Economic Botany

, Volume 40, Issue 4, pp 469–478 | Cite as

Phaseolin variability among wild and cultivated common beans (Phaseolus vulgaris) from Colombia

  • P. Gepts
  • F. A. Bliss
Article

Abstract

Phaseolin seed protein variability in a group of 8 wild and 77 cultivated common bean (Phaseolus vulgaris) accessions was determined using 1-dimensional SDS/ PAGE and 2-dimensional IEF-SDS/PAGE. Wild common bean accessions exhibited the 'CH' and 'B' patterns, previously undescribed among either wild or cultivated common beans. The cultivated genotypes showed (in decreasing frequency) the previously described 'S,' T,' and 'C phaseolin patterns as well as the new 'B' pattern similar to the pattern identified in a Colombian wild common bean accession. In the northeastern part of the Colombian bean-growing region, the cultivars exhibited almost exclusively an 'S' phaseolin type, while in the south-western part, the 'T' and 'C phaseolin cultivars were more frequent. Seed size analysis indicated that 'T' and 'C' phaseolin cultivars had larger seeds than 'S' and 'B' phaseolin cultivars. Our results suggest that Colombia is a meeting place for Andean and Middle American common bean germplasms, as well as a domestication center for the common bean.

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Copyright information

© The New York Botanical Garden 1986

Authors and Affiliations

  • P. Gepts
    • 1
  • F. A. Bliss
    • 2
  1. 1.Department of HorticultureUniversity of WisconsinMadison
  2. 2.Department of HorticultureUniversity of WisconsinMadison
  3. 3.Department of Botany and Plant SciencesUniversity of CaliforniaRiverside

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