within land plants, when did vascular plants first arise and did leaves have multiple evolutionary origins? Recent advances combining insights from molecular phylogeny, palaeobotany and evo-devo research address these questions and suggest the sequence of morphological innovation during vascular plant shoot and leaf evolution. The evidence pinpoints testable developmental and genetic hypotheses relating to the origin of branching and indeterminate shoot architectures prior to the evolution of leaves, and demonstrates underestimation of polyphyly in the evolution of leaves from branching forms in ‘telome theory’ hypotheses of leaf evolution. This review discusses fossil, developmental and genetic evidence relating to the evolution of vascular plant shoots and leaves in a phylogenetic framework. This article is part of the themed issue ‘The Rhynie chert: our earliest terrestrial ecosystem revisited’.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Environmental Sciences
Publisher: Royal Society, The
ISSN: 0962-8436
Date of First Compliant Deposit: 22 January 2018
Date of Acceptance: 11 August 2017
Last Modified: 02 May 2023 15:07

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