Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/902238
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dc.contributor.authorLEROY, T.pt_BR
dc.contributor.authorDE BELLIS, F.pt_BR
dc.contributor.authorLEGNATE, H.pt_BR
dc.contributor.authorKANANURA, E.pt_BR
dc.contributor.authorGONZALES, G.pt_BR
dc.contributor.authorPEREIRA, L. F. P.pt_BR
dc.contributor.authorANDRADE, A. C.pt_BR
dc.contributor.authorCHARMETANT, P.pt_BR
dc.contributor.authorMONTAGNON, C.pt_BR
dc.contributor.authorCUBRY, P.pt_BR
dc.contributor.authorMARRACCINI, P.pt_BR
dc.contributor.authorPOT, D.pt_BR
dc.contributor.authorKOCHKO, A. dept_BR
dc.date.accessioned2011-10-04T11:11:11Zpt_BR
dc.date.accessioned2011-10-04T11:11:11Zpt_BR
dc.date.available2011-10-04T11:11:11Zpt_BR
dc.date.available2011-10-04T11:11:11Zpt_BR
dc.date.created2011-10-04pt_BR
dc.date.issued2011pt_BR
dc.identifier.citationTree Genetics & Genomes, v. 7, n. 4, p. 781-798, 2011.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/902238pt_BR
dc.descriptionCoffea canephora breeding requires combining sustainable productivity with improved technological and cup quality characteristics. Beverage quality is a complex and subjective trait, and breeding for this trait is time consuming and depends on knowledge of the genetics of its components. A highly variable C. canephora progeny resulting from an intraspecific cross was assessed for 63 traits over 5 years. To identify quantitative trait loci (QTLs) controlling agronomic, technological, and quality-related traits, a genetic map comprising 236 molecular markers was constructed, and composite interval mapping was performed. Beverage quality was evaluated in relation to biochemical and cup tasting traits. QTLs were identified for almost half of the traits evaluated, with effects ranging from 6% to 80% of phenotypic variation. Most of them present a consistent detection over years. The strongest QTLs explained a high percentage of the variation for yield in 2006 (34% to 57%), bean size (25% to 35%), content of chlorogenic acids (22% to 35%), sucrose and trigonelline content (29% to 81%), and acidity and bitterness of coffee beverages (30% to 55%). Regions of the C. canephora genome influencing beverage quality were identified. Five QTL zones were co-localized with candidate genes related to the biosynthesis of the analyzed traits: two genes coding for caffeine biosynthesis, one gene implicated in the biosynthesis of chlorogenic acids, and two genes implicated in sugar metabolism. This is one of the first studies on the identification of QTLs combining agronomic and quality traits in coffee. The high variability of quality traits within C. canephora and the presence of consistent QTLs offer breeders a promising tool to improve coffee cup quality.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectBeverage qualitypt_BR
dc.subjectBiochemical traitspt_BR
dc.subjectCoffeept_BR
dc.subjectCup tastingpt_BR
dc.subjectQTLpt_BR
dc.titleImproving the quality of African robustas: QTLs for yield- and quality-related traits in Coffea canephora.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2011-10-04T11:11:11Zpt_BR
riaa.ainfo.id902238pt_BR
riaa.ainfo.lastupdate2011-10-04pt_BR
dc.contributor.institutionUMR AGAP, CIRAD; UMR AGAP, CIRAD; CNRA; National Agricultural Research Organisation - NARO; University of Seville; LUIZ FILIPE PROTASIO PEREIRA, SAPC; ALAN CARVALHO ANDRADE, CENARGEN; UMR AGAP, CIRAD; UMR RPB, CIRAD; UMR AGAP, CIRAD; UMR AGAP, CIRAD; AMR AGAP, CIRAD; UMR DIADE, IRD.pt_BR
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