Table 2

SNPs genomic distribution among chromosomes
Chromosomes SNP distribution
No. Length (Mbp) %a Total Polymorphic Monomorphic PM ratio
(T) (P) (M)
No. %b No. %c No. %c
1 300.2 14.7% 6,812 15.9% 2,272 33.4% 4,540 66.6%
2 234.8 11.5% 4,910 11.5% 1,625 33.1% 3,285 66.9%
3 230.6 11.3% 4,697 11.0% 1,730 36.8% 2,967 63.2%
4 247.1 12.1% 4,770 11.2% 1,752 36.7% 3,018 63.3%
5 216.9 10.6% 4,640 10.8% 1,444 31.1% 3,196 68.9%
6 169.3 8.3% 3,468 8.1% 1,238 35.7% 2,230 64.3%
7 171.0 8.4% 3,539 8.3% 1,361 38.5% 2,178 61.5%
8 174.5 8.5% 3,712 8.7% 1,212 32.7% 2,500 67.3%
9 152.4 7.4% 3,151 7.4% 1,192 37.8% 1,959 62.2%
10 149.7 7.3% 3,072 7.2% 1,111 36.2% 1,961 63.8%
Total 2,046 100% 42,771 100% 14,937 34.9%d 27,834 65.1%d

aChromosome length over total genome length; bnumber of SNPs per chromosome over total number of SNPs; cnumber of polymorphic (P) and monomorphic (M) SNPs over the total number of SNPs mapped on the respective chromosome; dnumber of polymorphic (P) and monomorphic (M) SNPs over total number SNPs. Up/down arrows indicate the sign of significant (P < 0.05) deviations from the expected SNP distribution among chromosomes for the corresponding tested null hypotheses, namely: uniform distribution of total SNPs (T); uniform distribution of polymorphic SNPs (P); uniform distribution of monomorphic SNPs (M); independent distribution of polymorphic vs. monomorphic SNPs from their mapping chromosome (PM ratio).

Pea et al.

Pea et al. BMC Genomics 2013 14:61   doi:10.1186/1471-2164-14-61

Open Data