Article
Two plastid DNA lineages--Rapa/Oleracea and Nigra--within the tribe Brassiceae can be best explained by reciprocal crosses at hexaploidy: evidence from divergence times of the plastid genomes and R-block genes of the A and B genomes of Brassica juncea.
PloS one - 1 Jan 2014
Sharma Sarita, Padmaja K Lakshmi, Gupta Vibha, Paritosh Kumar, Pradhan Akshay K, Pental Deepak
Abstract excerpt
Brassica species (tribe Brassiceae) belonging to U's triangle--B. rapa (AA), B. nigra (BB), B. oleracea (CC), B. juncea (AABB), B. napus (AACC) and B. carinata (BBCC)--originated via two polyploidization rounds: a U event producing the three allopolyploids, and a more ancient b genome-triplicatio...
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