Breeding Maize Maternal Haploid Inducers

dc.contributor.author Trentin, Henrique Uliana
dc.contributor.author Frei, Ursula
dc.contributor.author Lubberstedt, Thomas
dc.contributor.author Lubberstedt, Thomas
dc.contributor.department Agronomy
dc.date 2020-05-19T15:21:47.000
dc.date.accessioned 2020-06-29T23:06:53Z
dc.date.available 2020-06-29T23:06:53Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 2020
dc.date.issued 2020-05-12
dc.description.abstract <p>Maize doubled haploid (DH) lines are usually created in vivo, through crosses with maternal haploid inducers. These inducers have the inherent ability of generating seeds with haploid embryos when used to pollinate other genotypes. The resulting haploid plants are treated with a doubling agent and self-pollinated, producing completely homozygous seeds. This rapid method of inbred line production reduces the length of breeding cycles and, consequently, increases genetic gain. Such advantages explain the wide adoption of this technique by large, well-established maize breeding programs. However, a slower rate of adoption was observed in medium to small-scale breeding programs. The high price and/or lack of environmental adaptation of inducers available for licensing, or the poor performance of those free of cost, might explain why smaller operations did not take full advantage of this technique. The lack of adapted inducers is especially felt in tropical countries, where inducer breeding efforts are more recent. Therefore, defining optimal breeding approaches for inducer development could benefit many breeding programs which are in the process of adopting the DH technique. In this manuscript, we review traits important to maize maternal haploid inducers, explain their genetic basis, listing known genes and quantitative trait loci (QTL), and discuss different breeding approaches for inducer development. The performance of haploid inducers has an important impact on the cost of DH line production.</p>
dc.description.comments <p>This article is published as Uliana Trentin, H.; Frei, U.K.; Lübberstedt, T. Breeding Maize Maternal Haploid Inducers. <em>Plants</em> 2020, <em>9</em>, 614. doi: <a href="https://doi.org/10.3390/plants9050614">10.3390/plants9050614</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/655/
dc.identifier.articleid 1704
dc.identifier.contextkey 17795278
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/655
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/5029
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/655/2020_Lubberstedt_BreedingMaize.pdf|||Sat Jan 15 01:24:28 UTC 2022
dc.source.uri 10.3390/plants9050614
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Plant Breeding and Genetics
dc.subject.keywords maize maternal haploid inducers
dc.subject.keywords doubled haploid technique
dc.subject.keywords haploid seed production
dc.subject.keywords haploid selection and verification
dc.subject.keywords inducer cultivars
dc.subject.keywords breeding approaches for inducer development
dc.title Breeding Maize Maternal Haploid Inducers
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 4e4330cd-db15-4ac5-8924-41119139cf32
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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