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Barcoding Antarctic biodiversity: current status and the CAML initiative, a case study of marine invertebrates.

Grant, Rachel Anne; Linse, Katrin. 2009 Barcoding Antarctic biodiversity: current status and the CAML initiative, a case study of marine invertebrates. Polar Biology, 32 (11). 1629-1637. 10.1007/s00300-009-0662-x

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Abstract/Summary

The Census of Antarctic Marine Life (CAML) aims to collate DNA barcode data for Antarctic marine species. DNA barcoding is a technique that uses a short gene sequence from a standardised region of the genome as a diagnostic 'biomarker' for species. This study aimed to quantify genetic data currently available in GenBank in order to establish whether a representative cross-section of Antarctic marine taxa and bio-geographic areas has been sequenced and to propose priorities for barcoding, with a particular emphasis on marine invertebrate species. It was found that, amongst marine invertebrate fauna, sequence information covers a limited range of taxa and areas-mainly Crustacea, Annelida and Mollusca from the Weddell Sea and the Antarctic Peninsula. Only 15% of genes sequenced in Antarctic marine invertebrates were the standard barcode gene cytochrome c oxidase subunit 1 (CO1), the majority were other nuclear and mitochondrial genes. There is an urgent need for more in-depth genetic barcoding and species identification studies in Antarctic science, from a range of taxa and areas, given the rate of climate-driven habitat changes that might lead to extinctions in the region. CAML hopes to redress the balance, by collecting and sequencing over the circum-Antarctic area, using material from voyages that occurred during 2008 and 2009, within the framework of the International Polar Year (IPY).

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1007/s00300-009-0662-x
Programmes: BAS Programmes > Global Science in the Antarctic Context (2005-2009) > Biodiversity, Functions, Limits and Adaptation from Molecules to Ecosystems
ISSN: 0722-4060
NORA Subject Terms: Marine Sciences
Biology and Microbiology
Ecology and Environment
Date made live: 02 Nov 2010 08:39
URI: http://nora.nerc.ac.uk/id/eprint/10972

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