Linkage of dominant hypersensitive resistance to bean common mosaic virus to seed color in Phaseolus vulgaris L. |
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| Authors: | Steven R Temple Francisco J Morales |
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| Institution: | (1) Centro Internatiocal de Agricultura Tropical (CIAT), Cali, Colombia;(2) Present address: CIAT, A.A. 6713 Cali, Colombia |
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| Abstract: | Summary Evaluation of Phaseolus vulgaris germplasm bank materials and progenies from a large number of crosses using red- or yellow-colored, BCMV-susceptible bean lines, crossed to purple- or grey/brown-colored, hypersensitive-resistant lines, suggested strong trait association between seed color and BCMV resistance. The cross of red-mottled I+I+ (susceptible) BAT 1255R to isogenic purple-mottled II (resistant) BAT 1255M was made to study the segregation of the two characters and to recover red-mottled resistant progenies. No recombinant genotypes were observed among 353 F3 families inoculated with BCMV-NL3, suggesting that linkage of purple-mottled seed color and dominant BCMV resistance is very close.Contribution of the Centro Internacional de Agricultural Tropical. |
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| Keywords: | Phaseolus vulgaris common bean bean common mosaic virus seed color linkage genetics |
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