Author:
Sinclair E. A.,Murch A. R.,Di Renzo M.,Palermo M.
Abstract
Chromosome morphology was examined for male and female Gilbert’s
potoroo, Potorous gilbertii, to infer taxonomic and
evolutionary relationships among the extant taxa within the genus
Potorous. P. gilbertii has the same number of
chromosomes as P. tridactylus, 2n
= 12,13. Giemsa-banding patterns were very similar in
P. gilbertii and P. tridactylus;
however, differences were noted between the sex chromosomes. Given that the
relationships among extant Potorous are unresolved, we
mapped karyotypes onto two alternative phylogenies to suggest methods of
karyotype evolution within this group. Karyotypes and molecular-based
information from the now ‘presumed extinct’
P. platyops or sequencing of multiple gene regions for
phylogenetic analysis within the Potoroidae would provide valuable information
for resolving the issue of rooting, and hence drawing conclusions on the
evolution of karyotypes within this group.
Subject
Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics
Cited by
5 articles.
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