PMID: 9525688Apr 3, 1998Paper

Two closely related but distinct retroviruses are associated with walleye discrete epidermal hyperplasia

Journal of Virology
L A LaPierreJames W Casey

Abstract

Walleye discrete epidermal hyperplasia (WEH) is a hyperproliferative skin disease that is prevalent on adult walleye fish throughout North America. We have identified two retroviruses associated with WEH, designated here as walleye epidermal hyperplasia virus type 1 and type 2 (WEHV1 and WEHV2), that are closely related to one another (77% identity) and to walleye dermal sarcoma virus (64% identity) within the polymerase region. WEHV1 and/or WEHV2 viral DNA was readily detected by PCR in hyperplastic tissue samples, but only low levels of viral DNA were detected in uninvolved skin. Southern blot analysis showed one to three copies of integrated WEHV2 viral DNA in lesions but did not detect WEHV2 viral DNA in uninvolved skin from the same fish. Northern blots detected abundant levels of WEHV1 and/or WEHV2 virion RNA transcripts of approximately 13 kb in hyperplastic tissue, but virion RNA was not observed in uninvolved skin and muscle. These results suggest that WEHV1 and WEHV2 are the causative agents of discrete epidermal hyperplasia.

References

Jan 1, 1992·Journal of Virology·D MartineauJ W Casey
Aug 10, 1965·Annals of the New York Academy of Sciences·R Weissenberg
Sep 1, 1981·Journal of Virology·S K Weller, H M Temin
Nov 5, 1997·Virology·S L QuackenbushJ W Casey

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Citations

Dec 25, 2003·Journal of Virology·Ching-Hung Shen, Lisa A Steiner
May 17, 2000·Proceedings of the National Academy of Sciences of the United States of America·M D LairmoreD L Holzschu
Nov 12, 2003·Journal of Virology·Donald HolzschuMichael D Lairmore
Mar 5, 2013·Veterinary Pathology·L L CoffeeP R Bowser
Apr 1, 2000·Laboratory Investigation; a Journal of Technical Methods and Pathology·L G BeckwithK C Cheng

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