Inter- and intraspecific variation in body- and genome size in calanoid copepods from temperate and arctic waters.

ABSTRACT: The tendency of ectotherms to get larger in the cold (Bergmann clines) has potentially great implications for individual performance and food web dynamics. The mechanistic drivers of this trend are not well understood, however. One fundamental question is to which extent variation in body size is attributed to variation in cell size, which again is related to genome size. In this study, we analyzed body and genome size in four species of marine calanoid copepods, Calanus finmarchicus, C. glacialis, C. hyperboreus and Paraeuchaeta norvegica, with populations from both south Norwegian fjords and the High Arctic. The Calanus species showed typical interspecific Bergmann clines, and we assessed whether they also displayed similar intraspecific variations-and if correlation between genome size

SUBMITTER: Leinaas HP 

PROVIDER: S-EPMC4983576 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature