This is consistent with the derivation process of DLA?EIAV.There is high difference in nucleotide sequence between EIAV L and other alien EIAV strains, and the homology is only about 79%.

• 同源性如此接近反映了它们之间的亲缘关系，另外EIAV L株与DA-EIAV的同源性高于其与DLA-EIAV的同源性，这符合DLA-EIAV的衍生过程。