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Recurrent allopolyp...
Recurrent allopolyploidizations diversify ecophysiological traits in marsh orchids (Dactylorhiza majalis s.l.)
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- Wolfe, Thomas M. (author)
- University of Natural Resources and Life Sciences, Vienna,University of Vienna
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- Balao, Francisco (author)
- University of Seville,University of Vienna
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- Trucchi, Emiliano (author)
- University of Vienna,Marche Polytechnic University
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- Bachmann, Gert (author)
- University of Vienna
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- Gu, Wenjia (author)
- Queen Mary University
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- Baar, Juliane (author)
- University of Vienna
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- Hedrén, Mikael (author)
- Lund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Biodiversity,Department of Biology,Faculty of Science
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- Weckwerth, Wolfram (author)
- University of Vienna
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- Leitch, Andrew R. (author)
- Queen Mary University
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- Paun, Ovidiu (author)
- University of Vienna
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Molecular Ecology. - 0962-1083. ; 32:17, s. 4777-4790
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http://dx.doi.org/10... (free)
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Abstract
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- Whole-genome duplication has shaped the evolution of angiosperms and other organisms, and is important for many crops. Structural reorganization of chromosomes and repatterning of gene expression are frequently observed in allopolyploids, with physiological and ecological consequences. Recurrent origins from different parental populations are widespread among polyploids, resulting in an array of lineages that provide excellent models to uncover mechanisms of adaptation to divergent environments in early phases of polyploid evolution. We integrate here transcriptomic and ecophysiological comparative studies to show that sibling allopolyploid marsh orchid species (Dactylorhiza, Orchidaceae) occur in different habitats (low nutrient fens vs. meadows with mesic soils) and are characterized by a complex suite of intertwined, pronounced ecophysiological differences between them. We uncover distinct features in leaf elemental chemistry, light-harvesting, photoprotection, nutrient transport and stomata activity of the two sibling allopolyploids, which appear to match their specific ecologies, in particular soil chemistry differences at their native sites. We argue that the phenotypic divergence between the sibling allopolyploids has a clear genetic basis, generating ecological barriers that maintain distinct, independent lineages, despite pervasive interspecific gene flow. This suggests that recurrent origins of polyploids bring about a long-term potential to trigger and maintain functional and ecological diversity in marsh orchids and other groups.
Subject headings
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Keyword
- allopolyploidy
- Dactylorhiza
- differential expression
- ecological differentiation
- photosynthesis
- soil chemistry
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Wolfe, Thomas M.
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Balao, Francisco
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Trucchi, Emilian ...
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Bachmann, Gert
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Gu, Wenjia
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Baar, Juliane
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show more...
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Hedrén, Mikael
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Weckwerth, Wolfr ...
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Leitch, Andrew R ...
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Paun, Ovidiu
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Botany
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Evolutionary Bio ...
- Articles in the publication
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Molecular Ecolog ...
- By the university
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Lund University