Introgressing Subgenome Components from Brassica rapa and B. carinata to B. juncea for Broadening Its Genetic Base and Exploring Intersubgenomic Heterosis.

ABSTRACT: Brassica juncea (A^jA^jB^jB^j), is an allotetraploid that arose from two diploid species, B. rapa (A^rA^r) and B. nigra (BⁿBⁿ). It is an old oilseed crop with unique favorable traits, but the genetic improvement on this species is limited. We developed an approach to broaden its genetic base within several generations by intensive selection. The A^r subgenome from the Asian oil crop B. rapa (A^rA^r) and the B^c subgenome from the African oil crop B. carinata (B^cB^cC^cC^c) were combined in a synthesized allohexaploid (A^rA^rB^cB^cC^cC^c)

SUBMITTER: Wei Z 

PROVIDER: S-EPMC5112257 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature