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Biochemical evidence that "new" influenza virus strains in nature may arise by recombination (reassortment).

作者信息

Desselberger U, Nakajima K, Alfino P, Pedersen F S, Haseltine W A, Hannoun C, Palese P

出版信息

Proc Natl Acad Sci U S A. 1978 Jul;75(7):3341-5. doi: 10.1073/pnas.75.7.3341.

DOI:10.1073/pnas.75.7.3341
PMID:277933
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC392771/
Abstract

Oligonucleotide analysis of two avian influenza A viruses (Hav6N2 and Hav6Nav4) isolated in nature showed identical or almost identical patterns for the corresponding M and HA genes; 24 of 25 and 13 of 13 large oligonucleotides were indistinguishable by two-dimensional gel analysis. On the other hand, remarkable differences in the oligonucleotide patterns of the remaining genes were observed. Only 2 of 11 oligonucleotide spots of the NS gene, 10 of 27 spots of the NA/NP genes, and 22 of 49 spots of the P genes were indistinguishable between the two strains. On the basis of this observation that at least two genes of these viruses are virtually identical whereas others show easily detectable differences, we conclude that the two avian strains are related to each other by a recombinational event. In addition, it was found that animals in nature can be doubly infected with influenza viruses. Both lines of evidence strongly suggest that recombination is at least one mechanism by which "new" influenza virus strains emerge in nature.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/28a81027dd0f/pnas00019-0339-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/08e801dca905/pnas00019-0337-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/dec8095bc0ee/pnas00019-0338-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/95575ec669e0/pnas00019-0338-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/70325183de20/pnas00019-0339-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/28a81027dd0f/pnas00019-0339-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/08e801dca905/pnas00019-0337-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/dec8095bc0ee/pnas00019-0338-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/95575ec669e0/pnas00019-0338-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/70325183de20/pnas00019-0339-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/222c/392771/28a81027dd0f/pnas00019-0339-b.jpg

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