^pof;
Pathogenic;
Biology;
and;
lmmunology,;
Guangzhou;
Medical;
University,;
Guangzhou;
510182,;
China;
^pof;
Veterinary;
Medicine,;
Foshan;
Science;
and;
Technology;
University,;
Foshan;
528231,;
China;
同义密码子使用; 伪狂犬病病毒; S1基因; 疱疹病毒; 表征; PRV; 大肠杆菌; 遗传异质性;