ArticleEuphytica: Netherlands journal of plant breeding2019
Genome-wide association study to identify genomic regions influencing spontaneous fertility in maize haploids.
Article in Euphytica: Netherlands journal of plant breeding, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed.
- Somatic genome doubling determines fertility in maize haploids of inbred A427.Frontiers in plant science · 2026Article
- Grading evaluation of haploid fertility restoration traits based on inception-ResNet in maize.Plant phenomics (Washington, D.C.) · 2025Article
- CRISPR/Cas-mediated genome editing: playing a versatile role in mitigating the challenges of sustainable rice improvement.3 Biotech · 2025Review
- Association mapping of haploid male fertility in sweet corn.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Advances in doubled haploid technology for rice breeding: mechanisms, applications, and future perspectives.Frontiers in plant science · 2025Review
- Genes and genetics belong to maize haploid induction.Frontiers in plant science · 2025Review
- Genome-Wide Diversity in Lowland and Highland Maize Landraces From Southern South America: Population Genetics Insights to Assist Conservation.Evolutionary applications · 2024Article
- A novel in vivo genome editing doubled haploid system for Zea mays L.Nature plants · 2024Article
- Article
- Paclitaxel and Caffeine-Taurine, New Colchicine Alternatives for Chromosomes Doubling in Maize Haploid Breeding.International journal of molecular sciences · 2023Article
- Development of doubled haploid inducer lines facilitates selection of superior haploid inducers in maize.Frontiers in plant science · 2023Article
- Maternal haploid waxy maize, environmental effects on grain yield, and quality parameters.PloS one · 2022Article
- Review
- Highly efficient and genotype-independent barley gene editing based on anther culture.Plant communications · 2021Article
- Applications of Doubled Haploids in Plant Breeding and Applied Research.Methods in molecular biology (Clifton, N.J.) · 2021Review
- Maize In Planta Haploid Inducer Lines: A Cornerstone for Doubled Haploid Technology.Methods in molecular biology (Clifton, N.J.) · 2021Review
- Diallelic Analysis of Tropical Maize Germplasm Response to Spontaneous Chromosomal Doubling.Plants (Basel, Switzerland) · 2020Article
- Combination of Linkage Mapping, GWAS, and GP to Dissect the Genetic Basis of Common Rust Resistance in Tropical Maize Germplasm.International journal of molecular sciences · 2020Article
- QTL Mapping and Prediction of Haploid Male Fertility Traits in Maize (Plants (Basel, Switzerland) · 2020Article
- QTL mapping of spontaneous haploid genome doubling using genotyping-by-sequencing in maize (Zea mays L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Efficient production and use of doubled haploid lines can greatly accelerate genetic gains in maize breeding programs. One of the critical steps in standard doubled haploid line production is doubling the haploid genome using toxic and costly mitosis-inhibiting chemicals to achieve fertility in haploids. Alternatively, fertility may be spontaneously restored by natural chromosomal doubling, although generally at a rate too low for practical applications in most germplasm. This is the first large-scale genome-wise association study to analyze spontaneous chromosome doubling in haploids derived from tropical maize inbred lines. Induction crosses between tropicalized haploid inducers and 400 inbred lines were made, and the resulting haploid plants were assessed for haploid male fertility which refers to pollen production and haploid fertility which refers to seed production upon self-fertilization. A small number of genotypes were highly fertile and these fertility traits were highly heritable. Agronomic traits like plant height, ear height and tassel branch number were positively correlated with fertility traits. In contrast, haploid induction rate of the source germplasm and plant aspect were not correlated to fertility traits. Several genomic regions and candidate genes were identified that may control spontaneous fertility restoration. Overall, the study revealed the presence of large variation for both haploid male fertility and haploid fertility which can be potentially exploited for improving the efficiency of doubled haploid derivation in tropical maize germplasm.
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