Comparison of C. briggsae Chemoreceptor Genes with Their C. elegans Orthologs in thestrFamily
| C. briggsae gene number[ii] | C. elegans gene number | Encoded amino acid identity (%) | Exon DNA identity (%) | Ks ± s.e. | Ka ± s.e. | Introns |
| G47M22.a | F58G4.2 | 87 | 77 | 1.90 ± 0.38 | 0.09 ± 0.01 | 6 shared |
| G47M22.b | F58G4.7 | 87 | 78 | 2.22 ± 0.61 | 0.09 ± 0.01 | 5 shared, G47M22.b lost intron h |
| G47M22.c | F58G4.6 | 81 | 75 | 2.74 ± 1.19 | 0.12 ± 0.01 | 7 shared |
| G47M22.d | F58G4.5 | 81 | 74 | NC | 0.13 ± 0.01 | 6 shared |
| G47M22.e | C09H5.9 | 87 | 78 | 1.42 ± 0.21 | 0.09 ± 0.01 | 5 shared |
| G47M22.f and G47M22.g | C09H5.8* | 68 and 74 | 69 and 72 | 1.84 ± 0.34 | 0.18 ± 0.02 | 5 shared |
| G47M22.h | M01D1.1 | 72 | 69 | NC | 0.19 ± 0.02 | 6 shared, G47M22.h lost intron d |
| G47M22.i | no ortholog | |||||
| G47M22.j | C09H5.6 | 80 | 74 | NC | 0.12 ± 0.01 | 4 shared |
| G47M22.k | C09H5.5 | 85 | 73 | NC | 0.12 ± 0.02 | 2 shared |
| G45J08.a | C06B3.9 | 58 | 64 | 1.81 ± 0.36 | 0.33 ± 0.03 | 4 shared |
| G45J08.b* | C06B3.1* | 61 | 64 | 2.22 ± 0.75 | 0.30 ± 0.03 | 3 shared |
| G36C02.a* | C31E10.1* | 57 | 62 | NC | 0.34 ± 0.03 | 2 shared, G36C02.a lost introns g and h |
[i] The carboxy-terminal exon region was excluded from most comparisons because it is unalignable in the str family.
[ii] (*) Certain or likely pseudogenes.
[iii] (NC) KsKaCalc cannot estimate.