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Título: | Patterns of genetic diversity in landraces of common bean (Phaseolus vulgaris L.) from Galicia |
Autor: | Escribano, María Raquel; Santalla Ferradás, Marta CSIC ORCID ; Casquero Luelmo, Pedro Antonio; Ron Pedreira, Antonio Miguel de | Palabras clave: | Phaseolus vulgaris Germplasm Multivariate analysis Phaseolin Races |
Fecha de publicación: | mar-1998 | Editor: | Wiley-VCH | Citación: | Plant Breeding 117 (1): 49–56 (1998) | Resumen: | Knowledge of patterns of genetic diversity among existing cultivars helps to broaden the genetic base of new cultivars and maximizes the use of available germplasm resources. This study examined the organization of diversity for morphological traits in 66 landraces of cultivated common bean (Phaseolus vulgaris) from Galicia and its relationship with phaseolin seed protein diversity. Data on growth habit, seed and pod traits obtained from field evaluations at two locations during the 1989—91 cropping seasons were subjected to multivariate statistical analysis. Cluster analysis based on 14 quantitative variables and five qualitative variables identified 11 groups. The landraces were also characterized by phaseolin electrophoresis. The results allowed separation of these landraces into Middle and Andean American groups, which could be further divided into at least eight groups within the Andean American cultivars and three within the Mesoamerican cultivars. These groups in turn corresponded to the previously described races Nueva Granada and Peru of South American origin, and races Durango, Jalisco and Mesoamerica from the Middle American domestication centre. These results confirm the existence of two major groups of germplasm in the cultivated common bean landraces from Galicia, Mesoamerican vs. Andean American. | Versión del editor: | http://dx.doi.org/10.1111/j.1439-0523.1998.tb01447.x | URI: | http://hdl.handle.net/10261/103345 | DOI: | 10.1111/j.1439-0523.1998.tb01447.x | ISSN: | 0179-9541 | E-ISSN: | 1439-0523 |
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