FIGURE 2.

Adaptive population differentiation within L. polyactis and L. crocea. (a) Population structure revealed by PCA among five locations of L. polyactis, based on outlier loci influenced by putative local selection, where samples from the Bohai Sea, the Yellow Sea and the East China Sea are highlighted with circles. (b) Population structure revealed by PCA among three locations of L. crocea, based on outlier loci influenced by putative local selection, where samples from the each China Sea and the South China Sea are highlighted with circles. (c) Genetic clusters inferred by Admixture among five locations of L. polyactis at the most likely K value of 5, based on outlier loci, where the colours of genetic clusters correspond to those of locations in (a), and (d) genetic clusters among three locations of L. crocea at the most likely K value of 3, based on outlier loci under putative local selection, where the colours of genetic clusters are corresponding to those of locations in (b).