Pubblicazione scientifica

Exploring Canadian Echinoderm Diversity through DNA Barcodes

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità	monitoraggio impatti climatici

RIASSUNTO

DNA barcoding has proven an effective tool for species identification in varied groups of marine invertebrates including crustaceans, molluscs, polychaetes and echinoderms. In this study, we further validate its utility by analyzing almost half of the 300 species of Echinodermata known from Canadian waters. COI sequences from 999 specimens were assigned to 145 BINs. In most cases, species discrimination was straightforward due to the large difference (25-fold) between mean intra- (0.48%) and inter- (12.0%) specific divergence. Six species were flagged for further taxonomic investigation because specimens assigned to them fell into two or three discrete sequence clusters. The potential influence of larval dispersal capacity and glacial events on patterns of genetic diversity is discussed for 19 trans-oceanic species. Although additional research is needed to clarify biogeographic patterns and resolve taxonomic questions, this study represents an important step in the assembly of a DNA barcode library for all Canadian echinoderms, a valuable resource for future biosurveillance programs.

DATA

Data di pubblicazione: 21/11/2016

AUTORI

LAYTON KARA K S
CORSTORPHINE ERIN A
HEBERT PAUL D N

ENTE DI AFFERENZA

CTR BIODIVERSITY GENOMICS BIODIVERSITY INST ONTARIO UNIV GUELPH GUELPH ON N1G 2W1 CANADA
UNIV DEGLI STUDI DELLA TUSCIA ITALY

RIVISTA

PLoS ONE, 11(11), e0166118

IMPACT FACTOR

2,870

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