A genetic fingerprint of Amphipoda from Icelandic waters - the baseline for further biodiversity and biogeography studies

ZooKeys
Anna M JazdzewskaSaskia Brix

Abstract

Amphipods constitute an abundant part of Icelandic deep-sea zoobenthos yet knowledge of the diversity of this fauna, particularly at the molecular level, is scarce. The present work aims to use molecular methods to investigate genetic variation of the Amphipoda sampled during two IceAGE collecting expeditions. The mitochondrial cytochrome oxidase subunit 1 (COI) of 167 individuals originally assigned to 75 morphospecies was analysed. These targeted morhospecies were readily identifiable by experts using light microscopy and representative of families where there is current ongoing taxonomic research. The study resulted in 81 Barcode Identity Numbers (BINs) (of which >90% were published for the first time), while Automatic Barcode Gap Discovery revealed the existence of 78 to 83 Molecular Operational Taxonomic Units (MOTUs). Six nominal species (Rhachotropis helleri, Arrhis phyllonyx, Deflexilodes tenuirostratus, Paroediceros propinquus, Metopa boeckii, Astyra abyssi) appeared to have a molecular variation higher than the 0.03 threshold of both p-distance and K2P usually used for amphipod species delineation. Conversely, two Oedicerotidae regarded as separate morphospecies clustered together with divergences in the order of intr...Continue Reading

References

Jul 24, 2002·Nucleic Acids Research·Kazutaka KatohTakashi Miyata
Sep 4, 2003·Proceedings. Biological Sciences·Paul D N HebertJeremy R deWaard
Sep 12, 2008·Molecular Ecology Notes·Sujeevan Ratnasingham, Paul D N Hebert
May 1, 2009·Molecular Ecology Resources·Adriana E RaduloviciFrance Dufresne
Sep 3, 2011·Molecular Ecology·N PuillandreG Achaz
Jan 19, 2013·Molecular Biology and Evolution·Kazutaka Katoh, Daron M Standley
Jul 19, 2013·PloS One·Sujeevan Ratnasingham, Paul D N Hebert
Mar 24, 2016·Molecular Biology and Evolution·Sudhir KumarKoichiro Tamura
Feb 13, 2018·ZooKeys·Saskia BrixAnali Jimenez Campean
Feb 24, 2018·ZooKeys·Anne-Nina LörzAmy Driskell

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Datasets Mentioned

BETA
MG521122
MG521157

Methods Mentioned

BETA
PCR
light
dissection

Software Mentioned

IceAGE
BIOFAR
AMPIA
Geneious
MAFFT
EUROFINS
BOLD
BIOICE
MEGA
Barcode Index Number ( BIN ) System

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