Fig. 4From: Whole-genome resequencing reveals genetic differences and the genetic basis of parapodium number in Russian and Chinese Apostichopus japonicusGenetic differentiation among A. japonicus subpopulations Note: a Linkage disequilibrium for three subgroups. b Linkage disequilibrium for seven sampling groups. c Nucleotide diversity analysis using 100Â kb sliding windows and Wilcoxon test for significance testing. d Nucleotide polymorphisms (Pi) in three subpopulations. The red block represents the Russia subgroup, the green block represents the China_Group1 subgroup, and the blue block represents the China_Group2 subgroupBack to article page