Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methods

Agronomic evaluations demonstrated that a modification of the classical full-sib reciprocal recurrent selection (RRS-FS) which, in addition to crosses, uses S2 families evaluation (RRS-FS-S2) is more efficient than the classical method for developing high-yielding crosses between two varieties. The...

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Autores: Ordás López, Bernardo, Malvar Pintos, Rosa Ana, Díaz Velasco, Raquel, Butrón Gómez, Ana María
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/114652
Acceso en línea:http://hdl.handle.net/10261/114652
Access Level:acceso abierto
Palabra clave:Hardy–Weinberg equilibrium
Linkage disequilibrium
Recurrent selection
Molecular markers
Population genetics
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spelling Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methodsOrdás López, BernardoMalvar Pintos, Rosa AnaDíaz Velasco, RaquelButrón Gómez, Ana MaríaHardy–Weinberg equilibriumLinkage disequilibriumRecurrent selectionMolecular markersPopulation geneticsPopulation geneticsAgronomic evaluations demonstrated that a modification of the classical full-sib reciprocal recurrent selection (RRS-FS) which, in addition to crosses, uses S2 families evaluation (RRS-FS-S2) is more efficient than the classical method for developing high-yielding crosses between two varieties. The objective of this study was to investigate the changes in genetic diversity and structure after performing RRS-FS and RRS-FS-S2 selections. RRS-FS-S2 reduced more the variability, produced more differentiation between cycles of selection derived from the same materials but less between reciprocal populations, and produced a more clear change in the contribution of the parental lines than RRS-FS. On the other hand, the type of selection method did not have a considerable effect on the structure of the populations measured as departure of Hardy–Weinberg (HW) equilibrium at single markers and on linkage disequilibrium (LD) between pairs of markers. We identified some individual markers which were not in HW equilibrium in several populations probably due to genes favouring assortative mating. We also found pairs of markers which increased their LD with selection probably due to epistasis.Research was supported by the Spanish Plan of Research and Development (AGL2012-33415). Bernardo Ordas acknowledges a Ramon y Cajal contract from the Ministry of Economy and Competitiveness.Peer reviewedSpringer NatureConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201520152015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/114652reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s11032-015-0308-3Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1146522026-05-22T06:33:51Z
dc.title.none.fl_str_mv Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methods
title Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methods
spellingShingle Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methods
Ordás López, Bernardo
Hardy–Weinberg equilibrium
Linkage disequilibrium
Recurrent selection
Molecular markers
Population genetics
Population genetics
title_short Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methods
title_full Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methods
title_fullStr Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methods
title_full_unstemmed Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methods
title_sort Molecular changes in two maize (Zea mays L.) synthetics after reciprocal selection with two alternative methods
dc.creator.none.fl_str_mv Ordás López, Bernardo
Malvar Pintos, Rosa Ana
Díaz Velasco, Raquel
Butrón Gómez, Ana María
author Ordás López, Bernardo
author_facet Ordás López, Bernardo
Malvar Pintos, Rosa Ana
Díaz Velasco, Raquel
Butrón Gómez, Ana María
author_role author
author2 Malvar Pintos, Rosa Ana
Díaz Velasco, Raquel
Butrón Gómez, Ana María
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Hardy–Weinberg equilibrium
Linkage disequilibrium
Recurrent selection
Molecular markers
Population genetics
Population genetics
topic Hardy–Weinberg equilibrium
Linkage disequilibrium
Recurrent selection
Molecular markers
Population genetics
Population genetics
description Agronomic evaluations demonstrated that a modification of the classical full-sib reciprocal recurrent selection (RRS-FS) which, in addition to crosses, uses S2 families evaluation (RRS-FS-S2) is more efficient than the classical method for developing high-yielding crosses between two varieties. The objective of this study was to investigate the changes in genetic diversity and structure after performing RRS-FS and RRS-FS-S2 selections. RRS-FS-S2 reduced more the variability, produced more differentiation between cycles of selection derived from the same materials but less between reciprocal populations, and produced a more clear change in the contribution of the parental lines than RRS-FS. On the other hand, the type of selection method did not have a considerable effect on the structure of the populations measured as departure of Hardy–Weinberg (HW) equilibrium at single markers and on linkage disequilibrium (LD) between pairs of markers. We identified some individual markers which were not in HW equilibrium in several populations probably due to genes favouring assortative mating. We also found pairs of markers which increased their LD with selection probably due to epistasis.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/114652
url http://hdl.handle.net/10261/114652
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s11032-015-0308-3
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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