Serological screening of sera from orang-utans demonstrated a high percentage of sera that cross-reacted with antigens of the polyomavirus (PyV) simian virus 40. Analysis of archival DNA samples from 71 Bornean and eight Sumatran orang-utans with a broad-spectrum PCR assay resulted in the detection of PyV infections in 11 animals from both species. Sequence analysis of the amplicons revealed considerable differences between the PyVs from Bornean and Sumatran orang-utans. The genome from two PyVs, one from each species, was therefore amplified and sequenced. Both viral genomes revealed a characteristic PyV architecture, but lacked an obvious agnogene. Neighbour-joining analysis positioned the viruses in a large cluster together with viruses from bats, bovines, rodents and several primate PyVs from chimpanzees, African green monkeys, squirrel monkeys and the human Merkel cell PyV.
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http://dx.doi.org/10.1099/vir.0.017673-0 | DOI Listing |
bioRxiv
December 2024
Department of Biology, Penn State University, University Park, PA 16802, USA.
Non-canonical (non-B) DNA structures-e.g., bent DNA, hairpins, G-quadruplexes, Z-DNA, etc.
View Article and Find Full Text PDFbioRxiv
November 2024
Department of Biology, Penn State University, University Park, PA 16802, USA.
G-quadruplexes (G4s) are non-canonical DNA structures that can form at approximately 1% of the human genome. G4s contribute to point mutations and structural variation and thus facilitate genomic instability. They play important roles in regulating replication, transcription, and telomere maintenance, and some of them evolve under purifying selection.
View Article and Find Full Text PDFTrop Life Sci Res
March 2024
Department of Tropical Biology, Faculty of Biology, Universitas Gadjah Mada. Jl. Teknika Selatan, Sinduadi. Mlati, Sleman, 55281. Special Region of Yogyakarta, Indonesia.
Rehabilitating and releasing orangutans back into the wild is one of the conservation strategies being pursued to conserve orangutans. However, the species determination between Sumatran, Tapanuli, and Bornean orangutans is essential for reintroduction to avoid outbreeding depression, which could lead to DNA hybridisation and increase the probability of recessive characters. Here, we reported on an investigation of three orangutans in which DNA forensic techniques were used to identify the species before release and reintroduction to their habitat.
View Article and Find Full Text PDFbioRxiv
October 2024
Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA, USA.
Nature
June 2024
National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
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