أعرض تسجيلة المادة بشكل مبسط

dc.creator Santalla Ferradás, Marta
dc.creator Lema Márquez, Margarita
dc.creator Pérez Barbeito, Marlene
dc.creator Fuente Martínez, María de la
dc.creator Singh, Shree P.
dc.creator Ron Pedreira, Antonio Miguel de
dc.date 2008-04-29T17:07:17Z
dc.date 2008-04-29T17:07:17Z
dc.date 2006-03
dc.date.accessioned 2017-01-31T01:07:51Z
dc.date.available 2017-01-31T01:07:51Z
dc.identifier Bean Improvement Cooperative Annual Report 49, 107-108 (2006)
dc.identifier http://hdl.handle.net/10261/3921
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3921
dc.description Progress in common bean breeding requires the exploitation of genetic variation that is present among races or through introgression across gene pools. Iberian Peninsula is considered as a secondary center of genetic diversity (Santalla et al., 2002). Introgression from the Middle American to the Andean gene pool appears to be relatively common in Andean zones, while Middle American accessions from the Iberian Peninsula exhibit evidence of introgression from Andean beans (Chacón et al., 2005; Paredes and Gepts, 1995). This introgression was assumed to result from spontaneous outcrossing in farmers' fields, based on segregation found previously in farmers' varietal mixtures. Studies employing allozymes and DNA-based markers have revealed dozens of instances of natural introgression in plants, and morphological intermediary and molecular confirmation of introgression go hand by hand. The presence of crop-specific alleles in intermediate populations can help to provide strong evidence for a history of hybridization. The objective of the investigation presented here was to quantify the degree of spontaneous introgression on the phenotype of Mesoamerican landraces.
dc.description Research was supported by Plan Nacional I+D+I (AGF93-0756-C02) and INIA (RTA03-048-C2-2) projects from the Spanish Government. The authors thank the Xunta de Galicia for funding.
dc.description Peer reviewed
dc.format 190852 bytes
dc.format application/pdf
dc.language eng
dc.publisher Bean Improvement Cooperative
dc.rights openAccess
dc.subject Phaseolus vulgaris
dc.subject Beans
dc.subject Plant breeding
dc.subject Genetic improvement
dc.subject Introgression
dc.subject Genotype
dc.subject Genetic variation
dc.subject Landraces
dc.subject Cultivars
dc.subject Central America
dc.subject South America
dc.title Introgressed genotypes to improve common bean
dc.type Artículo


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أعرض تسجيلة المادة بشكل مبسط