ArticleScientific reports2020
Sexual modulation in a polyploid grass: a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 33 citations in OpenAlex.
- Successful transfer of apomixis leads to heritable semi-sterility in experimental apomictic hybrids of Hieracium s.str. (Asteraceae).Plant biology (Stuttgart, Germany) · 2026Article
- Review
- An interactive heuristic model to test ecological and evolutionary hypotheses on incipient polyploid species.Scientific reports · 2025Article
- Neonative Diploid-Polyploid Hotspots ofGenes · 2025Article
- The Role of Reproductive Modes in Shaping Genetic Diversity in Polyploids: A Comparative Study of Selfing, Outcrossing, and ApomicticPlants (Basel, Switzerland) · 2025Article
- New Frontiers in Potato Breeding: Tinkering with Reproductive Genes and Apomixis.Biomolecules · 2024Review
- Alternative Evolutionary Pathways inGenes · 2023Article
- Apomixis: oh, what a tangled web we have!Planta · 2023Review
- Alien genome mobilization and fixation utilizing an apomixis mediated genome addition (AMGA) strategy in Pennisetum to improve domestication traits of P. squamulatum.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Variation of Residual Sexuality Rates along Reproductive Development in Apomictic Tetraploids ofPlants (Basel, Switzerland) · 2022Article
- Genome Size, Cytotype Diversity and Reproductive Mode Variation ofPlants (Basel, Switzerland) · 2021Article
- Environmental and Genetic Factors Affecting Apospory Expressivity in DiploidPlants (Basel, Switzerland) · 2021Article
- Polyploidy Improves Photosynthesis Regulation within theBiology · 2021Article
- A Semi-Automated SNP-Based Approach for Contaminant Identification in Biparental Polyploid Populations of Tropical Forage Grasses.Frontiers in plant science · 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
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In systems alternating between sexual and asexual reproduction, sex increases under unfavorable environmental conditions. In plants producing sexual and asexual (apomictic) seeds, studies on the influence of environmental factors on sex are equivocal. We used Paspalum intermedium to study environmental effects on the expression of sexual and apomictic developments, and on resulting reproductive fitness variables. Flow cytometric and embryological analyses were performed to characterize ploidy and reproductive modes, and effects of local climatic conditions on sexual and apomictic ovule and seed frequencies were determined. Seed set and germination data were collected and used to estimate reproductive fitness. Frequencies of sexual and apomictic ovules and seeds were highly variable within and among populations. Apomictic development exhibited higher competitive ability but lower overall fitness. Frequencies of sexual reproduction in facultative apomictic plants increased at lower temperatures and wider mean diurnal temperature ranges. We identified a two-fold higher fitness advantage of sexuality and a Tug of War between factors intrinsic to apomixis and environmental stressors promoting sexuality which influence the distribution of sex in apomictic populations. This points toward a crucial role of local ecological conditions in promoting a reshuffling of genetic variability that may be shaping the adaptative landscape in apomictic P. intermedium plants.
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