Pubblicazione scientifica

Characterization of polymorphic microsatellite loci in the Antarctic krill Euphausia superba

FILONE TECNOLOGICO	TEMA
produzione e cattura

RIASSUNTO

Background

The Antarctic krill, Euphausia superba is a pelagic crustacean, abundant in high-density swarms (10 000 – 30 000 ind/m2) with a circumpolar distribution and a key role in the food web of the Southern Ocean. Only three EST derived microsatellite markers have been used in previous genetic studies, hence we developed additional highly polymorphic microsatellite markers to allow robust studies of the genetic variability and population differentiation within this species.

Findings

The microsatellite markers described here were obtained through an enriched genomic library, followed by 454 pyrosequencing. A total of 10 microsatellite markers were tested in 32 individuals from the Antarctic Peninsula. One of the tested loci was fixed for one allele while the other was variable. Of the remaining nine markers, seven showed no departure from Hardy-Weinberg equilibrium. The mean number of alleles was 14.9.

Conclusions

These markers open perspectives for population genetic studies of this species to unravel genetic structure, dispersal and population biology, vital information for future conservation.

DATA

Data di pubblicazione: 03/02/2014

AUTORI

CANDEIAS RUI
TEIXEIRA SARA
DUARTE CARLOS M
PEARSON GARETH A

ENTE DI AFFERENZA

CTR MARINE SCIENCES CCMAR CIMAR UNIV ALGARVE GAMBELAS CAMPUS 8005 139 FARO PORTUGAL
INST MEDITERRANEO DE ESTUDIOS AVANZADOS IMEDEA CSIC UIB MIQUEL MARQUES 21 07190 ESPORLES BALEARES SPAIN
UWA OCEAN INST & SCHOOL OF PLANT BIOLOGY UNIV WESTERN AUSTRALIA

RIVISTA

BMC Research Notes, 7, 73

IMPACT FACTOR

1,340

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