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Evolution of virus resistance in D. melanogaster: effects of the endosymbiont Wolbachia and polymorphisms in the gene pastrel in a selection experiment

Grant number: 15/08307-3
Support type:Scholarships abroad - Research
Effective date (Start): September 15, 2015
Effective date (End): December 14, 2015
Field of knowledge:Biological Sciences - Genetics - Animal Genetics
Principal researcher:Rodrigo Cogni
Grantee:Rodrigo Cogni
Host: Francis Michael Jiggins
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Research place: University of Cambridge, England  


An important question in evolutionary biology is to understand how the selection imposed by pathogens lead to genetic changes in the host, and how this response can be influenced by other ecological interactions, such as the presence of mutualist endosymbionts. The goal of this research abroad internship if to finish an already started evolution experiment that aims to test if the presence of the endosymbiont Wolbachia affects the evolutionary response caused by the selection imposed by a virus (DCV- Drosophila C virus) in Drosophila melanogaster populations. In the experiment, replicate populations that were genetically similar and differed only in the presence or absence of Wolbachia were infected with DCV for 10 generations. During the three months of the proposed internship the frequency of a polymorphism in the gene pastrel that is associated with DCV resistance and the level of resistance (survival time after infection and viral titer) in the different populations after selection will be measured. The internship will take place in the group of Prof. Frank Jiggins (Genetics department, Cambridge University, England). Additionally, this internship will be important to strengthen future collaborations between the Jiggins´ group and the research group that the proponent is establishing at USP. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ANDRÉ C. PIMENTEL; CAMILA S. BERALDO; RODRIGO COGNI. Host-shift as the cause of emerging infectious diseases: Experimental approaches using Drosophila-virus interactions. GENETICS AND MOLECULAR BIOLOGY, v. 44, n. 1, p. -, 2021.
PIMENTEL, ANDRE C.; BERALDO, CAMILA S.; COGNI, RODRIGO. Host-shift as the cause of emerging infectious diseases: Experimental approaches using Drosophila-virus interactions. GENETICS AND MOLECULAR BIOLOGY, v. 44, n. 1, 1 2021. Web of Science Citations: 0.
CAO, CHUAN; COGNI, RODRIGO; BARBIER, VINCENT; JIGGINS, FRANCIS M. Complex Coding and Regulatory Polymorphisms in a Restriction Factor Determine the Susceptibility of Drosophila to Viral Infection. Genetics, v. 206, n. 4, p. 2159-2173, AUG 2017. Web of Science Citations: 10.
COGNI, RODRIGO; CAO, CHUAN; DAY, JONATHAN P.; BRIDSON, CALUM; JIGGINS, FRANCIS M. The genetic architecture of resistance to virus infection in Drosophila. Molecular Ecology, v. 25, n. 20, p. 5228-5241, OCT 2016. Web of Science Citations: 11.

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