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Science. 2006 Jan 6;311(5757):73-7.

The late Miocene radiation of modern Felidae: a genetic assessment.

Author information

1
Laboratory of Genomic Diversity, National Cancer Institute, Frederick, MD 21702-1201, USA. johnsonw@ncifcrf.gov

Abstract

Modern felid species descend from relatively recent (<11 million years ago) divergence and speciation events that produced successful predatory carnivores worldwide but that have confounded taxonomic classifications. A highly resolved molecular phylogeny with divergence dates for all living cat species, derived from autosomal, X-linked, Y-linked, and mitochondrial gene segments (22,789 base pairs) and 16 fossil calibrations define eight principal lineages produced through at least 10 intercontinental migrations facilitated by sea-level fluctuations. A ghost lineage analysis indicates that available felid fossils underestimate (i.e., unrepresented basal branch length) first occurrence by an average of 76%, revealing a low representation of felid lineages in paleontological remains. The phylogenetic performance of distinct gene classes showed that Y-chromosome segments are appreciably more informative than mitochondrial DNA, X-linked, or autosomal genes in resolving the rapid Felidae species radiation.

PMID:
16400146
DOI:
10.1126/science.1122277
[Indexed for MEDLINE]
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