ArticlePlanta2009
Morphological and molecular evidences for DNA introgression in haploid induction via a high oil inducer CAUHOI in maize.
Article in Planta, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
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36 citing papers in PubMed.
- Decades' progress and prospects on maize functional genomics and molecular breeding.Science China. Life sciences · 2025Review
- Genes and genetics belong to maize haploid induction.Frontiers in plant science · 2025Review
- Haploid identification in maize.Frontiers in plant science · 2024Review
- Anther Culture-Derived Haploids ofPlants (Basel, Switzerland) · 2022Article
- Genetic mapping and prediction of flowering time and plant height in a maize Stiff Stalk MAGIC population.Genetics · 2022Article
- QTL Mapping for Haploid Inducibility Using Genotyping by Sequencing in Maize.Plants (Basel, Switzerland) · 2022Article
- Rapid and Synchronous Breeding of Cytoplasmic Male Sterile and Maintainer Line Through Mitochondrial DNA Rearrangement Using Doubled Haploid Inducer inFrontiers in plant science · 2022Article
- Overexpression of ModifiedFrontiers in plant science · 2022Article
- Maternal karyogene and cytoplasmic genotype affect the induction efficiency of doubled haploid inducer in Brassica napus.BMC plant biology · 2021Article
- Haploid induction and its application in maize breeding.Molecular breeding : new strategies in plant improvement · 2021Article
- Improving the sorting efficiency of maize haploid kernels using an NMR-based method with oil content double thresholds.Plant methods · 2021Article
- Maize In Planta Haploid Inducer Lines: A Cornerstone for Doubled Haploid Technology.Methods in molecular biology (Clifton, N.J.) · 2021Review
- Development ofPlants (Basel, Switzerland) · 2020Article
- Puzzling out plant reproduction by haploid induction for innovations in plant breeding.Nature plants · 2020Review
- Breeding Maize Maternal Haploid Inducers.Plants (Basel, Switzerland) · 2020Review
- I am all ears: Maximize maize doubled haploid success by promoting axillary branch elongation.Plant direct · 2020Article
- Mapping of QTL for kernel abortion caused by in vivo haploid induction in maize (Zea mays L.).PloS one · 2020Article
- Doubled haploid technology for line development in maize: technical advances and prospects.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Review
- Genome-wide Inference of Somatic Translocation Events During Potato Dihaploid Production.The plant genome · 2019Article
- State-of-the-art and novel developments of in vivo haploid technologies.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Review
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4 authors.
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Abstract
The phenomenon of maternal haploid induction in maize was first described many years ago, but the underlying mechanism is still unclear. In this study, the Stock-6-derived, haploid-inducing line CAUHOI with high kernel oil content (KOC), was used as the pollinator to produce maternal haploids from the maize hybrid ZD958 with low KOC. CAUHOI is homozygous for the dominant marker gene R1-nj. Haploids were identified by morphological and cytological investigations. The frequency of haploid induction from this cross was 2.21%. Unexpectedly, many haploid kernels had weakly pigmented purple color on the embryo, and some haploid kernels had high KOC. Simple sequence repeat (SSR) analysis showed that 43.18% of the haploids carried segments from CAUHOI, and a small proportion (average 1.84%) of the genome of CAUHOI was introgressed into haploids. Haploid kernels with high KOC had a higher frequency of segment introgression from CAUHOI (2.92%) than that in haploid kernels with low KOC (1.79%), showing that the marker gene R1-nj and high-oil genes from CAUHOI were expressed during the development of some haploid embryos, and confirmed that the DNA introgression from the inducer parent occurred during maternal haploid induction. Together, these results suggested that the chromosome elimination was probably responsible for haploid induction in maize, and late somatic elimination might occur. Several possible mechanisms underlying haploid formation are discussed.
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