ArticleAnnals of botany2014
Autotetraploids of Vicia cracca show a higher allelic richness in natural populations and a higher seed set after artificial selfing than diploids.
Article in Annals of botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed.
- Frequent origins and unidirectional gene-flow sustain cytotype coexistence in a mixed-ploidy species.BMC plant biology · 2026Article
- Whole-genome duplication increases genetic diversity and load in outcrossingProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Review
- Seed shape and size ofFrontiers in plant science · 2024Article
- The novel expression of clonality following whole-genome multiplication compensates for reduced fertility in natural autopolyploids.Proceedings. Biological sciences · 2023Article
- Multi-Omics Analysis ofPlants (Basel, Switzerland) · 2023Article
- The complete chloroplast genome ofMitochondrial DNA. Part B, Resources · 2021Article
- Genome Size Covaries More Positively with Propagule Size than Adult Size: New Insights into an Old Problem.Biology · 2021Article
- Polyploidy but Not Range Size Is Associated With Seed and Seedling Traits That Affect Performance ofFrontiers in plant science · 2021Article
- Effects of polyploidization on the contents of photosynthetic pigments are largely population-specific.Photosynthesis research · 2019Article
- Colchicine application significantly affects plant performance in the second generation of synthetic polyploids and its effects vary between populations.Annals of botany · 2017Article
- Factors influencing distribution and local coexistence of diploids and tetraploids of Vicia cracca: inferences from a common garden experiment.Journal of plant research · 2017Article
- Physiological and fitness differences between cytotypes vary with stress in a grassland perennial herb.PloS one · 2017Article
- Contrasting effects of ploidy level on seed production in a diploid tetraploid system.AoB PLANTS · 2017Article
- Effects of polyploidy and reproductive mode on life history trait expression.Ecology and evolution · 2016Article
- Conditions in home and transplant soils have differential effects on the performance of diploid and allotetraploid anthericum species.PloS one · 2015Article
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsDespite the great importance of autopolyploidy in the evolution of angiosperms, relatively little attention has been devoted to autopolyploids in natural polyploid systems. Several hypotheses have been proposed to explain why autopolyploids are so common and successful, for example increased genetic diversity and heterozygosity and the transition towards selfing. However, case studies on patterns of genetic diversity and on mating systems in autopolyploids are scarce. In this study allozymes were employed to investigate the origin, population genetic diversity and mating system in the contact zone between diploid and assumed autotetraploid cytotypes of Vicia cracca in Central Europe.
methodsFour enzyme systems resolved in six putative loci were investigated in ten diploid, ten tetraploid and five mixed-ploidy populations. Genetic diversity and heterozygosity, partitioning of genetic diversity among populations and cytotypes, spatial genetic structure and fixed heterozygosity were analysed. These studies were supplemented by a pollination experiment and meiotic chromosome observation. KEY RESULTS AND
conclusionsWeak evidence of fixed heterozygosity, a low proportion of unique alleles and genetic variation between cytotypes similar to the variation among populations within cytotypes supported the autopolyploid origin of tetraploids, although no multivalent formation was observed. Tetraploids possessed more alleles than diploids and showed higher observed zygotic heterozygosity than diploids, but the observed gametic heterozygosity was similar to the value observed in diploids and smaller than expected under panmixis. Values of the inbreeding coefficient and differentiation among populations (ρST) suggested that the breeding system in both cytotypes of V. cracca is mixed mating with prevailing outcrossing. The reduction in seed production of tetraploids after selfing was less than that in diploids. An absence of correlation between genetic and geographic distances and high differentiation among neighbouring tetraploid populations supports the secondary contact hypothesis with tetraploids of several independent origins in Central Europe. Nevertheless, the possibility of a recent in situ origin of tetraploids through a triploid bridge in some regions is also discussed.
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