ArticleAnnals of botany2010
Cytotype stability, facultative apomixis and geographical parthenogenesis in Ranunculus kuepferi (Ranunculaceae).
Article in Annals of botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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43 citing papers in PubMed, 104 citations in OpenAlex.
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- Engineering apomixis in crops.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Review
- Apomixis: oh, what a tangled web we have!Planta · 2023Review
- Geographical Parthenogenesis in Alpine and Arctic Plants.Plants (Basel, Switzerland) · 2023Review
- Variation of Residual Sexuality Rates along Reproductive Development in Apomictic Tetraploids ofPlants (Basel, Switzerland) · 2022Article
- The Effectiveness of the Sexual Reproduction in Selected Clonal and Nonclonal Species of the GenusBiology · 2022Article
- Genome Size, Cytotype Diversity and Reproductive Mode Variation ofPlants (Basel, Switzerland) · 2021Article
- Gene Expression Profiles Suggest a Better Cold Acclimation of Polyploids in the Alpine SpeciesGenes · 2021Article
- Single Independent Autopolyploidization Events From Distinct Diploid Gene Pools and Residual Sexuality Support Range Expansion of Locally Adapted Tetraploid Genotypes in a South American Grass.Frontiers in genetics · 2021Article
- Breeding system of diploid sexuals within theEcology and evolution · 2020Article
- Phenotypic Responses, Reproduction Mode and Epigenetic Patterns under Temperature Treatments in the Alpine Plant SpeciesBiology · 2020Article
- Epigenetic Patterns and Geographical Parthenogenesis in the Alpine Plant SpeciesInternational journal of molecular sciences · 2020Article
- Ploidy-Dependent Effects of Light Stress on the Mode of Reproduction in theFrontiers in plant science · 2020Article
- Effects of Temperature Treatments on Cytosine-Methylation Profiles of Diploid and Autotetraploid Plants of the Alpine SpeciesFrontiers in plant science · 2020Article
- Reproductive pathways in Hieracium s.s. (Asteraceae): strict sexuality in diploids and apomixis in polyploids.Annals of botany · 2019Article
- Partitioning Apomixis Components to Understand and Utilize Gametophytic Apomixis.Frontiers in plant science · 2019Review
- The Rise of Apomixis in Natural Plant Populations.Frontiers in plant science · 2019Review
- Ecological differentiation facilitates fine-scale coexistence of sexual and asexual Boechera.American journal of botany · 2018Article
- Sexual intraspecific recombination but notTaxon · 2018Article
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2 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsAsexual organisms are more widespread in previously glaciated areas than their sexual relatives ('geographical parthenogenesis'). In plants, this pattern is probably dependent on reproductive isolation and stability of cytotypes within their respective distribution areas. Both partial apomixis and introgressive hybridization potentially destabilize the spatial separation of sexual and apomictic populations. The wide distribution of apomicts may be further enhanced by uniparental reproduction which is advantageous for colonization. These factors are studied in the alpine species Ranunculus kuepferi.
methodsGeographical distribution, diversity and mode of reproduction of cytotypes were assessed using flow cytometry and flow cytometric seed screening on samples from 59 natural populations of Ranunculus kuepferi. Seed set of cytotypes was compared in the wild. KEY
resultsDiploid sexuals are confined to the south-western parts of the Alps, while tetraploid apomicts dominate in previously glaciated and in geographically isolated areas despite a significantly lower fertility. Other cytotypes (3x, 5x and 6x) occur mainly in the sympatric zone, but without establishing populations. The tetraploids are predominantly apomictic, but also show a partial apomixis via an uncoupling of apomeiosis and parthenogenesis in the seed material. Both pseudogamy and autonomous endosperm formation are observed which may enhance uniparental reproduction.
conclusionsDiploids occupy a glacial relic area and resist introgression of apomixis, probably because of a significantly higher seed set. Among the polyploids, only apomictic tetraploids form stable populations; the other cytotypes arising from partial apomixis fail to establish, probably because of minority cytotype disadvantages. Tetraploid apomicts colonize previously devastated and also distant areas via long-distance dispersal, confirming Baker's law of an advantage of uniparental reproduction. It is concluded that stability of cytotypes and of modes of reproduction are important factors for establishing a pattern of geographical parthenogenesis.
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