Abstract：
:Potato virus Y (PVY) is a member of the genus Potyvirus, family Potyviridae, is considered one of the most devastating pest affecting economically important crops, such as potato, tobacco, tomato and pepper, representing a serious threat due to high incidence and worldwide distribution. Its economic significance as well as it biological and molecular complexities have aroused great attention, thus several studies have explore it genetic characteristics. However, little is known about PVY codon usage. To shed light on the relation of codon usage among viruses and their hosts is extremely important to understand virus survival, fitness and evolution. In this study, we performed a comprehensive analysis of codon usage and composition of PVY non-recombinant strains (PVYN-NA, PVYEu-N, PVYO, PVYO5, PVYC) based on 130 complete open reading frame sequences extracted from public databases. Furthermore, similarities between the synonymous codon usage of PVY and its main hosts were investigated. The results obtained in the current study suggest that the overall codon usage among PVY genotypes is similar and slightly biased. PVY codon usage is strongly influenced by mutational bias, but also by G + C compositional constraint and dinucleotide composition. Furthermore, similarities among codon usage preferences between PVY strains and analyzed hosts were observed.
journal_name
Virus Resjournal_title
Virus researchauthors
Gómez MM,de Mello Volotão E,Assandri IR,Peyrou M,Cristina Jdoi
10.1016/j.virusres.2020.198077subject
Has Abstractpub_date
2020-09-01 00:00:00pages
198077eissn
0168-1702issn
1872-7492pii
S0168-1702(19)30902-5journal_volume
286pub_type
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