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Updated: Jun 7, 2026

Laboratory Protocol for Genetic Gut Content Analyses of Aquatic Macroinvertebrates Using Group-specific rDNA Primers
Published on: October 5, 2017
Remarkably low mtDNA control-region diversity and shallow population structure in Pacific cod Gadus macrocephalus
1Fisheries College, Ocean University of China, Qingdao, Shandong 266003, China Liaoning Marine Fisheries Research Institute, Dalian, Liaoning 116023, China.
Abstract:
To investigate the genetic diversity and describe the population structure in Gadus macrocephalus, a 452 base pair (bp) fragment of the mitochondrial DNA control region was analysed in 259 individuals. The results showed remarkably low nucleotide diversity and a lack of genealogical structure. Small but significant genetic differentiations, however, were detected among north-western Pacific populations, but no large-scale regional differences were detected. These results indicate that populations of G. macrocephalus in the north-western Pacific are genetically subdivided and represent evolutionary lineages that should be managed individually.
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