Phenotypic and genotypic parallel evolution in parapatric ecotypes of Senecio.

Autor: James ME; School of Biological Sciences, The University of Queensland, St. Lucia, QLD, 4072, Australia.; Australian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, QLD, 4072, Australia., Wilkinson MJ; School of Biological Sciences, The University of Queensland, St. Lucia, QLD, 4072, Australia.; Australian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, QLD, 4072, Australia., Bernal DM; School of Biological Sciences, The University of Queensland, St. Lucia, QLD, 4072, Australia.; Current Address: Biousos Neotropicales S.A.S, Bogotá, Colombia., Liu H; School of Biological Sciences, The University of Queensland, St. Lucia, QLD, 4072, Australia.; Current Address: Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, 08003, Spain., North HL; School of Biological Sciences, The University of Queensland, St. Lucia, QLD, 4072, Australia.; Current Address: Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, United Kingdom., Engelstädter J; School of Biological Sciences, The University of Queensland, St. Lucia, QLD, 4072, Australia., Ortiz-Barrientos D; School of Biological Sciences, The University of Queensland, St. Lucia, QLD, 4072, Australia.; Australian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, The University of Queensland, St Lucia, QLD, 4072, Australia.
Jazyk: angličtina
Zdroj: Evolution; international journal of organic evolution [Evolution] 2021 Dec; Vol. 75 (12), pp. 3115-3131. Date of Electronic Publication: 2021 Nov 08.
DOI: 10.1111/evo.14387
Abstrakt: The independent and repeated adaptation of populations to similar environments often results in the evolution of similar forms. This phenomenon creates a strong correlation between phenotype and environment and is referred to as parallel evolution. However, we are still largely unaware of the dynamics of parallel evolution, as well as the interplay between phenotype and genotype within natural systems. Here, we examined phenotypic and genotypic parallel evolution in multiple parapatric Dune-Headland coastal ecotypes of an Australian wildflower, Senecio lautus. We observed a clear trait-environment association in the system, with all replicate populations having evolved along the same phenotypic evolutionary trajectory. Similar phenotypes have arisen via mutational changes occurring in different genes, although many share the same biological functions. Our results shed light on how replicated adaptation manifests at the phenotypic and genotypic levels within populations, and highlight S. lautus as one of the most striking cases of phenotypic parallel evolution in nature.
(© 2021 The Authors. Evolution published by Wiley Periodicals LLC on behalf of The Society for the Study of Evolution.)
Databáze: MEDLINE
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