- Seafood Production and Evolutionary Genetics, Plant and Food Research & The University of Auckland, Nelson, New Zealand
- Adaptation, Behavior & Social Evolution, Evolutionary Applications, Evolutionary Ecology, Experimental Evolution, Genetic conflicts, Genotype-Phenotype, Macroevolution, Molecular Evolution, Morphological Evolution, Non Genetic Inheritance, Phenotypic Plasticity, Population Genetics / Genomics, Quantitative Genetics, Reproduction and Sex, Sexual Selection, Speciation
Evolution at two time-frames: ancient and common origin of two structural variants involved in local adaptation of the European plaice (Pleuronectes platessa)
Genomic structural variants involved in local adaptation of the European plaice
Awareness has been growing that structural variants in the genome of species play a fundamental role in adaptive evolution and diversification . Here, Le Moan and co-authors  report empirical genomic-wide SNP data on the European plaice (Pleuronectes platessa) across a major environmental transmission zone, ranging from the North Sea to the Baltic Sea. Regions of high linkage disequilibrium suggest the presence of two structural variants that appear to have evolved 220 kya. These two putative structural variants show weak signatures of isolation by distance when contrasted against the rest of the genome, but the frequency of the different putative structural variants appears to co-vary in some parts of the studied range with the environment, indicating the involvement of both selective and neutral processes. This study adds to the mounting body of evidence that structural genomic variants harbour significant information that allows species to respond and adapt to the local environmental context.
 Wellenreuther, M., Mérot, C., Berdan, E., & Bernatchez, L. (2019). Going beyond SNPs: the role of structural genomic variants in adaptive evolution and species diversification. Molecular ecology, 28(6), 1203-1209. doi: 10.1111/mec.15066
 Le Moan, A. Bekkevold, D. & Hemmer-Hansen J. (2020). Evolution at two time-frames: ancient and common origin of two structural variants involved in local adaptation of the European plaice (Pleuronectes platessa). bioRxiv, 662577, ver. 5 peer-reviewed and recommended by PCI Evol Biol. doi: 10.1101/662577