Nucleon and nucleotide diversities (mean±SE)
were similar among localities: Alabama (0.793±0.028;
0.003±0.002), Louisiana (0.770±0.030; 0.002±0.002),
and Texas (0.797±0.028; 0.003±0.002). Results of exact
tests of homogeneity of haplotype distributions among
cohorts at each locality and among localities (cohorts
within localities pooled) were non-significant (P>0.05).
Results from AMOVA also were non-significant
(FST=0.002, P=0.422; FSC=0.003, P=0.278). Consequently,
all mtDNA haplotypes were pooled for all
subsequent analyses.