ArticlePlant physiology2015
Polyploidy Enhances F1 Pollen Sterility Loci Interactions That Increase Meiosis Abnormalities and Pollen Sterility in Autotetraploid Rice.
Article in Plant physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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Who cites it
40 citing papers in PubMed, 55 citations in OpenAlex.
- Cross incompatibility restricting genome exchange and diversification of primary gene pool in plants: challenges and opportunities.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Review
- Variable but Inheritable: Colchicine-Induced Polyploidy inPlants (Basel, Switzerland) · 2026Article
- HSP101-encoding NEO-TETRAPLOID RICE FERTILITY GENE 1 regulates tapetum development through interaction with SAPK2 in polyploid rice.Journal of integrative plant biology · 2026Article
- Identification of a Novel Rice Chromosomal Translocation Line that Could Cause the Heterozygote Semi-Sterility and be Overcome by Genomic Duplication.Rice (New York, N.Y.) · 2025Article
- Interspecific Hybridization Enhanced Tolerance to Salinity and Cadmium Stress Through Modifying Biochemical, Physiological, and Resistance Gene Levels, Especially in Polyploid Rice: A Sustainable Way for Stress-Resilient Rice.Rice (New York, N.Y.) · 2025Article
- Genome Resequencing for Autotetraploid Rice and Its Closest Relatives Reveals Abundant Variation and High Potential in Rice Breeding.International journal of molecular sciences · 2024Article
- Lectin Receptor-Like Protein Kinase OsNRFG6 is Required for Embryo Sac Development and Fertilization in Neo-Tetraploid Rice.Rice (New York, N.Y.) · 2024Article
- Seed development-related genes contribute to high yield heterosis in integrated utilization of elite autotetraploid and neo-tetraploid rice.Frontiers in plant science · 2024Article
- Natural allelic variation in GRAIN SIZE AND WEIGHT 3 of wild rice regulates the grain size and weight.Plant physiology · 2023Article
- Autotetraploidization Alters Morphology, Photosynthesis, Cytological Characteristics and Fruit Quality in Sour Jujube (Plants (Basel, Switzerland) · 2023Article
- Comparative cytological and transcriptome analyses ofFrontiers in plant science · 2023Article
- ApomicticFrontiers in plant science · 2023Article
- An uncharacterized protein NY1 targets EAT1 to regulate anther tapetum development in polyploid rice.BMC plant biology · 2022Article
- Developmental Differences between Anthers of Diploid and Autotetraploid Rice at Meiosis.Plants (Basel, Switzerland) · 2022Article
- Thermo-Sensitive Genic Male Sterile Lines of Neo-Tetraploid Rice Developed through Gene Editing Technology Revealed High Levels of Hybrid Vigor.Plants (Basel, Switzerland) · 2022Article
- Alkaline Stress Induces Different Physiological, Hormonal and Gene Expression Responses in Diploid and Autotetraploid Rice.International journal of molecular sciences · 2022Article
- Characterization of fertility alteration and marker validation for male sterility genes in novel PTGMS lines hybrid rice.Saudi journal of biological sciences · 2021Article
- A New Way of Rice Breeding: Polyploid Rice Breeding.Plants (Basel, Switzerland) · 2021Review
- Genomics Analyses Reveal Unique Classification, Population Structure and Novel Allele of Neo-Tetraploid Rice.Rice (New York, N.Y.) · 2021Article
- Cytological Observations and Bulked-Segregant Analysis Coupled Global Genome Sequencing Reveal Two Genes Associated with Pollen Fertility in Tetraploid Rice.International journal of molecular sciences · 2021Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Intersubspecific autotetraploid rice (Oryza sativa ssp. indica × japonica) hybrids have greater biological and yield potentials than diploid rice. However, the low fertility of intersubspecific autotetraploid hybrids, which is largely caused by high pollen abortion rates, limits their commercial utility. To decipher the cytological and molecular mechanisms underlying allelic interactions in autotetraploid rice, we developed an autotetraploid rice hybrid that was heterozygous (S(i)S(j)) at F1 pollen sterility loci (Sa, Sb, and Sc) using near-isogenic lines. Cytological studies showed that the autotetraploid had higher percentages (>30%) of abnormal chromosome behavior and aberrant meiocytes (>50%) during meiosis than did the diploid rice hybrid control. Analysis of gene expression profiles revealed 1,888 genes that were differentially expressed between the autotetraploid and diploid hybrid lines at the meiotic stage, among which 889 and 999 were up- and down-regulated, respectively. Of the 999 down-regulated genes, 940 were associated with the combined effect of polyploidy and pollen sterility loci interactions (IPE). Gene Ontology enrichment analysis identified a prominent functional gene class consisting of seven genes related to photosystem I (Gene Ontology 0009522). Moreover, 55 meiosis-related or meiosis stage-specific genes were associated with IPE in autotetraploid rice, including Os02g0497500, which encodes a DNA repair-recombination protein, and Os02g0490000, which encodes a component of the ubiquitin-proteasome pathway. These results suggest that polyploidy enhances epistatic interactions between alleles of pollen sterility loci, thereby altering the expression profiles of important meiosis-related or meiosis stage-specific genes and resulting in high pollen sterility.
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