Evaluating the essentiality of the primary endosymbiont of the rice weevil Sitophilus oryzae through genome analysis - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
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Evaluating the essentiality of the primary endosymbiont of the rice weevil Sitophilus oryzae through genome analysis

Carlos Vargas-Chavez
  • Function : Author
Nicolas Parisot
Biologie Fonctionnelle, Insectes et Interactions
CV
C. Goubert
  • Function : Author
Eléments transposables, évolution, populations
Patrice Baa-Puyoulet
Biologie Fonctionnelle, Insectes et Interactions
CV
Severine Balmand
Biologie Fonctionnelle, Insectes et Interactions
M. Boulesteix
Eléments transposables, évolution, populations
Nelly Burlet
Eléments transposables, évolution, populations
Patrick Callaerts
  • Function : Author
  • PersonId : 899223
Catholic University of Leuven - Katholieke Universiteit Leuven
Hubert Charles
Biologie Fonctionnelle, Insectes et Interactions
CV
Stefano Colella
Laboratoire des symbioses tropicales et méditerranéennes
Gérard Febvay
  • Function : Author
Unité de recherche Productions végétales
Toni Gabaldon
  • Function : Author
  • PersonId : 1023762
Barcelona Supercomputing Center - Centro Nacional de Supercomputacion
Emmanuelle Jacquin-Joly
Institut d'écologie et des sciences de l'environnement de Paris
Damian Loska
  • Function : Author
Barcelona Institute of Science and Technology
Justin Maire
  • Function : Author
  • PersonId : 1017614
Biologie Fonctionnelle, Insectes et Interactions
Florent Masson
Biologie Fonctionnelle, Insectes et Interactions
Camille Meslin
Department of Computational and Systems Biology
N Montagné
  • Function : Author
Andres Moya
  • Function : Author
Institut Cavanilles de Biodiversitat i Biologia Evolutiva
Carole Vincent-Monégat
Biologie Fonctionnelle, Insectes et Interactions
Rita Rebollo
Biologie Fonctionnelle, Insectes et Interactions
CV
Agnès Vallier
Biologie Fonctionnelle, Insectes et Interactions
Aurélien Vigneron
  • Function : Author
Biologie Fonctionnelle, Insectes et Interactions
A. Zaidman-Rémy
Biologie Fonctionnelle, Insectes et Interactions
Federica Calevro
Biologie Fonctionnelle, Insectes et Interactions
CV
Cristina Vieira
Eléments transposables, évolution, populations
CV
Amparo Latorre
  • Function : Author
  • PersonId : 1103233
Abdelaziz Heddi
  • Function : Author
  • PersonId : 748780
  • IdHAL : aziz-heddi
Biologie Fonctionnelle, Insectes et Interactions

Abstract

The rice weevil Sitophilus oryzae is a pest insect responsible for great economic losses to the agriculture, particularly in developing countries where the damage can exceed 40% of the cereal production. This pest harbors an endosymbiont, “Candidatus Sodalis pierantonius” (cited Sodalis hereafter) that improves its fitness and invasive power. It has been demonstrated that Sodalis recently replaced the ancestral endosymbiont “Candidatus Nardonella” (cited Nardonella hereafter), which is still conserved in other members of the Dryophthoridae family. This recent acquisition raises several challenges for the host, given that the genome of Sodalis has not experienced a drastic genome size shrinkage when compared to other old-lasting insect’s endosymbionts. While the genomes of Sodalis and several strains of Nardonella are available, the insect’s genome is still needed to perform a full study of the system. To this end, we have sequenced and assembled the full genome of the weevil S. oryzae using a combination of Next Generation Sequencing data. Additionally, we have compared this genome with other available insect genomes. We found that the genome of S. oryzae encodes immune elements similar to those of other holometabolous insects, including those living without endosymbionts. Remarkably, an impressive amount of repeated elements was identified, similar to what was previously described in the Sodalis endosymbiont, suggesting the occurrence of gene rearrangement processes at this early phase of symbiogenesis. We concluded that while Sodalis is completely dependent on its host, the insect can survive without its endosymbiont.

Domains

Quantitative Methods [q-bio.QM]

Hubert Charles  : Connect in order to contact the contributor

https://hal.inrae.fr/hal-03514015

Submitted on : Thursday, January 6, 2022-10:05:42 AM

Last modification on : Wednesday, May 10, 2023-3:50:30 AM

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Dates and versions

hal-03514015 , version 1 (06-01-2022)

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  • HAL Id : hal-03514015 , version 1

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Carlos Vargas-Chavez, Nicolas Parisot, C. Goubert, Patrice Baa-Puyoulet, Severine Balmand, et al.. Evaluating the essentiality of the primary endosymbiont of the rice weevil Sitophilus oryzae through genome analysis. VI Meeting of the Spanish Society for Evolutionary Biology (SESBE), Jan 2018, Palma de Mallorca, Spain. ⟨hal-03514015⟩

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