Table 1. Difference in gene content of R blocks in the A and B genomes of B. juncea, as compared with the gene content reported in B. rapa (A) and A. thaliana.
| A. thaliana | B. rapa MF2-R-A2 | B. juncea MF2-R-A2 | B. juncea MF2-R-B2 | B. rapa MF1-R-A3 | B. juncea MF1-R-A3 | B. juncea MF1-R-B3 | B. rapa LF-R-A10 | B. juncea LF-R-A10 | B. juncea LF-R-B8 | |
| Number of A. thaliana genes of R block | 120 | 56 ▴ | 61 | 60 | 51 ▴ | 53 | 51 | 69 ▴ | 75 | 78 |
| Number of Brassica lineage specific genes of R block | - | 5 | 3 | 2 | 10 | 3 | - | 9 | 9 | 6 |
| * Number of CDS showing similarity with proteins coded by the B. rapa genes from non-collinear blocks | - | - | 2 | 13 | - | 3 | 2 | - | 9 | 14 |
| * Number of CDS showing similarity with proteins from genera other than B. rapa | - | - | 3 | 8 | - | 1 | - | - | - | 4 |
| * Number of CDS showing similarity with transposon related proteins | - | - | - | 10 | - | 1 | - | - | 1 | 11 |
MF2 - Most fractionated subgenome; MF1 - Medium fractionated subgenome; LF - Least fractionated subgenome.
A - A genome; B - B genome; R - R block; LG - linkage group.
CDS - coding sequence.
*- The rows marked with an asterix indicate that the recorded CDS are unique to that LG.
▴
-Difference in gene numbers between B. rapa and A genome of B. juncea is observed because these genes are present in scaffold sequences of Brassica database (BRAD) but have not been recorded.