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Searched keyword : Aedes aegypti (Yellow fever mosquito)

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Related projects (13)

Assessing the integrations of viral sequences into the genomes of Aedes albopictus and Aedes aegypti

Aedes albopictus is an important vector for transmitting arboviruses, such as Dengue, Chikungunya, West Nile or Zika viruses. Its worldwide distribution due to its high ability to adapt to variable environments makes this species a serious threat. This mosquito also better transmits Chikungunya than Dengue virus, and many studies are still trying to understand the deep relationships between these viruses and their vectors in order to develop new control strategies. Moreover, it is now well known that retroviruses partially integrate into host's genomes since it is mandatory for their replication cycle. Interestingly, Retroviridae are not the only viral family capable of host integration. Indeed, in the last decade, owing to new molecular technologies such as next-generation sequencing and bioinformatic tools, non-retroviral integrated RNA virus sequences (NIRVS) have been found into many animal genomes, including Aedes mosquitoes. This came as a surprise since RNA viruses do not have DNA intermediate in their replication cycle. However, little is known about these integrations and many questions remained unsolved. The aim of this project is to assess the production of NIRVS in persistently-infected cells from Ae. albopictus and Ae. aegypti. It is divided in several critical points : the first one is to know how fast the virus can integrate into the cell genome. The second one is to determine which part of the viral genome can integrate and finally, where can it integrate in the genome. This will allow us to understand the virus/host interaction and if NIRVS formation is a mechanism that vectors/hosts evolved as a general response to RNA viruses.



Project status : Closed

Characterization of the bacterial and fungal microbiota in Aedes aegypti natural breeding sites and larvae



Project status : Awaiting Publication