DNA barcoding of the genus Gampsocleis (Orthoptera, Tettigoniidae) from China
ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY(2024)
Abstract
DNA barcoding is a useful addition to the traditional morphology-based taxonomy. A ca. 650 bp fragment of the 5 ' end of mitochondrial cytochrome c oxidase subunit I (hereafter COI-5P) DNA barcoding was sued as a practical tool for Gampsocleis species identification. DNA barcodes from 889 specimens belonging to 8 putative Gampsocleis species was analyzed, including 687 newly generated DNA barcodes. These barcode sequences were clustered/grouped into Operational Taxonomic Units (OTUs) using the criteria of five algorithms, namely Barcode Index Number (BIN) System, Assemble Species by Automatic Partitioning (ASAP), a Java program uses an explicit, determinate algorithm to define Molecular Operational Taxonomic Unit (jMOTU), Generalized Mixed Yule Coalescent (GMYC), and Bayesian implementation of the Poisson Tree Processes model (bPTP). The Taxon ID Tree grouped sequences of morphospecies and almost all MOTUs in distinct nonoverlapping clusters. Both long- and short-winged Gampsocleis species are reciprocally monophyletic in the Taxon ID Tree. In BOLD, 889 barcode sequences are assigned to 17 BINs. The algorithms ASAP, jMOTU, bPTP and GMYC clustered the barcode sequences into 6, 13, 10, and 23 MOTUs, respectively. BIN, ASAP, and bPTP algorithm placed three long-winged species, G. sedakovii, G. sinensis and G. ussuriensis within the same MOTU. All species delimitation algorithms split two short-winged species,G. fletcheri and G. gratiosa into at least two MOTUs each, except for ASAP algorithm. More detailed molecular and morphological integrative studies are required to clarify the status of these MOTUs in the future. DNA barcodes from 889 specimens belonging to six Gampsocleis species was analyzed, including 687 newly generated barcode sequences.Both BIN and ASAP algorithm placed two long-winged species, G. sedakovii and G. sinensis within the same MOTU, meanwhile, all species delimitation algorithms split three short-winged species, G. carinata, G. fletcheri and G. gratiosa into at least two MOTUs each, except for ASAP algorithm.1.2.Highlightsimage DNA barcodes from 889 individuals and eight Gampsocleis species were analyzed, including sequences from previous studies and 687 newly generated DNA barcodes.Both BIN and ASAP algorithm placed two long-winged species, G. sedakovii and G. sinensis within the same MOTU.All species delimitation algorithms split three short-winged species, G. fletcheri and G. gratiosa into at least two MOTUs each, except for ASAP algorithm.
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Key words
DNA barcode,Gampsocleis,species delimitation,COI-5P sequences
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