Doubled haploid technology for line development in maize: technical advances and prospects

Doubled haploid (DH) technology has become an integral part of many commercial maize breeding programs as DH lines offer several economic, logistic and genetic benefits over conventional inbred lines. Further, new advances in DH technology continue to improve the efficiency of DH line development an...

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Detalles Bibliográficos
Autores: Chaikam, V., Molenaar, W., Melchinger, A.E., Prasanna, B.M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:México
Institución:Centro Internacional de Mejoramiento de Maíz y Trigo
Repositorio:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
OAI Identifier:oai:repository.cimmyt.org:10883/20309
Acceso en línea:https://hdl.handle.net/10883/20309
Access Level:acceso abierto
Palabra clave:HAPLOIDY
MAIZE
PLANT BREEDING
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spelling Doubled haploid technology for line development in maize: technical advances and prospectsChaikam, V.Molenaar, W.Melchinger, A.E.Prasanna, B.M.HAPLOIDYMAIZEPLANT BREEDINGDoubled haploid (DH) technology has become an integral part of many commercial maize breeding programs as DH lines offer several economic, logistic and genetic benefits over conventional inbred lines. Further, new advances in DH technology continue to improve the efficiency of DH line development and fuel its increased adoption in breeding programs worldwide. The established method for maize DH production covered in this review involves in vivo induction of maternal haploids by a male haploid inducer genotype, identification of haploids from diploids at the seed or seedling stage, chromosome doubling of haploid (D0) seedlings and finally, selfing of fertile D0 plants. Development of haploid inducers with high haploid induction rates and adaptation to different target environments have facilitated increased adoption of DH technology in the tropics. New marker systems for haploid identification, such as the red root marker and high oil marker, are being increasingly integrated into new haploid inducers and have the potential to make DH technology accessible in germplasm such as some Flint, landrace, or tropical material, where the standard R1-nj marker is inhibited. Automation holds great promise to further reduce the cost and time in haploid identification. Increasing success rates in chromosome doubling protocols and/or reducing environmental and human toxicity of chromosome doubling protocols, including research on genetic improvement in spontaneous chromosome doubling, have the potential to greatly reduce the production costs per DH line.3227-3243Springer2019-10-05T00:05:19Z2019-10-05T00:05:19Z2019Published Versioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePDFapplication/pdf0040-5752 (Print)https://hdl.handle.net/10883/2030910.1007/s00122-019-03433-x12132Theoretical and Applied Geneticsreponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYTinstname:Centro Internacional de Mejoramiento de Maíz y Trigoinstacron:CIMMYTEnglishBerlin (Germany)CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.Open Accessinfo:eu-repo/semantics/openAccessoai:repository.cimmyt.org:10883/203092024-10-11T19:56:02Z
dc.title.none.fl_str_mv Doubled haploid technology for line development in maize: technical advances and prospects
title Doubled haploid technology for line development in maize: technical advances and prospects
spellingShingle Doubled haploid technology for line development in maize: technical advances and prospects
Chaikam, V.
HAPLOIDY
MAIZE
PLANT BREEDING
title_short Doubled haploid technology for line development in maize: technical advances and prospects
title_full Doubled haploid technology for line development in maize: technical advances and prospects
title_fullStr Doubled haploid technology for line development in maize: technical advances and prospects
title_full_unstemmed Doubled haploid technology for line development in maize: technical advances and prospects
title_sort Doubled haploid technology for line development in maize: technical advances and prospects
dc.creator.none.fl_str_mv Chaikam, V.
Molenaar, W.
Melchinger, A.E.
Prasanna, B.M.
author Chaikam, V.
author_facet Chaikam, V.
Molenaar, W.
Melchinger, A.E.
Prasanna, B.M.
author_role author
author2 Molenaar, W.
Melchinger, A.E.
Prasanna, B.M.
author2_role author
author
author
dc.subject.none.fl_str_mv HAPLOIDY
MAIZE
PLANT BREEDING
topic HAPLOIDY
MAIZE
PLANT BREEDING
description Doubled haploid (DH) technology has become an integral part of many commercial maize breeding programs as DH lines offer several economic, logistic and genetic benefits over conventional inbred lines. Further, new advances in DH technology continue to improve the efficiency of DH line development and fuel its increased adoption in breeding programs worldwide. The established method for maize DH production covered in this review involves in vivo induction of maternal haploids by a male haploid inducer genotype, identification of haploids from diploids at the seed or seedling stage, chromosome doubling of haploid (D0) seedlings and finally, selfing of fertile D0 plants. Development of haploid inducers with high haploid induction rates and adaptation to different target environments have facilitated increased adoption of DH technology in the tropics. New marker systems for haploid identification, such as the red root marker and high oil marker, are being increasingly integrated into new haploid inducers and have the potential to make DH technology accessible in germplasm such as some Flint, landrace, or tropical material, where the standard R1-nj marker is inhibited. Automation holds great promise to further reduce the cost and time in haploid identification. Increasing success rates in chromosome doubling protocols and/or reducing environmental and human toxicity of chromosome doubling protocols, including research on genetic improvement in spontaneous chromosome doubling, have the potential to greatly reduce the production costs per DH line.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-05T00:05:19Z
2019-10-05T00:05:19Z
2019
dc.type.none.fl_str_mv Published Version
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0040-5752 (Print)
https://hdl.handle.net/10883/20309
10.1007/s00122-019-03433-x
identifier_str_mv 0040-5752 (Print)
10.1007/s00122-019-03433-x
url https://hdl.handle.net/10883/20309
dc.language.none.fl_str_mv English
language_invalid_str_mv English
dc.rights.none.fl_str_mv Open Access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Open Access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv PDF
application/pdf
dc.coverage.none.fl_str_mv Berlin (Germany)
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv 12
132
Theoretical and Applied Genetics
reponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
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