"Star Phylogeny" of Atlantic
Cod (Gadus
morhua) mtDNA genotypes
(Carr &
Crutcher 1997)
Phylogenetic relationships among 50
mitochondrial
cytochrome b haplotypes in Atlantic cod (Gadus
morhua). A
majority-rule consensus diagram is shown: numbers on branches
indicate
the percentage occurrence of that branch in all trees of
minimum
length. Genotype A is the majority genotype in all
populations examined
from the Northwest Atlantic (mean frequency >70%): most variant
genotypes
differ from it by a single nucleotide substitution.