Australian Sphingidae--DNA barcodes challenge current species boundaries and distributions.

<h4>Main objective</h4>We examine the extent of taxonomic and biogeographical uncertainty in a well-studied group of Australian Lepidoptera, the hawkmoths (Sphingidae).<h4>Methods</h4>We analysed the diversity of Australian sphingids through the comparative analysis of their...

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Autores principales:	Rodolphe Rougerie, Ian J Kitching, Jean Haxaire, Scott E Miller, Axel Hausmann, Paul D N Hebert
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7881b8ae68e049ba901801d4b0b5264c
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spelling	oai:doaj.org-article:7881b8ae68e049ba901801d4b0b5264c2021-11-25T06:10:01ZAustralian Sphingidae--DNA barcodes challenge current species boundaries and distributions.1932-620310.1371/journal.pone.0101108https://doaj.org/article/7881b8ae68e049ba901801d4b0b5264c2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24987846/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Main objective</h4>We examine the extent of taxonomic and biogeographical uncertainty in a well-studied group of Australian Lepidoptera, the hawkmoths (Sphingidae).<h4>Methods</h4>We analysed the diversity of Australian sphingids through the comparative analysis of their DNA barcodes, supplemented by morphological re-examinations and sequence information from a nuclear marker in selected cases. The results from the analysis of Australian sphingids were placed in a broader context by including conspecifics and closely related taxa from outside Australia to test taxonomic boundaries.<h4>Results</h4>Our results led to the discovery of six new species in Australia, one case of erroneously synonymized species, and three cases of synonymy. As a result, we establish the occurrence of 75 species of hawkmoths on the continent. The analysis of records from outside Australia also challenges the validity of current taxonomic boundaries in as many as 18 species, including Agrius convolvuli (Linnaeus, 1758), a common species that has gained adoption as a model system. Our work has revealed a higher level of endemism than previously recognized. Most (90%) Australian sphingids are endemic to the continent (45%) or to Australia, the Pacific Islands and the Papuan and Wallacean regions (45%). Only seven species (10%) have ranges that extend beyond this major biogeographical boundary toward SE Asia and other regions of the Old World.<h4>Main conclusions</h4>This study has established that overlooked cryptic diversity and inaccurate species delineation produced significant misconceptions concerning diversity and distribution patterns in a group of insects that is considered well known taxonomically. Because DNA barcoding represents a straightforward way to test taxonomic boundaries, its implementation can improve the accuracy of primary diversity data in biogeography and conservation studies.Rodolphe RougerieIan J KitchingJean HaxaireScott E MillerAxel HausmannPaul D N HebertPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 7, p e101108 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rodolphe Rougerie Ian J Kitching Jean Haxaire Scott E Miller Axel Hausmann Paul D N Hebert Australian Sphingidae--DNA barcodes challenge current species boundaries and distributions.
description	<h4>Main objective</h4>We examine the extent of taxonomic and biogeographical uncertainty in a well-studied group of Australian Lepidoptera, the hawkmoths (Sphingidae).<h4>Methods</h4>We analysed the diversity of Australian sphingids through the comparative analysis of their DNA barcodes, supplemented by morphological re-examinations and sequence information from a nuclear marker in selected cases. The results from the analysis of Australian sphingids were placed in a broader context by including conspecifics and closely related taxa from outside Australia to test taxonomic boundaries.<h4>Results</h4>Our results led to the discovery of six new species in Australia, one case of erroneously synonymized species, and three cases of synonymy. As a result, we establish the occurrence of 75 species of hawkmoths on the continent. The analysis of records from outside Australia also challenges the validity of current taxonomic boundaries in as many as 18 species, including Agrius convolvuli (Linnaeus, 1758), a common species that has gained adoption as a model system. Our work has revealed a higher level of endemism than previously recognized. Most (90%) Australian sphingids are endemic to the continent (45%) or to Australia, the Pacific Islands and the Papuan and Wallacean regions (45%). Only seven species (10%) have ranges that extend beyond this major biogeographical boundary toward SE Asia and other regions of the Old World.<h4>Main conclusions</h4>This study has established that overlooked cryptic diversity and inaccurate species delineation produced significant misconceptions concerning diversity and distribution patterns in a group of insects that is considered well known taxonomically. Because DNA barcoding represents a straightforward way to test taxonomic boundaries, its implementation can improve the accuracy of primary diversity data in biogeography and conservation studies.
format	article
author	Rodolphe Rougerie Ian J Kitching Jean Haxaire Scott E Miller Axel Hausmann Paul D N Hebert
author_facet	Rodolphe Rougerie Ian J Kitching Jean Haxaire Scott E Miller Axel Hausmann Paul D N Hebert
author_sort	Rodolphe Rougerie
title	Australian Sphingidae--DNA barcodes challenge current species boundaries and distributions.
title_short	Australian Sphingidae--DNA barcodes challenge current species boundaries and distributions.
title_full	Australian Sphingidae--DNA barcodes challenge current species boundaries and distributions.
title_fullStr	Australian Sphingidae--DNA barcodes challenge current species boundaries and distributions.
title_full_unstemmed	Australian Sphingidae--DNA barcodes challenge current species boundaries and distributions.
title_sort	australian sphingidae--dna barcodes challenge current species boundaries and distributions.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/7881b8ae68e049ba901801d4b0b5264c
work_keys_str_mv	AT rodolpherougerie australiansphingidaednabarcodeschallengecurrentspeciesboundariesanddistributions AT ianjkitching australiansphingidaednabarcodeschallengecurrentspeciesboundariesanddistributions AT jeanhaxaire australiansphingidaednabarcodeschallengecurrentspeciesboundariesanddistributions AT scottemiller australiansphingidaednabarcodeschallengecurrentspeciesboundariesanddistributions AT axelhausmann australiansphingidaednabarcodeschallengecurrentspeciesboundariesanddistributions AT pauldnhebert australiansphingidaednabarcodeschallengecurrentspeciesboundariesanddistributions
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Australian Sphingidae--DNA barcodes challenge current species boundaries and distributions.

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