The frequency of spontaneous triploidy in farmed Atlantic salmon produced in Norway during the period 2007-2014.

ABSTRACT:

Background

Spontaneous triploidy has been reported in a number of fish species, and is often linked with in vivo or in vitro ageing of eggs post ovulation. Here, we provide the first investigation into the frequency of spontaneous triploidy in farmed Atlantic salmon by analysing more than 4000 fish from 55 farms, and approximately 1000 recaptured escapees, all sampled in the period 2007-2014. In addition, we compare microsatellite genotyping against flow cytometry and red blood cell diameter in a set of 45 putatively diploid and 45 putatively triploid Atlantic salmon.

Results

The three methods implemented for ploidy determination gave consistent results, thus validating the methods used here. Overall, 2.0% spontaneous triploids were observed in salmon sampled on farms. The f

SUBMITTER: Glover KA 

PROVIDER: S-EPMC4396060 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature