Can Phaseolin Patterns Help Resolve the Phaseolus-Vigna Complex
2006
Sharma, Preeti | Kaul, Sanjana | Dhar, Manoj K
Although common bean (Phaseolus vulgaris L.) is cultivated throughout India, the Himalayas hold largest diversity of bean germplasm. No studies on characterization of phaseolin types on this germplasm have been conducted earlier. In order to determine whether the common bean cultivars collected from various areas in the Northern Himalayas represent introductions from the Central American and Andean domestication centers or are local domesticates, we have analyzed the electrophoretic variation (SDS-PAGE) of phaseolin types in several bean accessions. A few species of Vigna were also included in this study to determine whether phaseolin (vignin in Vigna) patterns can be used to resolve the Phaseolus-Vigna complex. The present investigation on phaseolin (globulin) patterns of Phaseolus vulgaris and Vigna spp. clearly shows much variability in globulin patterns. Three new types of phaseolin patterns were recorded. An attempt to resolve phylogenetic problems in this complex was made using the phaseolin data.
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