ArticleBMC plant biology2025
Can ploidy changes propel the evolution of allogamy in a selfing species complex?
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Development of a low-coverage whole genome sequencing screen for apomixis using a diverse set of Malus germplasm.PLoS genetics · 2026Article
- An interactive heuristic model to test ecological and evolutionary hypotheses on incipient polyploid species.Scientific reports · 2025Article
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Authors and funding
12 authors.
Funding
Abstract
backgroundThe transition to self-fertilization has occurred repeatedly across diverse plant groups, and the evolutionary consequences of selfing typically suggest that a shift toward outcrossing is unlikely. However, we propose that polyploidization could drive changes in reproductive strategies by influencing traits associated with pollination. We explored various traits linked to the mating system across different ploidy levels within the polyploid Erysimum incanum species complex, which is generally considered a predominantly selfing species.
resultsOur results revealed significant variation in self-fertilization success across different ploidies and we also found significant differences among populations within the same ploidy level. Inbreeding depression is absent in diploids, it was present in hexaploids, while tetraploids exhibited intermediate values. Additionally, polyploids showed traits more commonly associated with outcrossing rather than self-fertilization. Finally, the high values of heterozygosity found in polyploid populations were contrary to our expectations due to the selfing evolutionary history of this species.
conclusionsThese findings suggest that polyploidy may facilitate the emergence of alternative reproductive strategies, driving diversification in mating systems within this selfing species complex. This phenomenon, not previously observed in the wild, opens new perspectives on the evolution of plant mating systems.
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