Publications des scientifiques de l'IRD

Lehrter V., Banuls Anne-Laure, Leger N., Rioux J. A., Depaquit J. (2017). Phlebotomus (Paraphlebotomus) chabaudi and Phlebotomus riouxi : closely related species or synonyms ?. Parasite, 24, p. art. 47 [15 p. ]. ISSN 1252-607X.

Titre du document
Phlebotomus (Paraphlebotomus) chabaudi and Phlebotomus riouxi : closely related species or synonyms ?
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000416861000001
Auteurs
Lehrter V., Banuls Anne-Laure, Leger N., Rioux J. A., Depaquit J.
Source
Parasite, 2017, 24, p. art. 47 [15 p. ] ISSN 1252-607X
Phlebotomus riouxi Depaquit, Killick-Kendrick & Leger 1998 was described as a species closely related to Phlebotomus chabaudi Croset, Abonnenc & Rioux 1970, differing mainly by the size and number of setae of the coxite basal lobe. Molecular studies carried out on several populations from Algeria and Tunisia and based on mitochondrial genes cytochrome b (Cytb) and cytochrome oxidase I (COI) supported the typological validity of these two species. Recently, specimens from a single population in southern Tunisia were morphologically identified as Ph. riouxi, Ph. chabaudi and intermediates, but were clustered in the same clade according to their Cytb and nuclear gene elongation factor-1 alpha (EF-1 alpha) sequences. These species were thus synonymized. To further explore this synonymy, we carried out a molecular study on specimens from Algeria and Tunisia using the same molecular markers and a part of 28S rDNA. We did not find any morphologically intermediate specimens in our sampling. Wehighlighted differences between the genetic divergence rates within and between the two species for the three markers and we identified new haplotypes. The sequence analysis did not reveal any signature of introgression in allopatric nor in sympatric populations such as in the Ghomrassen population. Phylogenetic analyses based on our specimens revealed that the two main clades are Ph. chabaudi and Ph. riouxi, in agreement with the morphological identification. These results support the validity of Ph. riouxi and Ph. chabaudi as typological species.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052]
Description Géographique
ALGERIE ; TUNISIE
Localisation
Fonds IRD [F B010071420]
Identifiant IRD
fdi:010071420
Contact