3.5 │ The homology analysis of ALV-J strains in roosters, hens
and albumens
The viruses isolated from roosters, hens, as well as albumens, show a
homology between 94.1-99.7%, and are located in the same branch of the
phylogenetic tree (Figure 2), which demonstrate that they are derived
from the same source. The comparison of the gp85 sequence between
semen and plasma sample of roosters shows that the nucleotide homology
in most roosters (5/6) is more than 98.6%, but the other one (1/6) only
has a homology of 96%, and its homology with that of the other 5
chicken is as low as 94.1%.