Fig. 3: Phylogenetic relationships and population structure of Chinese indigenous geese breeds.

a The NJ tree was constructed by identical-by-state matrix of 257 goose individuals. b, c Principal component analysis of 257 goose individuals. PC1, PC2, PC3, and PC4 explained 21.07%, 3.54%, 2.32%, and 1.93% of the observed variance, respectively. d Ancestral composition of Chinese geese breeds. K = 2–5 represented the number of assumed ancestors (K), and each color represents an ancestral lineage.