ArticleHeredity2016
Genetic and environmental determinants of unreduced gamete production in Brassica napus, Sinapis arvensis and their hybrids.
Article in Heredity, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
13 citing papers in PubMed, 33 citations in OpenAlex.
- Ecological opportunity and the onset of polyploid niche expansion waves.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Multiple Autopolyploid Arabidopsis lyrata Populations Stabilized by Long-Range Adaptive Introgression Across Eurasia.Molecular biology and evolution · 2025Article
- Two pathways of 2n gamete formation and differences in the frequencies of 2n gametes between wild species and interspecific hybrids.Plant cell reports · 2022Article
- Induction of 2n pollen with colchicine during microsporogenesis inBreeding science · 2022Article
- Near-Hexaploid and Near-Tetraploid Aneuploid Progenies Derived from Backcrossing Tetraploid ParentsGenes · 2022Article
- Impact of polyploidy on plant tolerance to abiotic and biotic stresses.Frontiers in plant science · 2022Review
- Transcriptome Analysis of Tetraploid and Octoploid Common Reed (Frontiers in plant science · 2021Article
- Gene flow between diploid and tetraploid junipers - two contrasting evolutionary pathways in two Juniperus populations.BMC evolutionary biology · 2020Article
- Assessing Ploidy Level Analysis and Single Pollen Genotyping of Diploid and Euploid Citrus Genotypes by Fluorescence-Activated Cell Sorting and Whole-Genome Amplification.Frontiers in plant science · 2019Article
- Effects of cold treatments on fitness and mode of reproduction in the diploid and polyploid alpine plant Ranunculus kuepferi (Ranunculaceae).Annals of botany · 2018Article
- Microspore culture reveals high fitness of B. napus-like gametes in an interspecific hybrid between Brassica napus and B. oleracea.PloS one · 2018Article
- Evolutionary dynamics of mixed-ploidy populations in an annual herb: dispersal, local persistence and recurrent origins of polyploids.Annals of botany · 2017Article
- Pathways to polyploidy: indications of a female triploid bridge in the alpine speciesPlant systematics and evolution = Entwicklungsgeschichte und Systematik der Pflanzen · 2017Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Unreduced gametes, sperm or egg cells with the somatic chromosome number, are an important mechanism of polyploid formation and gene flow between heteroploid plants. The meiotic processes leading to unreduced gamete formation are well documented, but the relative influence of environmental and genetic factors on the frequency of unreduced gametes remain largely untested. Furthermore, direct estimates of unreduced gametes based on DNA content are technically challenging and, hence, uncommon. Here, we use flow cytometry to measure the contribution of genetic (hybridization) and environmental (nutrient limitation, wounding) changes to unreduced male gamete production in Brassica napus, Sinapis arvensis and two hybrid lines. Treatments were applied to greenhouse grown plants in a random factorial design, with pollen sampled at two time intervals. Overall, the frequency of unreduced gametes averaged 0.59% (range 0.06-2.17%), plus a single outlier with 27%. Backcrossed hybrids had 39 to 75% higher unreduced gamete production than parental genotypes, averaged across all treatments, although the statistical significance of these differences depended on sampling period and wounding treatment. Unreduced gamete frequencies were higher for the second sampling period than the first. There were no direct effects of wounding or nutrient regime. Our results indicate that both genetic and environmental factors can induce increased unreduced gametes, highlighting the potential importance of environmental heterogeneity and genetic composition of populations in driving polyploid evolution.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.