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Institution

Universidade Federal de Viçosa

EducationViçosa, Brazil
About: Universidade Federal de Viçosa is a education organization based out in Viçosa, Brazil. It is known for research contribution in the topics: Population & Biology. The organization has 16012 authors who have published 26711 publications receiving 353416 citations.


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Journal ArticleDOI
TL;DR: Revised species and strain demarcation guidelines are instituted and step-by-step guidelines to facilitate the classification of newly discovered curtovirus full genome sequences are provided and a set of defined criteria for naming new species and strains are provided.
Abstract: Members of the genus Curtovirus (family Geminiviridae) are important pathogens of many wild and cultivated plant species. Until recently, relatively few full curtovirus genomes have been characterised. However, with the 19 full genome sequences now available in public databases, we revisit the proposed curtovirus species and strain classification criteria. Using pairwise identities coupled with phylogenetic evidence, revised species and strain demarcation guidelines have been instituted. Specifically, we have established 77 % genome-wide pairwise identity as a species demarcation threshold and 94 % genome-wide pairwise identity as a strain demarcation threshold. Hence, whereas curtovirus sequences with >77 % genome-wide pairwise identity would be classified as belonging to the same species, those sharing >94 % identity would be classified as belonging to the same strain. We provide step-by-step guidelines to facilitate the classification of newly discovered curtovirus full genome sequences and a set of defined criteria for naming new species and strains. The revision yields three curtovirus species: Beet curly top virus (BCTV), Spinach severe surly top virus (SpSCTV) and Horseradish curly top virus (HrCTV).

71 citations

Journal ArticleDOI
TL;DR: The favorable effects with sub-lethal doses stimulating the predator development suggest the potential of the combined use of this insecticide and predatory species in integrated pest management programs.

71 citations

Journal ArticleDOI
TL;DR: In this article, the authors measured the properties of liquid egg products, such as density, heat capacity and thermal conductivity, by using a linear relationship both for temperature and water content.

71 citations

Journal ArticleDOI
TL;DR: A high-expression-secretion vector is engineered that directs proteins towards the extracellular medium in two Aspergillii host strains, and the effect of maltose-induced over-expression and protein secretion as well as time and pH-dependent protein stability in the medium are examined.

71 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202346
2022320
20212,074
20202,208
20191,941
20181,865