Fig. 1From: The four of structural genes sequences of a porcine epidemic diarrhea virus from domestic piglet in Fujian, ChinaPhylogenetic trees were constructed using MEGA 5.2 software based on comparisons of N, E, M and S nucleotide sequences. a Tree based on nucleotide sequences of N gene. b Tree based on nucleotide sequences of E gene. c Tree based on nucleotide sequences of M gene. d Tree based on nucleotide sequences of S geneBack to article page