A molecular phylogeny of the genus XXXX .

@entity1641 @entity43056 @entity742 @entity12047 @entity2328 @entity43057 @entity291 @entity73354
Three nucleotide data sets, two mitochondrial (COI and @entity73354 ) and one nuclear (ribosomal ITS1), have been investigated in order to resolve relationships among species and strains of the genus @entity43056 . The data have some unusual properties in that mitochondrial heteroplasmy was detected in one strain of @entity12047 , and more than one class of ITS1 sequence variant can occur in a single isolate. The data failed to support the hypothesis that @entity12047 , as it is currently viewed, is a single valid species. Rather, the strains of @entity12047 seem to comprise at least three evolutionarily diverse groups, the @entity742 group, @entity291 group and @entity1641 group. Molecular distances between them are comparable to, or greater than, molecular evolutionary distances observed between recognized species. The affinities of the cervid strain of @entity12047 are unclear because of ambiguous data, but this strain does not appear to be ancestral to others. @entity2328 may not be distinct from @entity12047 . However, the remaining two species. @entity43056 and @entity43057 appear distinct and rather distant from the first two. Based on the results presented here, taxonomic revision of the genus is clearly warranted.
