Identification of sympatric cryptic species of Aedes albopictus subgroup in Vietnam : new perspectives in phylosymbiosis of insect vector

  • Background: The Aedes (Stegomyia) albopictus subgroup includes 11 cryptic species of which Ae. albopictus is the most widely distributed. Its global expansion associated with a documented vector competence for several emerging arboviruses raise obvious concerns in the recently colonized regions. While several studies have provided important insights regarding medical importance of Ae. albopicus, the investigations of the other sibling species are scarce. In Asia, indigenous populations within the Ae. albopictus subgroup can be found in sympatry. In the present study, we aimed to describe and compare molecular, morphological and bacterial symbionts composition among sympatric individuals from the Ae. albopictus subgroup inhabiting a Vietnamese protected area. Results: Based on morphological structure of the cibarial armarture, we identified a cryptic species in the forest park at Bù Gia Mập in the south-eastern region of Vietnam. Analysis of nuclear (ITS1-5.8S-ITS2) and mitochondrial (cox1, nad5) markers confirmed the divergence between the cryptic species and Ae. albopictus. Analysis of midgut bacterial microbiota revealed a strong similarity among the two species with a notable difference; contrary to Ae. albopictus, the cryptic species did not harbour any Wolbachia infection. Conclusions: These results could reflect either a recent invasion of Wolbachia in Ae. albopictus or alternatively a loss of this symbiont in the cryptic species. We argue that neglected species of the Ae. albopictus subgroup are of main importance in order to estimate variation of host-symbionts interactions across evolution.
Metadaten
Author:Guillaume Minard, Van Tran Van, Florence Hélène Tran, Christian Melaun, Sven KlimpelORCiDGND, Lisa Katharina Koch, Khanh Ly Huynh Kim, Trang Huynh Thi Thuy, Huu Tran Ngoc, Patrick Potier, Patrick Mavingui, Claire Valiente Moro
URN:urn:nbn:de:hebis:30:3-445031
DOI:https://doi.org/10.1186/s13071-017-2202-9
ISSN:1756-3305
Pubmed Id:https://pubmed.ncbi.nlm.nih.gov/28577575
Parent Title (English):Parasites & vectors
Publisher:BioMed Central
Place of publication:London
Document Type:Article
Language:English
Year of Completion:2017
Date of first Publication:2017/06/02
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2018/01/09
Tag:Asian tiger mosquito; Dysgonomonas; Microbiota; Sibling species; Wolbachia
Volume:10
Issue:1, Art. 276
Page Number:14
First Page:1
Last Page:14
Note:
© The Author(s). 2017 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
HeBIS-PPN:426738667
Institutes:Angeschlossene und kooperierende Institutionen / Senckenbergische Naturforschende Gesellschaft
Biowissenschaften / Institut für Ökologie, Evolution und Diversität
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 59 Tiere (Zoologie) / 590 Tiere (Zoologie)
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0