ArticleNature communications2022
Three types of genes underlying the Gametophyte factor1 locus cause unilateral cross incompatibility in maize.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 30 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
- Multiomics analysis of primary metabolism reveals the genetic basis of nitrogen partitioning modulated by ZmAVT1A-1 in maize.Nature genetics · 2026Article
- Allelic differences within DNA polymerase delta subunit 1 correlate with geminivirus resistance in diverse plants.G3 (Bethesda, Md.) · 2025Article
- Decades' progress and prospects on maize functional genomics and molecular breeding.Science China. Life sciences · 2025Review
- Tracing the global spread of maize (Zea mays L.) through plastome analysis of landraces.BMC plant biology · 2025Article
- Article
- Gene expression and pollen performance indicate altered postmating selection between Solanum species with different mating systems.G3 (Bethesda, Md.) · 2025Article
- Genome assembly and population genomic analysis reveal the genetic basis of popcorn evolution.Plant biotechnology journal · 2025Article
- Molecular mechanisms and genetic regulation of self-incompatibility in flowering plants: implications for crop improvement and evolutionary biology.Plant molecular biology · 2025Review
- Analysis of Ga2 genome structure and activity reveals widespread distribution of functional alleles in modern maize germplasm.G3 (Bethesda, Md.) · 2025Article
- Pectin methylesterase activities in reproductive tissues of maize plants with different haplotypes of the Ga1 and Ga2 cross incompatibility systems.Plant reproduction · 2024Article
- The Ga1 locus of the genus Zea is associated with novel genome structures derived from multiple, independent nonhomologous recombination events.G3 (Bethesda, Md.) · 2023Article
- Genetic Analysis and Fine Mapping ofInternational journal of molecular sciences · 2022Article
- A pan-Zea genome map for enhancing maize improvement.Genome biology · 2022Article
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Authors and funding
18 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Unilateral cross incompatibility (UCI) occurs between popcorn and dent corn, and represents a critical step towards speciation. It has been reported that ZmGa1P, encoding a pectin methylesterase (PME), is a male determinant of the Ga1 locus. However, the female determinant and the genetic relationship between male and female determinants at this locus are unclear. Here, we report three different types, a total of seven linked genes underlying the Ga1 locus, which control UCI phenotype by independently affecting pollen tube growth in both antagonistic and synergistic manners. These include five pollen-expressed PME genes (ZmGa1Ps-m), a silk-expressed PME gene (ZmPME3), and another silk-expressed gene (ZmPRP3), encoding a pathogenesis-related (PR) proteins. ZmGa1Ps-m confer pollen compatibility. Presence of ZmPME3 causes silk to reject incompatible pollen. ZmPRP3 promotes incompatibility pollen tube growth and thereby breaks the blocking effect of ZmPME3. In addition, evolutionary genomics analyses suggest that the divergence of the Ga1 locus existed before maize domestication and continued during breeding improvement. The knowledge gained here deepen our understanding of the complex regulation of cross incompatibility.
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