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| 3. |  | SOUZA, D. R.; OLIVEIRA, A. S. Avaliação de custos das operações de exploração florestal de terra firme, Projeto Santa Rita - Ghetal - Itacoatiara/AM. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
04/10/2011 |
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Data da última atualização: |
04/10/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
LEROY, T.; DE BELLIS, F.; LEGNATE, H.; KANANURA, E.; GONZALES, G.; PEREIRA, L. F. P.; ANDRADE, A. C.; CHARMETANT, P.; MONTAGNON, C.; CUBRY, P.; MARRACCINI, P.; POT, D.; KOCHKO, A. de. |
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Afiliação: |
UMR 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. |
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Título: |
Improving the quality of African robustas: QTLs for yield- and quality-related traits in Coffea canephora. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Tree Genetics & Genomes, v. 7, n. 4, p. 781-798, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Coffea 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. MenosCoffea 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. Th... Mostrar Tudo |
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Palavras-Chave: |
Beverage quality; Biochemical traits; Coffee; Cup tasting; QTL. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42829/1/Improving-the-quality-of-African.pdf
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Marc: |
LEADER 02662naa a2200325 a 4500
001 1902238
005 2011-10-04
008 2011 bl uuuu u00u1 u #d
100 1 $aLEROY, T.
245 $aImproving the quality of African robustas$bQTLs for yield- and quality-related traits in Coffea canephora.$h[electronic resource]
260 $c2011
520 $aCoffea 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.
653 $aBeverage quality
653 $aBiochemical traits
653 $aCoffee
653 $aCup tasting
653 $aQTL
700 1 $aDE BELLIS, F.
700 1 $aLEGNATE, H.
700 1 $aKANANURA, E.
700 1 $aGONZALES, G.
700 1 $aPEREIRA, L. F. P.
700 1 $aANDRADE, A. C.
700 1 $aCHARMETANT, P.
700 1 $aMONTAGNON, C.
700 1 $aCUBRY, P.
700 1 $aMARRACCINI, P.
700 1 $aPOT, D.
700 1 $aKOCHKO, A. de
773 $tTree Genetics & Genomes$gv. 7, n. 4, p. 781-798, 2011.
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Embrapa Café (CNPCa) |
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