MtDNA sequence variation in Newfoundland
Caribou by clade
Phylogenetic analysis of haplotypes
show that they occur in four genetic lineages (clades),
A, B, C, & D (Figure 1).
The table gives counts and frequencies of
each clade in each WMU, and for each WMU the number of mtDNA
sequences (haplogroups) as defined by the
number of variable (segregating) SNP sites.
Indices of variation include (1) Haplotypic Diversity (Hd), the
probability that any two randomly chosen Caribou will have
identical DNA sequences, (2) average
pairwise difference (K), counted as the number
of SNP differences for all (N)(N-1)/2
comparisons in the WMU, and (3) Nucleotide
Diversity (π),
which is K corrected for the number of nucleotides
compared in each case.
mtDNA sequences are haploid:
the data are similar to those for diploid nuclear
alleles, neglecting the occurrence of the latter in
genotypic pairs. For example, Hd
and He can
both be simulated by the 'random-draw-&-replacement
model', except for a small correction in non-selfing
diploids that two alleles may not be drawn from
the same individual.
Table 2 from Wilkerson et al. 2018;
Text material © 2019 by Steven M.
Carr