Genetic variability and evolutionary diversification of membrane ABC transporters in plants

BMC Plant Biology

Table 1 Estimation of non synonymous and synonymous substitutions mean dissimilarity for each sub-family (δ = d _N -d _S and ω = d _N /d _S )

ABC families	n. ABC sequences	π	Nei-Gojobori method		SLAC method
ABC families	n. ABC sequences	π	δ	p-Value	ω
A	49	0.607	−13.61	1e-10	0.656
B	131	0.590	−3.56	5e-3	0.911
C	95	0.585	−4.54	1e-5	0.768
D	10	0.432	−7.47	1e-10	0.885
E	10	0.336	−35.31	1e-10	0.237
F	28	0.515	0.434	0.664	0.775
G _WBC	298	0.710	1.509	0.133	9.624
G _PDR	114	0.480	−13.448	1e-10	0.691

In the table are reported: number of ABC sequences analyzed, the average nucleotide diversity (π) of the ABC subfamilies analyzed using the Nei-Gojobori and SLAC methods and the probability (p-Value < 0.05) of rejecting the null hypothesis of strict-neutrality (d_N = d_S;d_N/d_S = 1) in favor of the alternative hypothesis positive selection (d_N > d_S;d_N/d_S > 1) or negative selection(d_N < d_S; d_N/d_S < 1).

ISSN: 1471-2229