Comparison of near-isogenic lines for anthracnoseAre aregenes in common bean,Phaseolus vulgarisL.

摘要

This study was undertaken to determine whether the Are gene controlling anthracnose resistance had an adverse effect on maturity and yield because backcross-derived cultivars/lines had numerically lower yield and later maturity than the respective recurrent parent. Three pairs of common bean lines near-isogenic for theAregene were developed fromAre areF2plants of the sixth backcross of Seafarer, Fleetwood, and Ex Rico 23. The near-isogenic lines were tested along with the recurrent cultivars and backcross-derived cultivars/lines. The results showed no evidence of any adverse effect of theAregene on the agronomic characteristics in 11 trails at 5 locations in 3 years.