Geography Reference
In-Depth Information
Figure 7.5
Schematic representation of four different aspects of genealogical
agreement.(a)Agreementacrosssequencecharacterswithinagene;(b)agreement
in significant genealogical partitions across two different genes within a species; (c)
agreement in the geography of gene tree partitions across two codistributed spe-
cies; (d) agreement of gene tree partitions with spatial boundaries between two biotic
components.
Phylogeographic Patterns
Five different phylogeographic patterns can be
characterized for mtDNA gene cladograms (Avise 2000) (
fig. 7.6
):
Category I (deep gene tree, major lineages allopatric) (
fig. 7.6a
): It is
characterized by the presence of spatially circumscribed haplotypes, separ-
atedbylargemutationaldistances.Thispatternappearscommonlyinphylo-
