Skip to main content

Table 3 Synonymous and non-synonymous substitutions in the 6 DQA alleles of the giant panda. Distances were calculated separately for ABS and non-ABS and the distribution of gene frequency was taken into account. Standard errors were computed using 1000 bootstrap replicates. N is the number of codons in each category and P is the probability that d N and d S are different.

From: Low major histocompatibility complex class II DQA diversity in the Giant Panda (Ailuropoda melanoleuca)

Population

Positions

N

d N

d S

d N /d S

P

Ya'an-Wolong

ABS

21

0.022 ± 0.013

0.000 ± 0.000

∞

0.047

 

Non-ABS

70

0.014 ± 0.007

0.011 ± 0.011

1.273

0.441

 

All

91

0.016 ± 0.006

0.010 ± 0.010

1.600

0.259

Chengdu

ABS

21

0.055 ± 0.030

0.000 ± 0.000

∞

0.033

 

Non-ABS

70

0.018 ± 0.008

0.009 ± 0.009

2.000

0.169

 

All

91

0.027 ± 0.010

0.007 ± 0.007

3.857

0.037

Louguantai

ABS

21

0.044 ± 0.021

0.000 ± 0.000

∞

0.022

 

Non-ABS

70

0.017 ± 0.007

0.011 ± 0.011

1.545

0.292

 

All

91

0.024 ± 0.008

0.009 ± 0.009

2.667

0.063

All

ABS

21

0.047 ± 0.023

0.000 ± 0.000

∞

0.020

 

Non-ABS

70

0.016 ± 0.007

0.010 ± 0.010

1.600

0.214

 

All

91

0.024 ± 0.008

0.008 ± 0.008

3.000

0.046