Genome-wide comparative analysis of the Brassica rapa gene space reveals genome shrinkage and differential loss of duplicated genes after whole genome triplication

Abstract

This work demonstrates the potential of using comparative tiling sequencing for genome analysis of crop species. Based on a comparative analysis of the B. rapa sequences and the Arabidopsis genome, it appears that polyploidy and chromosomal diploidization are ongoing processes that collectively stabilize the B. rapa genome and facilitate its evolution.