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ARS Home » Pacific West Area » Pullman, Washington » Grain Legume Genetics Physiology Research » Research » Publications at this Location » Publication #305050
Title: Association of slow darkening gene ‘sd’ with grain quality traits in carioca bean and new candidate marker

Author
item ALVARES, RENATA - Federal University Of Goias
item MELO, PATRICIA - Federal University Of Goias
item PEREIRA, HELTON - Embrapa
item MELO, LEONARDO - Embrapa
item BELLO, MARCO - Former ARS Employee
item BETT, KIRSTIN - University Of Saskatchewan
item STONEHOUSE, ROB - University Of Saskatchewan
item Miklas, Phillip - Phil

Submitted to: Bean Improvement Cooperative Annual Report
Publication Type: Proceedings
Publication Acceptance Date: 2/11/2014
Publication Date: 3/1/2014
Citation: Alvares, R.C., Melo, P.G., Pereira, H.S., Melo, L.C., Bello, M., Bett, K., Stonehouse, R., Miklas, P.N. 2014. Association of slow darkening gene ‘sd’ with grain quality traits in carioca bean and new candidate marker. Bean Improvement Cooperative Annual Report. 57: 131-132.

Interpretive Summary: The carioca dry bean market class is preferred by most consumers and accounts for 70% of the Brazilian consumer market (Del Peloso & Melo, 2005). Recently, characteristics related to the commercial grain quality such as grain color, cooking time and darkening period have become more important due to an increasingly demanding consumer market (Carbonell et al., 2010). The seed darkens during storage becoming less acceptable to consumers and depreciation of the economic value. Cultivars with delayed grain darkening associated with reduced cooking time after storage will be advantageous for the farmer and seed dealers. Grain storage for longer periods allows flexibility, i.e., the producer can await better prices on the market. The cultivar BRSMG Madrepérola is a slow darkening carioca cultivar with recessive gene inheritance for the trait (Silva et al., 2008).

Technical Abstract: The carioca dry bean market class is preferred by most consumers and accounts for 70% of the Brazilian consumer market (Del Peloso & Melo, 2005). Recently, characteristics related to the commercial grain quality such as grain color, cooking time and darkening period have become more important due to an increasingly demanding consumer market (Carbonell et al., 2010). The seed darkens during storage becoming less acceptable to consumers and depreciation of the economic value. Cultivars with delayed grain darkening associated with reduced cooking time after storage will be advantageous for the farmer and seed dealers. Grain storage for longer periods allows flexibility, i.e., the producer can await better prices on the market. The cultivar BRSMG Madrepérola is a slow darkening carioca cultivar with recessive gene inheritance for the trait (Silva et al., 2008).