Effect of Recurrent Selection on the Genetic Structure of Two Broad-Based Spanish Maize Populations
Maize (Zea mays L.) landraces are useful materials that can introduce new diversity into breeding programs, but they will need to be selected to maximize their agronomic performance. The objective of this study was to use molecular markers to investigate the changes in the genetic diversity and stru...
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| Veröffentlicht in: | Crop science 2012-07, Vol.52 (4), p.1493-1502 |
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| creator | Romay, M. Cinta Butron, Ana Ordas, Amando Revilla, Pedro Ordas, Bernardo |
| description | Maize (Zea mays L.) landraces are useful materials that can introduce new diversity into breeding programs, but they will need to be selected to maximize their agronomic performance. The objective of this study was to use molecular markers to investigate the changes in the genetic diversity and structure over the cycles of a maize breeding program that combined intra- and interpopulation recurrent selection for grain yield in two broad-based Spanish maize composites. Using 76 polymorphic simple sequence repeat (SSR) markers and two flowering time related indels, this study looked at 10 populations derived from a breeding program designed to exploit the heterotic pattern northern Spain × southern Spain. Agronomic evaluations demonstrated that the selection effectively increased the yield of the composites and their crosses, but, as the molecular data from this study show, the improvement was at the expense of some variability. The genetic distance between populations increased with selection, which is accordant with the increment of heterosis found in the agronomic evaluation. The changes observed were consistent with a model in which genetic drift is the main force, although selection could also play a role in the changes observed in EPS7 and EPS13. Allele frequencies changed significantly for one marker during intrapopulation selection and three markers under interpopulation selection, pointing to regions 3.04, 7.03, 9.01, and 9.03 as quantitative trait loci (QTL) related to grain yield. |
| doi_str_mv | 10.2135/cropsci2011.10.0552 |
| format | Article |
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Cinta ; Butron, Ana ; Ordas, Amando ; Revilla, Pedro ; Ordas, Bernardo</creator><creatorcontrib>Romay, M. Cinta ; Butron, Ana ; Ordas, Amando ; Revilla, Pedro ; Ordas, Bernardo</creatorcontrib><description>Maize (Zea mays L.) landraces are useful materials that can introduce new diversity into breeding programs, but they will need to be selected to maximize their agronomic performance. The objective of this study was to use molecular markers to investigate the changes in the genetic diversity and structure over the cycles of a maize breeding program that combined intra- and interpopulation recurrent selection for grain yield in two broad-based Spanish maize composites. Using 76 polymorphic simple sequence repeat (SSR) markers and two flowering time related indels, this study looked at 10 populations derived from a breeding program designed to exploit the heterotic pattern northern Spain × southern Spain. Agronomic evaluations demonstrated that the selection effectively increased the yield of the composites and their crosses, but, as the molecular data from this study show, the improvement was at the expense of some variability. The genetic distance between populations increased with selection, which is accordant with the increment of heterosis found in the agronomic evaluation. The changes observed were consistent with a model in which genetic drift is the main force, although selection could also play a role in the changes observed in EPS7 and EPS13. Allele frequencies changed significantly for one marker during intrapopulation selection and three markers under interpopulation selection, pointing to regions 3.04, 7.03, 9.01, and 9.03 as quantitative trait loci (QTL) related to grain yield.</description><identifier>ISSN: 1435-0653</identifier><identifier>ISSN: 0011-183X</identifier><identifier>EISSN: 1435-0653</identifier><identifier>DOI: 10.2135/cropsci2011.10.0552</identifier><identifier>CODEN: CRPSAY</identifier><language>eng</language><publisher>Madison, WI: Crop Science Society of America</publisher><subject>agronomic traits ; Agronomy. Soil science and plant productions ; Biological and medical sciences ; Breeding schemes. Varia ; Climate change ; Corn ; Crop yield ; crossing ; flowering ; Fundamental and applied biological sciences. Psychology ; gene frequency ; Gene mapping ; genetic distance ; Genetic diversity ; genetic drift ; genetic markers ; Genetic structure ; genetic variation ; Genetics and breeding of economic plants ; grain yield ; heterosis ; Inbreeding ; landraces ; microsatellite repeats ; Plant breeding ; Plant breeding: fundamental aspects and methodology ; quantitative trait loci ; R&D ; recurrent selection ; Research & development ; Selective breeding ; Studies ; Zea mays</subject><ispartof>Crop science, 2012-07, Vol.52 (4), p.1493-1502</ispartof><rights>Copyright © by the Crop Science Society of America, Inc.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright American Society of Agronomy Jul/Aug 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3942-27fb9a48c37a4238793d5aa4700589b09252555566a3d5c2478f1973d041cb3c3</citedby><cites>FETCH-LOGICAL-c3942-27fb9a48c37a4238793d5aa4700589b09252555566a3d5c2478f1973d041cb3c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.2135%2Fcropsci2011.10.0552$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.2135%2Fcropsci2011.10.0552$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27923,27924,45573,45574</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26106963$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Romay, M. Cinta</creatorcontrib><creatorcontrib>Butron, Ana</creatorcontrib><creatorcontrib>Ordas, Amando</creatorcontrib><creatorcontrib>Revilla, Pedro</creatorcontrib><creatorcontrib>Ordas, Bernardo</creatorcontrib><title>Effect of Recurrent Selection on the Genetic Structure of Two Broad-Based Spanish Maize Populations</title><title>Crop science</title><description>Maize (Zea mays L.) landraces are useful materials that can introduce new diversity into breeding programs, but they will need to be selected to maximize their agronomic performance. The objective of this study was to use molecular markers to investigate the changes in the genetic diversity and structure over the cycles of a maize breeding program that combined intra- and interpopulation recurrent selection for grain yield in two broad-based Spanish maize composites. Using 76 polymorphic simple sequence repeat (SSR) markers and two flowering time related indels, this study looked at 10 populations derived from a breeding program designed to exploit the heterotic pattern northern Spain × southern Spain. Agronomic evaluations demonstrated that the selection effectively increased the yield of the composites and their crosses, but, as the molecular data from this study show, the improvement was at the expense of some variability. The genetic distance between populations increased with selection, which is accordant with the increment of heterosis found in the agronomic evaluation. The changes observed were consistent with a model in which genetic drift is the main force, although selection could also play a role in the changes observed in EPS7 and EPS13. Allele frequencies changed significantly for one marker during intrapopulation selection and three markers under interpopulation selection, pointing to regions 3.04, 7.03, 9.01, and 9.03 as quantitative trait loci (QTL) related to grain yield.</description><subject>agronomic traits</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Breeding schemes. Varia</subject><subject>Climate change</subject><subject>Corn</subject><subject>Crop yield</subject><subject>crossing</subject><subject>flowering</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>gene frequency</subject><subject>Gene mapping</subject><subject>genetic distance</subject><subject>Genetic diversity</subject><subject>genetic drift</subject><subject>genetic markers</subject><subject>Genetic structure</subject><subject>genetic variation</subject><subject>Genetics and breeding of economic plants</subject><subject>grain yield</subject><subject>heterosis</subject><subject>Inbreeding</subject><subject>landraces</subject><subject>microsatellite repeats</subject><subject>Plant breeding</subject><subject>Plant breeding: fundamental aspects and methodology</subject><subject>quantitative trait loci</subject><subject>R&D</subject><subject>recurrent selection</subject><subject>Research & development</subject><subject>Selective breeding</subject><subject>Studies</subject><subject>Zea mays</subject><issn>1435-0653</issn><issn>0011-183X</issn><issn>1435-0653</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqNUVtLwzAYLaLgvPwCHwyIj9Vc2-bRlTkHE2Wdz-VblriO2tSkRfTXm7IhezQE8nG-c4GTKLoi-I4SJu6Vs61XFcWE3AUMC0GPohHhTMQ4Eez4YD6NzrzfYoxTmYpRpCbGaNUha9BCq9453XSo0HXAKtugcLuNRlPd6K5SqOhcr7re6YG__LJo7Cys4zF4vUZFC03lN-gZqh-NXm3b1zCY-IvoxEDt9eX-PY_eHifL_Cmev0xn-cM8VkxyGtPUrCTwTLEUOGVZKtlaAPAUY5HJFZZUUBFOkkBYKMrTzBCZsjXmRK2YYufRzc63dfaz174rt7Z3TYgsCaacB31GA4vtWKE07502ZeuqD3DfgVQObZYHbQ7Y0GZQ3e69wSuojYNGVf5PShOCE5mwwHvc8b6qWn__x7rMi5zmi5fXIp8NOMH7wOudkQFbwrsLYW9F2IvwdYJLRtgvlz2TSw</recordid><startdate>201207</startdate><enddate>201207</enddate><creator>Romay, M. 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Cinta ; Butron, Ana ; Ordas, Amando ; Revilla, Pedro ; Ordas, Bernardo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3942-27fb9a48c37a4238793d5aa4700589b09252555566a3d5c2478f1973d041cb3c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>agronomic traits</topic><topic>Agronomy. Soil science and plant productions</topic><topic>Biological and medical sciences</topic><topic>Breeding schemes. Varia</topic><topic>Climate change</topic><topic>Corn</topic><topic>Crop yield</topic><topic>crossing</topic><topic>flowering</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>gene frequency</topic><topic>Gene mapping</topic><topic>genetic distance</topic><topic>Genetic diversity</topic><topic>genetic drift</topic><topic>genetic markers</topic><topic>Genetic structure</topic><topic>genetic variation</topic><topic>Genetics and breeding of economic plants</topic><topic>grain yield</topic><topic>heterosis</topic><topic>Inbreeding</topic><topic>landraces</topic><topic>microsatellite repeats</topic><topic>Plant breeding</topic><topic>Plant breeding: fundamental aspects and methodology</topic><topic>quantitative trait loci</topic><topic>R&D</topic><topic>recurrent selection</topic><topic>Research & development</topic><topic>Selective breeding</topic><topic>Studies</topic><topic>Zea mays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Romay, M. 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Cinta</au><au>Butron, Ana</au><au>Ordas, Amando</au><au>Revilla, Pedro</au><au>Ordas, Bernardo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Recurrent Selection on the Genetic Structure of Two Broad-Based Spanish Maize Populations</atitle><jtitle>Crop science</jtitle><date>2012-07</date><risdate>2012</risdate><volume>52</volume><issue>4</issue><spage>1493</spage><epage>1502</epage><pages>1493-1502</pages><issn>1435-0653</issn><issn>0011-183X</issn><eissn>1435-0653</eissn><coden>CRPSAY</coden><abstract>Maize (Zea mays L.) landraces are useful materials that can introduce new diversity into breeding programs, but they will need to be selected to maximize their agronomic performance. The objective of this study was to use molecular markers to investigate the changes in the genetic diversity and structure over the cycles of a maize breeding program that combined intra- and interpopulation recurrent selection for grain yield in two broad-based Spanish maize composites. Using 76 polymorphic simple sequence repeat (SSR) markers and two flowering time related indels, this study looked at 10 populations derived from a breeding program designed to exploit the heterotic pattern northern Spain × southern Spain. Agronomic evaluations demonstrated that the selection effectively increased the yield of the composites and their crosses, but, as the molecular data from this study show, the improvement was at the expense of some variability. The genetic distance between populations increased with selection, which is accordant with the increment of heterosis found in the agronomic evaluation. The changes observed were consistent with a model in which genetic drift is the main force, although selection could also play a role in the changes observed in EPS7 and EPS13. Allele frequencies changed significantly for one marker during intrapopulation selection and three markers under interpopulation selection, pointing to regions 3.04, 7.03, 9.01, and 9.03 as quantitative trait loci (QTL) related to grain yield.</abstract><cop>Madison, WI</cop><pub>Crop Science Society of America</pub><doi>10.2135/cropsci2011.10.0552</doi><tpages>10</tpages></addata></record> |
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| subjects | agronomic traits Agronomy. Soil science and plant productions Biological and medical sciences Breeding schemes. Varia Climate change Corn Crop yield crossing flowering Fundamental and applied biological sciences. Psychology gene frequency Gene mapping genetic distance Genetic diversity genetic drift genetic markers Genetic structure genetic variation Genetics and breeding of economic plants grain yield heterosis Inbreeding landraces microsatellite repeats Plant breeding Plant breeding: fundamental aspects and methodology quantitative trait loci R&D recurrent selection Research & development Selective breeding Studies Zea mays |
| title | Effect of Recurrent Selection on the Genetic Structure of Two Broad-Based Spanish Maize Populations |
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