Characterization of QTL and Environmental Interactions Controlling Flowering Time in Andean Common Bean (Phaseolus vulgaris L.)

Genetic variation for response of flowering time to photoperiod plays an important role in adaptation environments with different photoperiods, and as consequence is contributor plant productivity yield. To elucidate the genetic control [days (DTF); growing degree days (GDD)] common bean, a facultative short-day plant, quantitative trait loci (QTL) analysis was performed recombinant inbred mapping population derived from cultivated accession sensitive landrace, grown long-day (LD) (SD) by using multiple-environment QTL model approach. A total 37 across 17 chromosome regions 36 QTL-by-QTL interactions were identified six traits associated photoperiod. The DTF accounted 28 11% on average phenotypic LD SD environments, respectively. Of these, genomic region 4 harboring major both traits, controlling more than 60% variance, whereas 9 explained up 32% SD. Different epistatic found presence significant × environment (QE) epistasis implies that may rely genes pathways under inductive non-inductive conditions. Here, we report identification novel locus sensitivity 4, which might interact other bean response. Our results have also demonstrated importance these point likely complexity pathways. This knowledge will help identify develop opportunities breeding this legume crop.