Table 1.
Information of 18 confirmed MDV-1 strains obtained from 17 chicken flocks in Taiwan.
Fig 1.
The gross lesions of MDV-1 clinical cases.
The gross lesions in MDV-1 infected chickens in this study include: Enlarged liver (A) with white neoplastic nodules; the variable size of multifocal grayish-white nodules in the heart (B) and spleen (C); numerous white nodules throughout the intestinal serosa surface (D); thickened proventricular wall with multiple white protrusion (E); multifocal white nodules in the kidney (F); neoplastic mass occupied ovary (F); enlarged left sacrum nerve plexus (G).
Fig 2.
Phylogenetic tree of MDV-1 strains.
The phylogenetic tree was built by using neighbor-joining (NJ) based on the complete nucleotide sequences of meq oncogene obtained from reference MDV-1 strains and Taiwan field strains. All reference strain names are labeled with the corresponding abbreviation of countries. The symbols indicate respective field MDV-1 strains in different countries and the attenuated/mild strains.
Table 2.
Specific amino acid substitutes in Meq oncoprotein of presented Taiwan MDV-1 field strains compared with the reference strains.
Table 3.
The proline content and the number of 4-proline-repeat (PPPP) within Meq oncoproteins in the presented Taiwan MDV-1 field strains and reference strains.