Genetic Diversity of Soybean Cultivars from China, Japan, North America, and North American Ancestral Lines Determined by Amplified Fragment Length Polymorphism
George N. Udea,
William J. Kenworthy*,a,
Jose M. Costaa,
Perry B. Creganb and
Jennie Alvernazc
a Dep. of Natural Resource Sciences and Landscape Architecture, Univ. of Maryland, College Park, MD 20742
b USDA-ARS, Soybean Genomics and Improvement Lab., Beltsville, MD 20705
c Dep. of Crop and Soil Sciences, Univ. of Georgia, Athens, GA 30602


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Fig. 1. Dendogram of 190 soybean lines produced by UPGMA clustering method based on the genetic similarity matrix derived from 332 AFLP markers. The letter and the numbers after the plus sign (+) in the cultivar names are codes from Table 1. A- = North American soybean ancestor; U- = North American soybean cultivar; Us- = Southern USA cultivar; C- = Chinese cultivar; J- = Japanese cultivar.
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Fig. 2. Principal coordinate graph of the 190 soybean lines composed of the first and second principal coordinates derived from the analysis of 332 AFLP markers. Soybean lines in the scatter are identified by codes from Table 1. A- = NASA; U- = North American soybean cultivar (NASC); Us- = Southern USA cultivar; C- = Chinese cultivar; and J- = Japanese cultivar.
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Copyright © 2003 by the Crop Science Society of America.