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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
02/12/2016 |
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Data da última atualização: |
08/02/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COSTA, E. A.; ANONI, C. O.; MANCINI, M. C.; SANTOS, F. R. C.; MARCONI, T. G.; GAZAFFI, R.; PASTINA, M. M.; PERECIN, D.; MOLINARI, M.; XAVIER, M. A.; PINTO, L. R.; SOUZA, A. P.; GARCIA, A. A. F. |
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Afiliação: |
UNICAMP; ESALQ; UNICAMP; Centro Avançado da Pesquisa Tecnológica do Agronegócio de Cana, IAC/Apta; ESALQ; Universidade Federal de São Carlos; MARIA MARTA PASTINA, CNPMS; UNESP; ESALQ; Centro Avançado da Pesquisa Tecnológica do Agronegócio de Cana, IAC/Apta; Centro Avançado da Pesquisa Tecnológica do Agronegócio de Cana, IAC/Apta; UNICAMP; ESALQ. |
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Título: |
QTL mapping including codominant SNP markers with ploidy level information in a sugarcane progeny. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Euphytica, Dordrecht, v. 211, n. 1, p. 1-16, 2016. |
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DOI: |
10.1007/s10681-016-1746-7 |
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Idioma: |
Inglês |
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Conteúdo: |
Quantitative trait locus (QTL) mapping contributes to sugarcane (Saccharum spp.) breeding programs by providing information about the genetic effects, positioning and number of QTLs. Combined with marker-assisted selection, it can help breeders reduce the time required to develop new sugarcane varieties. We performed a QTL mapping study for important agronomic traits in sugarcane using the composite interval mapping method for outcrossed species. A new approach allowing the 1:2:1 segregation ratio and different ploidy levels for SNP markers was used to construct an integrated genetic linkage map that also includes AFLP and SSR markers. Were used 688 molecular markers with 1:1, 3:1 and 1:2:1 segregation ratios. A total of 187 individuals from a biparental cross (IACSP95-3018 and IACSP93-3046) were assayed across multiple harvests from two locations. The evaluated yield components included stalk diameter (SD), stalk weight (SW), stalk height (SH), fiber percentage (Fiber), sucrose content (Pol) and soluble solid content (Brix). The genetic linkage map covered 4512.6 cM and had 118 linkage groups corresponding to 16 putative homology groups. A total of 25 QTL were detected for SD (six QTL), SW (five QTL), SH (four QTL), Fiber (five QTL), Pol (two QTL) and Brix (three QTL). The percentage of phenotypic variation explained by each QTL ranged from 0.069 to 3.87 %, with a low individual effect because of the high ploidy level. The mapping model provided estimates of the segregation ratio of each mapped QTL (1:2:1, 3:1 or 1:1). Our results provide information about the genetic organization of the sugarcane genome and constitute the first step toward a better dissection of complex traits. MenosQuantitative trait locus (QTL) mapping contributes to sugarcane (Saccharum spp.) breeding programs by providing information about the genetic effects, positioning and number of QTLs. Combined with marker-assisted selection, it can help breeders reduce the time required to develop new sugarcane varieties. We performed a QTL mapping study for important agronomic traits in sugarcane using the composite interval mapping method for outcrossed species. A new approach allowing the 1:2:1 segregation ratio and different ploidy levels for SNP markers was used to construct an integrated genetic linkage map that also includes AFLP and SSR markers. Were used 688 molecular markers with 1:1, 3:1 and 1:2:1 segregation ratios. A total of 187 individuals from a biparental cross (IACSP95-3018 and IACSP93-3046) were assayed across multiple harvests from two locations. The evaluated yield components included stalk diameter (SD), stalk weight (SW), stalk height (SH), fiber percentage (Fiber), sucrose content (Pol) and soluble solid content (Brix). The genetic linkage map covered 4512.6 cM and had 118 linkage groups corresponding to 16 putative homology groups. A total of 25 QTL were detected for SD (six QTL), SW (five QTL), SH (four QTL), Fiber (five QTL), Pol (two QTL) and Brix (three QTL). The percentage of phenotypic variation explained by each QTL ranged from 0.069 to 3.87 %, with a low individual effect because of the high ploidy level. The mapping model provided estimates of the segregation... Mostrar Tudo |
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Palavras-Chave: |
Melhroramento. |
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Thesagro: |
Cana de açúcar; Marcador genético. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02608naa a2200313 a 4500
001 2057827
005 2017-02-08
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1007/s10681-016-1746-7$2DOI
100 1 $aCOSTA, E. A.
245 $aQTL mapping including codominant SNP markers with ploidy level information in a sugarcane progeny.$h[electronic resource]
260 $c2016
520 $aQuantitative trait locus (QTL) mapping contributes to sugarcane (Saccharum spp.) breeding programs by providing information about the genetic effects, positioning and number of QTLs. Combined with marker-assisted selection, it can help breeders reduce the time required to develop new sugarcane varieties. We performed a QTL mapping study for important agronomic traits in sugarcane using the composite interval mapping method for outcrossed species. A new approach allowing the 1:2:1 segregation ratio and different ploidy levels for SNP markers was used to construct an integrated genetic linkage map that also includes AFLP and SSR markers. Were used 688 molecular markers with 1:1, 3:1 and 1:2:1 segregation ratios. A total of 187 individuals from a biparental cross (IACSP95-3018 and IACSP93-3046) were assayed across multiple harvests from two locations. The evaluated yield components included stalk diameter (SD), stalk weight (SW), stalk height (SH), fiber percentage (Fiber), sucrose content (Pol) and soluble solid content (Brix). The genetic linkage map covered 4512.6 cM and had 118 linkage groups corresponding to 16 putative homology groups. A total of 25 QTL were detected for SD (six QTL), SW (five QTL), SH (four QTL), Fiber (five QTL), Pol (two QTL) and Brix (three QTL). The percentage of phenotypic variation explained by each QTL ranged from 0.069 to 3.87 %, with a low individual effect because of the high ploidy level. The mapping model provided estimates of the segregation ratio of each mapped QTL (1:2:1, 3:1 or 1:1). Our results provide information about the genetic organization of the sugarcane genome and constitute the first step toward a better dissection of complex traits.
650 $aCana de açúcar
650 $aMarcador genético
653 $aMelhroramento
700 1 $aANONI, C. O.
700 1 $aMANCINI, M. C.
700 1 $aSANTOS, F. R. C.
700 1 $aMARCONI, T. G.
700 1 $aGAZAFFI, R.
700 1 $aPASTINA, M. M.
700 1 $aPERECIN, D.
700 1 $aMOLINARI, M.
700 1 $aXAVIER, M. A.
700 1 $aPINTO, L. R.
700 1 $aSOUZA, A. P.
700 1 $aGARCIA, A. A. F.
773 $tEuphytica, Dordrecht$gv. 211, n. 1, p. 1-16, 2016.
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