ArticlePlant biotechnology journal2024
MSH7 confers quantitative variation in pollen fertility and boosts grain yield in maize.
Article in Plant biotechnology journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 7 citations in OpenAlex.
- An overview of recent advances on wheat homologous and homoeologous recombination.Journal of experimental botany · 2026Review
- Transcriptional reprogramming of heat-sensitive maize anther development under heat stress.BMC plant biology · 2026Article
- Cytological and Ploidy Analyses Revealing Fertility Defects of CultivarPlants (Basel, Switzerland) · 2025Article
- Application of 4-CPA or ethanol enhances plant growth and fruit quality of phyA mutant under heat stress.Scientific reports · 2025Article
- CRISPR/Cas9: a sustainable technology to enhance climate resilience in major Staple Crops.Frontiers in genome editing · 2025Review
- Understanding grain development in the Poaceae family by comparing conserved and distinctive pathways through omics studies in wheat and maize.Frontiers in plant science · 2024Review
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Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
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Abstract
Fertile pollen is critical for the survival, fitness, and dispersal of flowering plants, and directly contributes to crop productivity. Extensive mutational screening studies have been carried out to dissect the genetic regulatory network determining pollen fertility, but we still lack fundamental knowledge about whether and how pollen fertility is controlled in natural populations. We used a genome-wide association study (GWAS) to show that ZmGEN1A and ZmMSH7, two DNA repair-related genes, confer natural variation in maize pollen fertility. Mutants defective in these genes exhibited abnormalities in meiotic or post-meiotic DNA repair, leading to reduced pollen fertility. More importantly, ZmMSH7 showed evidence of selection during maize domestication, and its disruption resulted in a substantial increase in grain yield for both inbred and hybrid. Overall, our study describes the first systematic examination of natural genetic effects on pollen fertility in plants, providing valuable genetic resources for optimizing male fertility. In addition, we find that ZmMSH7 represents a candidate for improvement of grain yield.
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