Intact EAV-HP Endogenous Retrovirus in Sonnerat's Jungle Fowl

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Abstract
The EAV-HP group of chicken endogenous retrovirus elements was previously shown to be defective, with large deletions of the pol gene. In this report, we demonstrate that genomes of other Gallus species also maintain EAV-HP elements with similar deletions. The chicken EAV-HP1 locus was detected in both red ( Gallus gallus gallus ) and Sonnerat's ( Gallus sonneratii ) jungle fowl with identical integration sites, indicating that these elements had integrated before separation of the Gallus species. Furthermore, we demonstrate for the first time that the G. sonneratii genome carries EAV-HP elements with intact pol regions.