QTL mapping for resistance to SCMV in chinese maize germplasm
In this report we identified QTLs conferring resistance to Sugarcane Mosaic Virus (SCMV) and their use in marker-assisted selection (MAS) was described. The genetic linkage map covering 1543 cM on ten chromosomes with an average interval of 17.3 cM was constructed with 89 SSR marker loci based on a maize population consisting of 184 F 2 individuals from the cross Huangzao4 (resistant)xYe107 (susceptible). The population of 184 F 2:3 families was phenotyped for resistance to SCMV under artificial inoculation at four developmental stages (seedling, elongation, anthesis, and grain-filling). With the method of composite interval mapping, three QTLs conferring resistance to SCMV were detected on chromosomes 3, 5, and 10 at seedling stage; four QTLs on chromosomes 3, 5, 6, 10 at elongation and anthesis stages; and five on chromosomes 1, 3, 5, 6, 10 at grain-filling stage. Both QTLs on chromosomes 3 and 10 showed significant additive gene effects, while the other three QTLs on chromosomes 1, 5 and 6 displayed dominant, over-dominant and partial dominant effects, respectively. Two major QTLs on chromosomes 3 R-scm1 and 10 R-scm3, explaining 7.2% to 26.9% and 15.3% to 15.8% of the phenotypic variance, were consistently detected at four stages. Based on this study, it was recommended that the MAS approach for SCMV resistance, combined with conventional selection method, could employ the QTLs on chromosomes 3, 5 and 10
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Consiglio per la Ricerca e la sperimentazione in Agricoltura, Unità di Ricerca per la Maiscoltura
2003
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Subjects: | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY, ZEA MAYS, SUGARCANE MOSAIC VIRUS, QUANTITATIVE TRAIT LOCI, DEVELOPMENTAL STAGES, |
Online Access: | http://hdl.handle.net/10883/2985 |
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dig-cimmyt-10883-29852023-12-01T15:44:20Z QTL mapping for resistance to SCMV in chinese maize germplasm Zhang, S.H. Li, X.H. Zhenhua Wang George, M.L.C. Jeffers, D.P. Wang, F.G. Liu, X.D. Li, M.S. Yuan Lixing AGRICULTURAL SCIENCES AND BIOTECHNOLOGY ZEA MAYS SUGARCANE MOSAIC VIRUS QUANTITATIVE TRAIT LOCI DEVELOPMENTAL STAGES In this report we identified QTLs conferring resistance to Sugarcane Mosaic Virus (SCMV) and their use in marker-assisted selection (MAS) was described. The genetic linkage map covering 1543 cM on ten chromosomes with an average interval of 17.3 cM was constructed with 89 SSR marker loci based on a maize population consisting of 184 F 2 individuals from the cross Huangzao4 (resistant)xYe107 (susceptible). The population of 184 F 2:3 families was phenotyped for resistance to SCMV under artificial inoculation at four developmental stages (seedling, elongation, anthesis, and grain-filling). With the method of composite interval mapping, three QTLs conferring resistance to SCMV were detected on chromosomes 3, 5, and 10 at seedling stage; four QTLs on chromosomes 3, 5, 6, 10 at elongation and anthesis stages; and five on chromosomes 1, 3, 5, 6, 10 at grain-filling stage. Both QTLs on chromosomes 3 and 10 showed significant additive gene effects, while the other three QTLs on chromosomes 1, 5 and 6 displayed dominant, over-dominant and partial dominant effects, respectively. Two major QTLs on chromosomes 3 R-scm1 and 10 R-scm3, explaining 7.2% to 26.9% and 15.3% to 15.8% of the phenotypic variance, were consistently detected at four stages. Based on this study, it was recommended that the MAS approach for SCMV resistance, combined with conventional selection method, could employ the QTLs on chromosomes 3, 5 and 10 307-312 2013-06-30T05:24:18Z 2013-06-30T05:24:18Z 2003 Article http://hdl.handle.net/10883/2985 English 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 Access PDF China Consiglio per la Ricerca e la sperimentazione in Agricoltura, Unità di Ricerca per la Maiscoltura 48 Maydica |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY ZEA MAYS SUGARCANE MOSAIC VIRUS QUANTITATIVE TRAIT LOCI DEVELOPMENTAL STAGES AGRICULTURAL SCIENCES AND BIOTECHNOLOGY ZEA MAYS SUGARCANE MOSAIC VIRUS QUANTITATIVE TRAIT LOCI DEVELOPMENTAL STAGES |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY ZEA MAYS SUGARCANE MOSAIC VIRUS QUANTITATIVE TRAIT LOCI DEVELOPMENTAL STAGES AGRICULTURAL SCIENCES AND BIOTECHNOLOGY ZEA MAYS SUGARCANE MOSAIC VIRUS QUANTITATIVE TRAIT LOCI DEVELOPMENTAL STAGES Zhang, S.H. Li, X.H. Zhenhua Wang George, M.L.C. Jeffers, D.P. Wang, F.G. Liu, X.D. Li, M.S. Yuan Lixing QTL mapping for resistance to SCMV in chinese maize germplasm |
description |
In this report we identified QTLs conferring resistance to Sugarcane Mosaic Virus (SCMV) and their use in marker-assisted selection (MAS) was described. The genetic linkage map covering 1543 cM on ten chromosomes with an average interval of 17.3 cM was constructed with 89 SSR marker loci based on a maize population consisting of 184 F 2 individuals from the cross Huangzao4 (resistant)xYe107 (susceptible). The population of 184 F 2:3 families was phenotyped for resistance to SCMV under artificial inoculation at four developmental stages (seedling, elongation, anthesis, and grain-filling). With the method of composite interval mapping, three QTLs conferring resistance to SCMV were detected on chromosomes 3, 5, and 10 at seedling stage; four QTLs on chromosomes 3, 5, 6, 10 at elongation and anthesis stages; and five on chromosomes 1, 3, 5, 6, 10 at grain-filling stage. Both QTLs on chromosomes 3 and 10 showed significant additive gene effects, while the other three QTLs on chromosomes 1, 5 and 6 displayed dominant, over-dominant and partial dominant effects, respectively. Two major QTLs on chromosomes 3 R-scm1 and 10 R-scm3, explaining 7.2% to 26.9% and 15.3% to 15.8% of the phenotypic variance, were consistently detected at four stages. Based on this study, it was recommended that the MAS approach for SCMV resistance, combined with conventional selection method, could employ the QTLs on chromosomes 3, 5 and 10 |
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Article |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY ZEA MAYS SUGARCANE MOSAIC VIRUS QUANTITATIVE TRAIT LOCI DEVELOPMENTAL STAGES |
author |
Zhang, S.H. Li, X.H. Zhenhua Wang George, M.L.C. Jeffers, D.P. Wang, F.G. Liu, X.D. Li, M.S. Yuan Lixing |
author_facet |
Zhang, S.H. Li, X.H. Zhenhua Wang George, M.L.C. Jeffers, D.P. Wang, F.G. Liu, X.D. Li, M.S. Yuan Lixing |
author_sort |
Zhang, S.H. |
title |
QTL mapping for resistance to SCMV in chinese maize germplasm |
title_short |
QTL mapping for resistance to SCMV in chinese maize germplasm |
title_full |
QTL mapping for resistance to SCMV in chinese maize germplasm |
title_fullStr |
QTL mapping for resistance to SCMV in chinese maize germplasm |
title_full_unstemmed |
QTL mapping for resistance to SCMV in chinese maize germplasm |
title_sort |
qtl mapping for resistance to scmv in chinese maize germplasm |
publisher |
Consiglio per la Ricerca e la sperimentazione in Agricoltura, Unità di Ricerca per la Maiscoltura |
publishDate |
2003 |
url |
http://hdl.handle.net/10883/2985 |
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