Diversity of morphological traits and glucosinolate composition in backcross progenies of Brassica rapa L. × Eruca vesicaria (L.) Cav. hybrids

Breeding at both interspecific and intergeneric levels is an effective method for expanding genetic variation of cruciferous crops; however, few commercially accepted varieties have been released because difficulties in generating fertile progenies. We employed backcross strategy to introduce Eruca vesicaria-specific characteristics into Brassica rapa successfully obtained four BC1F1 lines that showed a wide range diversity morphological traits glucosinolate (GSL) composition. Thus, leaf shape, anthocyanin coloration, glucoraphanin content, red petal veins were found be inherited mainly from E. vesicaria, though most the GSL composition F1 plants. Since all post-fertilization barriers, backcrossing with B. was performed BC2F1 progenies obtained, which diverse as well higher regeneration potential. These results suggest widening can achieved through successive reciprocal × vesicaria hybrids rapa.