TABLE 1.

Polymorphism and divergence of EF-1α in sibling species of cyamids on North Atlantic (NA) and southern hemisphere (SH) right whales (Eubalaena glacialis and E. australis)

Species	n	L (Lc)	S	π	θW	DT	Shared polymorphisms	Fixed differences (nearly)	FST
C. ovalis NA	26	1365	22	0.0035	0.0043	−0.66
C. ovalis SH	28	(1365)	26	0.0028	0.0049	−1.57	7	0 (5)	0.46
C. gracilis NA	30	1365	47	0.0050	0.0053	−0.24
C. gracilis SH	14	(1223)	23	0.0044	0.0046	−0.22	10	2 (5)	0.54
C. erraticus NA	14	1272	26	0.0062	0.0068	−0.38
C. erraticus SH	18	(1209)	33	0.0054	0.0075	−1.14	12	0 (1)	0.12

n, number of alleles sampled (twice the number of individuals); L, nominal (maximum) length of coding sequence determined for each allele (base pairs); L_c, length of shared homology for all alleles in sample (used to calculate π, θ_W, D_T, and F_ST); S, number of segregating (polymorphic) sites; π, nucleotide diversity (heterozygosity); θ_W, population mutation parameter estimated from segregating sites; D_T, Tajima's D; shared polymorphisms, sites where the same two nucleotides occur in both samples; fixed differences, sites fixed for different nucleotides in the two samples; (nearly), one sample is fixed for the nucleotide that is less frequent in the other sample, or the difference in nucleotide frequencies exceeds 0.75; F_ST, inbreeding (fixation) of subpopulations (hemispheres) relative to the total (nominal species), estimated by the method of Hudson et al. (1992).