ArticleNature communications2022
A pair of non-Mendelian genes at the Ga2 locus confer 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 11 papers.
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Who cites it
11 citing papers in PubMed.
- 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
- Evolution of crop phenotypic spaces through domestication.The New phytologist · 2026Article
- Decades' progress and prospects on maize functional genomics and molecular breeding.Science China. Life sciences · 2025Review
- Article
- 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
- Potent pollen gene regulation by DNA glycosylases in maize.Nature communications · 2024Article
- Establishment and Advances of Third-Generation Hybrid Rice Technology: A Review.Rice (New York, N.Y.) · 2023Review
- The Ga1 locus of the genus Zea is associated with novel genome structures derived from multiple, independent nonhomologous recombination events.G3 (Bethesda, Md.) · 2023Article
- A pollen expressed PME gene at Tcb1 locus confers maize unilateral cross-incompatibility.Plant biotechnology journal · 2023Article
- Article
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8 authors.
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Abstract
Maize unilateral cross-incompatibility (UCI) that causes non-Mendelian segregation ratios has been documented for more than a century. Ga1, Ga2, and Tcb1 are three major UCI systems, described but not fully understood. Here, we report comprehensive genetic studies on the Ga2 locus and map-based cloning of the tightly linked male determinant ZmGa2P and female determinant ZmGa2F that govern pollen-silk compatibility among different maize genotypes. Both determinants encode putative pectin methylesterases (PME). A significantly higher degree of methyl esterification is detected in the apical region of pollen tubes growing in incompatible silks. No direct interaction between ZmGa2P and ZmGa2F is detected in the yeast two-hybrid system implying a distinct mechanism from that of self-incompatibility (SI). We also demonstrate the feasibility of Ga2 as a reproductive barrier in commercial breeding programs and stacking Ga2 with Ga1 could strengthen the UCI market potentials.
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