Fig. 3

Sequence analysis of DNA, cDNA and amino acids of the insertion site. a The prediction of the boundary between exon 3 and intron and the position of the insertion sequence of white geese by DNA sequence alignment of the mRNA sequence of gray geese (the red arrow represents the position of the insertion sequence; the boundary of exon 3 and intron is indicated by a black arrow). b The prediction of the amino acid sequence of gray geese and white geese (the red line represents the potential pretermination codon)