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Genetic Diversity Patterns in Japanese Soybean Cultivars Based on Coefficient of Parentage

^a Dep. of Crop Science, North Carolina State Univ., Raleigh, NC 27695-7631
^b USDA-ARS and Dep. of Crop Science, North Carolina State Univ., Raleigh, NC 27695-7631
^c National Institute of Agrobiological Resources, Tsukuba, Japan

View larger version (28K): [in a new window]   Fig. 1. Plot of coefficient of parentage (CP) relationship for 86 Japanese soybean cultivars released from 1950 to 1988. Coordinates for a cultivar were obtained from multidimensional scaling analysis employing two dimensions based on CP relations. The complement of the linear distances (1 - Distance) between any two cultivars estimates the coefficient of parentage between them. Distances 1 indicate no pedigree relationship between cultivars. For cultivar codes, see Table 1.

View larger version (34K): [in a new window]   Fig. 2. Plot of coefficient of parentage (CP) relationship among six clusters representing 54 Japanese soybean cultivars released from 1950 to 1988. Coordinates for a cultivar were obtained from multidimensional scaling analysis employing two dimensions based on CP relations. The complement of the linear distances (1 - Distance) between any two cultivars estimates the coefficient of parentage between them. Distances 1 indicate no relationship. For cultivar codes, see Table 1.