|
Depot Institutionnel de l'UMBB >
Publications Scientifiques >
Publications Internationales >
Veuillez utiliser cette adresse pour citer ce document :
http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/10112
|
Titre: | Phylogenetic relationship between the endosymbiont “Candidatus Riesia pediculicola” and its human louse host |
Auteur(s): | Hammoud, Alissa Louni, Meriem Missé, Dorothée Cortaredona, Sébastien Fenollar, Florence Mediannikov, Oleg |
Mots-clés: | Candidatus Riesia pediculicola Co-evolution Housekeeping genes Human lice Mitochondrial genes Phylogenetic analysis |
Date de publication: | 2022 |
Editeur: | BioMed Central |
Collection/Numéro: | Parasites and Vectors/ Vol.15, N°1 (2022);pp. 1-9 |
Résumé: | Background: The human louse (Pediculus humanus) is a haematophagous ectoparasite that is intimately related to
its host. It has been of great public health concern throughout human history. This louse has been classified into six
divergent mitochondrial clades (A, D, B, F, C and E). As with all haematophagous lice, P. humanus directly depends on
the presence of a bacterial symbiont, known as “Candidatus Riesia pediculicola”, to complement their unbalanced
diet. In this study, we evaluated the codivergence of human lice around the world and their endosymbiotic bacteria.
Using molecular approaches, we targeted lice mitochondrial genes from the six diverged clades and Candidatus Riesia
pediculicola housekeeping genes.
Methods: The mitochondrial cytochrome b gene (cytb) of lice was selected for molecular analysis, with the aim to
identify louse clade. In parallel, we developed four PCR primer pairs targeting three housekeeping genes of Candida-
tus Riesia pediculicola: ftsZ, groEL and two regions of the rpoB gene (rpoB-1 and rpoB-2).
Results: The endosymbiont phylogeny perfectly mirrored the host insect phylogeny using the ftsZ and rpoB-2 genes,
in addition to showing a significant co-phylogenetic congruence, suggesting a strict vertical transmission and a host–
symbiont co-speciation following the evolutionary course of the human louse.
Conclusion: Our results unequivocally indicate that louse endosymbionts have experienced a similar co-evolution-
ary history and that the human louse clade can be determined by their endosymbiotic bacteria |
URI/URL: | https://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-022-05203-z https://doi.org/10.1186/s13071-022-05203-z http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/10112 |
ISSN: | 17563305 |
Collection(s) : | Publications Internationales
|
Fichier(s) constituant ce document :
|
Tous les documents dans DSpace sont protégés par copyright, avec tous droits réservés.
|