Invasive mosquito species Aedes albopictus and Aedes aegypti on the Black Sea coast of the Caucasus: genetics (COI, ITS2), Wolbachia and Dirofilaria infections

Шайкевич, Е. В.; Patraman, Ivan; Bogacheva, Anna; Rakova, V M; Zelya, O. Р.; Ganushkina, L A

doi:10.18699/vj18.397

Cited by 7 publications

(6 citation statements)

References 37 publications

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“…It should be noted that COI marker lacks the resolution to discriminate Krasnodar krai Ae. albopictus populations, as only two haplotypes were found previously (Shaikevich et al, 2018). In agreement with that, no variations were found in the COI region in the current work.…”

Section: Tiger Mosquito Dispersal and Bottleneckssupporting

confidence: 93%

“…3_Sochi and 4_Krasnodar populations revealed a single unique mitochondrial haplotype each, while other samples revealed one major (present in 73-80% of the individuals according to PredictHaplo) and two to four less common haplotypes (Table 3). The COI region in all samples of the Sochi and Krasnodar mosquitoes was identical to the one previously found in this region (MG198595, Shaikevich et al, 2018). The haplotypes identified in the 1_Sochi, 2_Sochi and 5_Krasnodar samples formed a distinct clade.…”

Section: Phylogenetic Analysis and Haplotype Distributionsupporting

confidence: 74%

“…In a previous phylogenetic analysis of Ae. albopictus mosquitoes from the Black Sea region, no significant differentiation between local populations was found using COI and ITS2 data, probably because only samples from subtropical areas near Sochi were studied (Shaikevich et al, 2018). It should be noted that COI marker lacks the resolution to discriminate Krasnodar krai Ae.…”

Section: Tiger Mosquito Dispersal and Bottlenecksmentioning

confidence: 94%

“…In a previous phylogenetic analysis of Ae. albopictus mosquitoes from the Black Sea region, no significant difference between local populations was found based on COI and ITS2 data, probably because only samples from the subtropical areas in the vicinity of Sochi were used (Shaikevich et al, 2018). Whole-genome analyses showed that differences between local populations, found within a limited area (city outskirts), can be as high as between samples collected in the coastal and continental areas.…”

Section: Introductionmentioning

confidence: 91%

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The effects of genetic drift and genomic selection on differentiation and local adaptation of the introduced populations of Aedes albopictus in southern Russia

Коноров

Yurchenko

Patraman

et al. 2021

PeerJ

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Background Asian tiger mosquito Aedes albopictus is an arbovirus vector that has spread from its native habitation areal in Southeast Asia throughout North and South Americas, Europe, and Africa. Ae. albopictus was first detected in the Southern Federal District of the Russian Federation in the subtropical town of Sochi in 2011. In subsequent years, this species has been described in the continental areas with more severe climate and lower winter temperatures. Methods Genomic analysis of pooled Ae. albopictus samples collected in the mosquito populations in the coastal and continental regions of the Krasnodar Krai was conducted to look for the genetic changes associated with the spread and potential cold adaptation in Ae. albopictus. Results The results of the phylogenetic analysis based on mitochondrial genomes corresponded well with the hypothesis that Ae. albopictus haplotype A1a2a1 was introduced into the region from a single source. Population analysis revealed the role of dispersal and genetic drift in the local adaptation of the Asian tiger mosquito. The absence of shared haplotypes between the samples and high fixation indices suggest that gene flow between samples was heavily restricted. Mitochondrial and genomic differentiation together with different distances between dispersal routes, natural and anthropogenic barriers and local effective population size reduction could lead to difficulties in local climatic adaptations due to reduced selection effectiveness. We have found genomic regions with selective sweep patterns which can be considered as having been affected by recent selection events. The genes located in these regions participate in neural protection, lipid conservation, and cuticle formation during diapause. These processes were shown to be important for cold adaptation in the previous transcriptomic and proteomic studies. However, the population history and relatively low coverage obtained in the present article could have negatively affect sweep detection.

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Section: Tiger Mosquito Dispersal and Bottleneckssupporting

confidence: 93%

Section: Phylogenetic Analysis and Haplotype Distributionsupporting

confidence: 74%

Section: Tiger Mosquito Dispersal and Bottlenecksmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 91%

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The effects of genetic drift and genomic selection on differentiation and local adaptation of the introduced populations of Aedes albopictus in southern Russia

Коноров

Yurchenko

Patraman

et al. 2021

PeerJ

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“…We can compare our results to the Wolbachia infection status of Ae. albopictus in the Indo-Pacific region determined in previous studies [11,14,22,23,[44][45][46][47][48][49][50][51][52][53][54][55][56] (Table S2). These studies and ours highlight that the wAlbA/wAlbB superinfection or wAlbB single infection are present in most natural Ae.…”

Section: Variation In Wolbachia Infections Across Populationsmentioning

confidence: 99%

Sex-specific distribution and classification ofWolbachiainfections and mitochondrial DNA haplogroups inAedes albopictusfrom the Indo-Pacific

Yang

Chung

Robinson

et al. 2022

Preprint

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The arbovirus vector Aedes albopictus (Asian tiger mosquito) is common throughout the Indo-Pacific region, where most global dengue transmission occurs. We analysed population genomic data and tested for cryptic species in 160 Ae. albopictus sampled from 16 locations across this region. We found no evidence of cryptic Ae. albopictus but found multiple intraspecific COI haplotypes partitioned into groups representing three Asian lineages: East Asia, Southeast Asia and Indonesia. Papua New Guinea (PNG), Vanuatu and Christmas Island shared recent coancestry, and Indonesia and Timor-Leste were likely invaded from East Asia. We used a machine learning trained on morphologically sexed samples to classify sexes using multiple genetic features and then characterized the w AlbA and w AlbB Wolbachia infections in 664 other samples. The w AlbA and w AlbB infections as detected by qPCR showed markedly different patterns in the sexes. For females, most populations had a very high double infection incidence, with 67% being the lowest value (from Timor-Leste). For males, the incidence of double infections ranged from 100% (PNG) to 0% (Vanuatu). Only 6 females were infected solely by the w AlbA infection, while rare uninfected mosquitoes were found in both sexes. The w AlbA and w AlbB densities varied significantly among populations. For mosquitoes from Torres Strait and Vietnam, the w AlbB density was similar in single-infected and superinfected ( w AlbA and w AlbB) mosquitoes. There was a positive association between w AlbA and w AlbB infection densities in superinfected Ae. albopictus . Our findings provide no evidence of cryptic species of Ae. albopictus in the region and suggest site-specific factors influencing the incidence of Wolbachia infections and their densities. We also demonstrate the usefulness of SNPs as sex-specific mosquito markers. The results provide baseline data for the exploitation of Wolbachia -induced cytoplasmic incompatibility (CI) in dengue control.

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Genome Variation of Endosymbiotic Wolbachia in Introduced Populations of Asian Tiger Mosquito Aedes albopictus from Krasnodar Krai

2022

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Invasive mosquito species Aedes albopictus and Aedes aegypti on the Black Sea coast of the Caucasus: genetics (COI, ITS2), Wolbachia and Dirofilaria infections

Cited by 7 publications

References 37 publications

The effects of genetic drift and genomic selection on differentiation and local adaptation of the introduced populations of Aedes albopictus in southern Russia

The effects of genetic drift and genomic selection on differentiation and local adaptation of the introduced populations of Aedes albopictus in southern Russia

Sex-specific distribution and classification ofWolbachiainfections and mitochondrial DNA haplogroups inAedes albopictusfrom the Indo-Pacific

Genome Variation of Endosymbiotic Wolbachia in Introduced Populations of Asian Tiger Mosquito Aedes albopictus from Krasnodar Krai

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