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A Molecular Phylogeny for Bats Illuminates Biogeography and the Fossil Record
Emma C. Teeling,1,2*Mark S. Springer,3*Ole Madsen,4Paul Bates,5Stephen J. O'Brien,6*William J. Murphy1,7
Bats make up more than 20% of extant mammals, yet their evolutionaryhistory is largely unknown because of a limited fossil recordand conflicting or incomplete phylogenies. Here, we presenta highly resolved molecular phylogeny for all extant bat families.Our results support the hypothesis that megabats are nestedamong four major microbat lineages, which originated in theearly Eocene [52 to 50 million years ago (Mya)], coincidentwith a significant global rise in temperature, increase in plantdiversity and abundance, and the zenith of Tertiary insect diversity.Our data suggest that bats originated in Laurasia, possiblyin North America, and that three of the major microbat lineagesare Laurasian in origin, whereas the fourth is Gondwanan. Combiningprinciples of ghost lineage analysis with molecular divergencedates, we estimate that the bat fossil record underestimates(unrepresented basal branch length, UBBL) first occurrencesby, on average, 73% and that the sum of missing fossil historyis 61%.
1 Laboratory of Genomic Diversity, Basic Research Program, SAIC-Frederick, Inc., National Cancer Institute, Frederick, MD 21702, USA. 2 Department of Zoology, University College Dublin, Belfield, Dublin 4, Ireland. 3 Department of Biology, University of California, Riverside, CA 92521, USA. 4 Department of Biochemistry, Radboud University of Nijmegen, Post Office Box 9101, 6500 HB Nijmegen, Netherlands. 5 Harrison Institute, Centre for Systematics and Biodiversity Research, Bowerwood House, 15 St. Botolphs Road, Sevenoaks, Kent TN13 3AQ, UK. 6 The Laboratory of Genomic Diversity, National Cancer Institute, Frederick, MD 21702, USA. 7 Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA.
* To whom correspondence should be addressed. E-mail: emma.teeling{at}ucd.ie; obrien{at}mail.ncifcrf.gov; mark.springer{at}ucr.edu
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Nancy B. Simmons (28 January 2005) Science307 (5709), 527.
[DOI: 10.1126/science.1108871] |Summary »|Full Text »|PDF »
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