Genetic Diversity of Bulgarian Phaseolus vulgaris L. Based on Phaseolin Type and Seed-Coat Colour

1 Agricultural Academy, Department of Plant Breeding, Variety Maintenance and Introduction, Maritsa Vegetable Crops Research Institute, BG-4003 Plovdiv, Bulgaria
2 International Atomic Energy Agency, Vienna International Centre, A-1400 Vienna, Austria
3 University of Liege, Tropical Agroecology and Horticulture Laboratory, Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium


TOMLEKOVA, N., Sv. SOFKOVA-BOBCHEVA, F. SARSU and J.-P. BAUDOIN, 2016. Genetic diversity of Bulgarian Phaseolus vulgaris L. based on phaseolin type and seed-coat colour. Bulg. J. Agric. Sci., 22: 447–451

Knowledge of genetic diversity enhances the effi ciency of germplasm conservation and improvement. Previous studies, using phaseolin seed protein as a molecular marker, have revealed four groups (T, Ca, C and S) of Bulgarian common bean accessions (Phaseolus vulgaris L.). The present study examines seed-coat colour diversity of 292 P. vulgaris accessions and the relation between phaseolin type and seed-coat colour. A previous study focused on phaseolin type and the present study adds an analysis of seed-coat colours and patterns and their relationships. The results identify subgroups within the major Andean and Mesoamerican genetic groups. Seed-coat colour and pattern comparisons by accessions, complemented with biochemical data, increase the discriminating power of genetic diversity analyses.

Key words: Common bean, germplasm conservation, molecular marker, seed storage protein

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