期刊
MOLECULAR ECOLOGY RESOURCES
卷 14, 期 4, 页码 706-715出版社
WILEY
DOI: 10.1111/1755-0998.12233
关键词
Australia; Automatic Barcode Gap Discovery; Barcode Index Number; DNA barcoding; General Mixed Yule-coalescent; Hypertrophinae
资金
- Research Foundation of the University of Helsinki
- Finnish Concordia Fund
- Ella and Georg Ehrnrooth Foundation
- government of Canada through Genome Canada
- Ontario Genomics Institute in support of the International Barcode of Life project
- NSERC
The analysis of DNA barcode sequences with varying techniques for cluster recognition provides an efficient approach for recognizing putative species (operational taxonomic units, OTUs). This approach accelerates and improves taxonomic workflows by exposing cryptic species and decreasing the risk of synonymy. This study tested the congruence of OTUs resulting from the application of three analytical methods (ABGD, BIN, GMYC) to sequence data for Australian hypertrophine moths. OTUs supported by all three approaches were viewed as robust, but 20% of the OTUs were only recognized by one or two of the methods. These OTUs were examined for three criteria to clarify their status. Monophyly and diagnostic nucleotides were both uninformative, but information on ranges was useful as sympatric sister OTUs were viewed as distinct, while allopatric OTUs were merged. This approach revealed 124 OTUs of Hypertrophinae, a more than twofold increase from the currently recognized 51 species. Because this analytical protocol is both fast and repeatable, it provides a valuable tool for establishing a basic understanding of species boundaries that can be validated with subsequent studies.
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