2024
DOI: 10.3389/fpls.2023.1320660
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Development of doubled haploid inducer lines facilitates selection of superior haploid inducers in maize

Yu-Ru Chen,
Thomas Lübberstedt,
Ursula K Frei

Abstract: Haploid inducers are key components of doubled haploid (DH) technology in maize. Robust agronomic performance and better haploid induction ability of inducers are persistently sought through genetic improvement. We herein developed C1-I inducers enabling large-scale in vivo haploid induction of inducers and discovered superior inducers from the DH progenies. The haploid induction rate (HIR) of C1-I inducers ranged between 5.8% and 12.0%. Overall, the success rate of DH production was 13% on average across the … Show more

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Cited by 6 publications
(1 citation statement)
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“…Crossbreeding of plants, including natural and artificial hybrids, is an important approach for the generation of new cultivars. In plant breeding, large numbers of genetically stable and homozygous individuals are necessary, and complete homozygote breeding materials are rapidly obtained with doubled haploid technology, which is currently a routine part of breeding programs [39,40]. In this study, according to the 16 pairs of SSR markers, most of the cultivars had homozygous genotypes, which may be conducive to the inheritance of target genetic information in cross-breeding.…”
Section: Discussionmentioning
confidence: 93%
“…Crossbreeding of plants, including natural and artificial hybrids, is an important approach for the generation of new cultivars. In plant breeding, large numbers of genetically stable and homozygous individuals are necessary, and complete homozygote breeding materials are rapidly obtained with doubled haploid technology, which is currently a routine part of breeding programs [39,40]. In this study, according to the 16 pairs of SSR markers, most of the cultivars had homozygous genotypes, which may be conducive to the inheritance of target genetic information in cross-breeding.…”
Section: Discussionmentioning
confidence: 93%