A preliminary framework for DNA barcoding, incorporating the multispecies coalescent

Dowton, Mark, Meiklejohn, Kelly, Cameron, Stephen L., & Wallman, James F. (2014) A preliminary framework for DNA barcoding, incorporating the multispecies coalescent. Systematic Biology, 63(4), pp. 639-644.

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Abstract

The capacity to identify an unknown organism using the DNA sequence from a single gene has many applications. These include the development of biodiversity inventories (Janzen et al. 2005), forensics (Meiklejohn et al. 2011), biosecurity (Armstrong and Ball 2005), and the identification of cryptic species (Smith et al. 2006). The popularity and widespread use (Teletchea 2010) of the DNA barcoding approach (Hebert et al. 2003), despite broad misgivings (e.g., Smith 2005; Will et al. 2005; Rubinoff et al. 2006), attest to this. However, one major shortcoming to the standard barcoding approach is that it assumes that gene trees and species trees are synonymous, an assumption that is known not to hold in many cases (Pamilo and Nei 1988; Funk and Omland 2003). Biological processes that violate this assumption include incomplete lineage sorting and interspecific hybridization (Funk and Omland 2003). Indeed, simulation studies indicate that the concatenation approach (in which these two processes are ignored) can lead to statistically inconsistent estimation of the species tree (Kubatko and Degnan 2007)...

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ID Code: 73194
Item Type: Journal Article
Refereed: Yes
Keywords: Framework, DNA Barcoding, Multispecies Coalescent, Gene Trees, Species Trees
DOI: 10.1093/sysbio/syu028
ISSN: 1076-836X
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 Oxford University Press
Deposited On: 03 Jul 2014 00:37
Last Modified: 24 Aug 2014 05:09

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