Table 2 Summary of nucleotide substitution rates in the MHC of Chinook salmon (Oncorhynchus tshawytscha)

From: MHC genetic structure and divergence across populations of Chinook salmon (Oncorhynchus tshawytscha)

 

PBR

Non-PBR

 

Ds

Dn

Z

P

Ds

Dn

Z

P

MHC class I

0.058±0.035

0.112±0.036

1.035

0.151

0.015±0.008

0.025±0.009

1.073

0.143

MHC class II

0.002±0.002

0.094±0.024

3.833

<0.001

0.027±0.016

0.043±0.013

0.905

0.184

  1. Abbreviation: MHC, major histocompatibility complex.
  2. Rates of synonymous (Ds) and nonsynonymous (Dn) substitutions (with a Jukes–Cantor correction) across codons of the putative peptide-binding region (PBR) and non-PBR in the Chinook salmon MHC class I-A1 and class II-B1 are indicated. Results of the Z-test for selection across codons of the PBR and non-PBR are also indicated. All error terms are standard errors.