Table 3. dN/dS ratio in three Caenorhabditis species pairs.
| nurf-1–1 or nurf-1.b | nurf-1–2 or nurf-1.d | ||||||
|---|---|---|---|---|---|---|---|
| Sp. pair | Duplicationa | Dup. Reg.b | Otherc | Ratiod | Dup. Reg.b | Otherc | Ratiod |
|
C. afra/
C. sulstoni |
N | 0.136e | 0.121 | 1.1 | 0.116e | 0.072 | 1.6 |
|
C. nigoni/
C. briggsae |
Y | 0.249 | 0.085 | 2.9 | 0.111 | 0.019 | 5.8 |
|
C. remanei/
C. latens |
Y | 0.295 | 0.121 | 2.4 | 0.177 | 0.048 | 3.7 |
a Duplication indicates whether the species pair contain the duplicated exons that create two nurf-1 genes.
b Dup. Reg. indicates dN/dS was calculated using the region of the alignment that contains the duplication.
c Other indicates dN/dS was calculated using the region of the alignment that does not contain the duplication.
d Ratio was calculated by dividing the dN/dS value of the Dup. Reg. by the Other.
e The dN/dS values for the nurf-1.b and nurf-1.d in the duplicated region were different due to the b transcript encoding two additional amino acids in the 14th exon (before the M initiation codon in the d isoform) and the amino acids encoded by the 16th alternatively spliced exon.