Title: A standard DNA taxonomy for insects?
Author: Cognato, Anthony I.;
Source: In: Bentz, Barbara; Cognato, Anthony; Raffa, Kenneth, eds. Proceedings from the Third Workshop on Genetics of Bark Beetles and Associated Microorganisms. Proc. RMRS-P-45. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 11-12
Publication Series: Proceedings (P)
Description: Identification of insect species is often problematic because of limited morphological and/or biological characters. DNA data have been used in many phylogenetic studies to help identify and revise species boundaries (Savolainen and others 2005). For many studies, percent similarity DNA compared between species was summarized and intra- and interspecific variation patterns were observed (for example, Brower and Boyce 1991). These patterns suggested that animal species, at most, exhibit 2.0 percent difference among conspecifics (Hebert and others 2004). A group of individuals that exhibited DNA difference greater than the 2.0 percent boundary would potentially represent a new species. Thus, the difference between intra- and interspecific percent DNA variation has been used as a “genetic yardstick” to recognize new species (for example, Hung and others 1999).
Keywords: DNA, taxonomy, phylogenetic studies, insect species
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)
XML: View XML
Cognato, Anthony I. 2007. A standard DNA taxonomy for insects?. In: Bentz, Barbara; Cognato, Anthony; Raffa, Kenneth, eds. Proceedings from the Third Workshop on Genetics of Bark Beetles and Associated Microorganisms. Proc. RMRS-P-45. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 11-12
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility