Population differentiation of RBPJ gene (chr5: 19,477,656–19,537,056 bp) between LXW and other geese. (A) The Nucleotide diversity (π) and heterozygosity (Hp) values are plotted surrounding RBPJ gene. (B) Haplotypes comparison between LXW and other geese. Major and minor alleles are labeled in beige and coral, respectively. (C) The haplotype network diagram of RBPJ gene. Each circle denotes a haplotype, the circle size and haplotype frequency are proportional, and the width and length of the line represent the difference between haplotypes. Abbreviations: FCG, Fengcheng gray goose; GFW, Guangfeng white goose; LXW, Lingxian white goose; XGG, Xingguo gray goose; Wild, wild species (ACy: Anser cygnoides, AAn: Anser anser, AAl: Anser albifrons, AEr: Anser erythropus, AFa: Anser fabalis, CCo: Cygnus columbianus).