Table 2

Tests on difference of d_S, d_N and d_N/d_S among the 7 GA genes^a

Gene

d_S

d_N

d_N/d_S

Mean ± SE^b

WSRT^c

Mean ± SE^b

WSRT^c

Mean ± SE

ω^d

CPS1

0.292 ± 0.016

A

0.040 ± 0.002

B

0.139 ± 0.007

C (0.144)

KS1

0.214 ± 0.023

A

0.086 ± 0.006

C

0.420 ± 0.030

D (0.386)

KO2

0.250 ± 0.008

A

0.050 ± 0.001

B

0.201 ± 0.009

C (0.177)

KAO

0.600 ± 0.023

B

0.037 ± 0.002

B

0.062 ± 0.003

B (0.074)

GA20ox2

0.556 ± 0.029

B

0.015 ± 0.001

A

0.027 ± 0.002

A (0.022)

GA3ox2

0.699 ± 0.063

B

0.044 ± 0.004

B

0.066 ± 0.007

B (0.073)

GA2ox4

0.747 ± 0.092

B

0.087 ± 0.010

C

0.119 ± 0.006

C (0.129)

^a Capital letters (A to D) indicate the homogenous groups.

^b Calculated based on 9 specie pairs.

^c Wilcoxon signed rank test using 10 independent branches of the pruned tree consisting of 6 species

^d ω, calculated as d_N/d_S ratios using PAML model M0.

Yang et al. BMC Evolutionary Biology 2009 9:206   doi:10.1186/1471-2148-9-206