Table 2. Genomic distribution of comparative loci that are incongruent with patterns of colinearity between sorghum and rice
Sorghum linkage gp. Rice chromosome Rice homoeolog No. of incongruent loci on rice homoeolog No. of incongruent loci on other rice chromosomes Inferred sorghum homoeolog* No. of incongruent loci on sorghum homoeolog No. of incongruent loci on other sorghum groups
A 1 5 10 46 G 24 99
B 7 3 18 47 C 22 83
B 9 8 5 19 J 7 33
C 3 7 12 70 B 18 135
C 10 3 13 43 ? - -
D 4 2 9 40 F 11 75
E 12 11 16 40 H 25 70
F 2 6 10 27 I 19 57
F 2 4 2 12 D 6 34
G 5 1 17 34 A 24 73
H 11 12 8 44 E 25 105
I 6 2 15 42 F 21 97
J 8 9 5 33 B 11 66
Total 140 497 213 927
  • * Based on the hypothesis that ancestors of rice and sorghum shared a common genome-wide duplication, thus using rice duplication patterns (Fig. 1) together with rice-sorghum synteny (Fig. 2) to infer the sorghum homoeologs.