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. 2016 Nov 17;7:1677. doi: 10.3389/fpls.2016.01677

Figure 2.

Figure 2

Strategy used to generate a population of new-type B. juncea. The Brassica allohexaploid in which the Ar and Bc subgenomes from B. carinata (BcBcCcCc) and B. rapa (ArAr) (Tian et al., 2010) were combined was used as the donor of exotic subgenomes. The first step in the current study involved interspecific crosses between various hexaploid and traditional B. juncea to transfer the Ar and Bc subgenomes to B. juncea. Successive phenotypic and cytological selection was then conducted up to the F6 generation, whereas genomic surveying was mainly conducted at the F3 generation.