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Science 25 September 1992:
Vol. 257. no. 5078, pp. 1933 - 1936
DOI: 10.1126/science.1411508
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Articles

Science, Vol 257, Issue 5078, 1933-1936
Copyright © 1992 by American Association for the Advancement of Science

articles

DNA sequences from a fossil termite in Oligo-Miocene amber and their phylogenetic implications

R DeSalle, J Gatesy, W Wheeler, and D Grimaldi

Department of Entomology, American Museum of Natural History, New York, NY 10024.

DNA was extracted from the fossil termite Mastotermes electrodominicus preserved in Oligo-Miocene amber (25 million to 30 million years old). Fragments of mitochondrial [16S ribosomal DNA (rDNA)] and nuclear (18S rDNA) genes were amplified by polymerase chain reaction. Phylogenetic analysis of fossil and extant 18S rDNA confirmed morphological cladistic analyses of living dictyopterans (termites, cockroaches, and mantids). The fossil termite shares several sequence attributes with Mastotermes darwiniensis. Addition of this fossil to living-species phylogeny is required to substantiate Mastotermes monophyly and affects molecular phylogenetic hypotheses of termites in this, the oldest DNA yet characterized.


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