首页    期刊浏览 2024年12月16日 星期一
登录注册

文章基本信息

  • 标题:Highly divergent herpesviruses in threatened river dolphins from Brazil
  • 本地全文:下载
  • 作者:Helena Exposto Novoselecki ; José Luiz Catão-Dias ; Ana Carolina Ewbank
  • 期刊名称:Scientific Reports
  • 电子版ISSN:2045-2322
  • 出版年度:2021
  • 卷号:11
  • DOI:10.1038/s41598-021-04059-0
  • 语种:English
  • 出版社:Springer Nature
  • 摘要:River dolphins are a highly threatened polyphyletic group comprised of four odontocete families: Iniidae, Pontoporiidae, Lipotidae, and Platanistidae, the first two endemic to South America. To address the knowledge gap regarding infectious agents in this cetacean group, we surveyed the presence of herpesviruses by PCR in skin and/or blood samples of live-captured Amazon ( Inia geoffrensis, n = 25) and Bolivian ( Inia boliviensis, n = 22) river dolphins of the Amazon basin and in selected tissue samples of franciscanas ( Pontoporia blainvillei, n = 27) stranded or bycaught in southeastern Brazil. Additionally, available franciscana tissue samples were examined by histopathology. Herpesvirus DNA was amplified in 13 Bolivian river dolphins (59.1%, 95% CI 38.5–79.6%) and 14 franciscanas (51.9%, 95% CI 33.0–70.7%). All Amazon river dolphins were herpesvirus-negative. Two different herpesviruses were found in Bolivian river dolphins: a previously known gammaherpesvirus detected in blood and/or skin samples of all positive individuals and a novel alphaherpesvirus in the skin of one animal. A new gammaherpesvirus was found in several franciscana samples—the first herpesvirus recorded in Pontoporiidae. Intranuclear inclusion bodies consistent with herpesvirus were observed in the lymph node of one franciscana. The high divergence among the obtained herpesviruses and those previously described can be explained by viral-host coevolution, and by the fact that these populations are fairly isolated.
国家哲学社会科学文献中心版权所有