Diapause and quiescence: dormancy mechanisms that contribute to the geographical expansion of mosquitoes and their evolutionary success

Diniz, Diego Felipe Araujo; Albuquerque, Cleide Maria Ribeiro de; Oliva, Luciana Oliveira; Melo-Santos, Maria Alice Varjal de; Ayres, Constância Flávia Junqueira

doi:10.1186/s13071-017-2235-0

Cited by 149 publications

(143 citation statements)

References 133 publications

(184 reference statements)

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“…Genes represented in this cluster include several lipases (to name a few: LOC109417138, LOC109401099, LOC109430899, and LOC109430905), several fatty acid hydroxylases (to name a few: LOC109400137, LOC109432075, and LOC109397180), and some proteases (LOC109406257, LOC109411917, and LOC109402104) ( Supplemental Table S5). This is likely due to the expression of genes that correspond to specific metabolic events associated with diapause to enable cold tolerance (Diniz et al 2017). When an embryo hatches under favorable conditions it then enters the aquatic larval stage.…”

Section: Global Transcriptome Dynamicsmentioning

confidence: 99%

“…While diapause has been studied extensively for Ae. albopictus because of its importance to its survival in different environments (Urbanski et al 2010a(Urbanski et al , 2010bReynolds et al 2012;Diniz et al 2017), and the genome has been sequenced (Chen et al 2015), there is currently no developmental transcriptome available for Ae. albopictus.…”

Section: Introductionmentioning

confidence: 99%

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The Developmental Transcriptome ofAe. albopictus,a Major Worldwide Human Disease Vector

Gamez¹,

Antoshechkin

Méndez‐Sánchez

et al. 2019

Preprint

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Aedes albopictus mosquitoes are important vectors for a number of human pathogens including the Zika, dengue, and chikungunya viruses. Capable of displacing Aedes aegypti populations, it adapts to cooler environments which increases its geographical range and transmission potential. There are limited control strategies for Aedes albopictus mosquitoes which is likely attributed to the lack of comprehensive biological studies on this emerging vector. To fill this void, here using RNAseq we characterized Aedes albopictus mRNA expression profiles at 47 distinct time points throughout development providing the first high-resolution comprehensive view of the developmental transcriptome of this worldwide human disease vector. This enabled us to identify several patterns of shared gene expression among tissues as well as sex-specific expression patterns. Moreover, to illuminate the similarities and differences between Aedes aegypti, a related human disease vector, we performed a comparative analysis using the two developmental transcriptomes. We identify life stages were the two species exhibited significant differential expression among orthologs. These findings provide insights into the similarities and differences between Aedes albopictus and Aedes aegypti mosquito biology. In summary, the results generated from this study should form the basis for future investigations on the biology of Aedes albopictus mosquitoes and provide a goldmine resource for the development of transgene-based vector control strategies.

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Section: Global Transcriptome Dynamicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Developmental Transcriptome ofAe. albopictus,a Major Worldwide Human Disease Vector

Gamez¹,

Antoshechkin

Méndez‐Sánchez

et al. 2019

Preprint

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“…albopictus may reflect the greater impact of long-distance transportation in modern times, the capacity of Ae. albopictus to undergo diapause as well as quiescence [34] could also be involved, as mosquitoes must be able to survive long-distance transportation for gene flow to occur. A comparison of incursion pathways of Aedes spp.…”

Section: Discussionmentioning

confidence: 99%

“…albopictus may be able to survive transportation over longer distances than Ae. aegypti by undergoing diapause [32][33][34] which confers resistance to cold and desiccation [35]. Aedes aegypti does not undergo diapause, but like Ae.…”

Section: Introductionmentioning

confidence: 99%

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Population genomics of two invasive mosquitoes (Aedes aegyptiandAedes albopictus) from the Indo-Pacific

Schmidt

Chung

Honnen

et al. 2020

Preprint

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The arbovirus vectors Aedes aegypti (yellow fever mosquito) and Ae. albopictus (Asian tiger mosquito) are both common throughout the Indo-Pacific region, where 70% of global dengue transmission occurs. For Ae. aegypti all Indo-Pacific populations are invasive, having spread from an initial native range of Africa, while for Ae. albopictus the Indo-Pacific includes invasive populations and those from the native range: putatively, India to Japan to Southeast Asia. This study analyses the population genomics of 480 of these mosquitoes sampled from 27 locations in the Indo-Pacific. We compared patterns of genetic differentiation to investigate pathways of invasion and ongoing gene flow in both species, and to infer potential native-range boundaries and cryptic subspecies in Ae. albopictus. We also tested landscape genomic hypotheses that genetic differentiation would increase with geographical distance and be lower between locations with high connectivity to human transportation routes, the primary means of dispersal at these scales. We found that genetic distances were generally higher in Ae. aegypti, with Pacific populations the most highly differentiated. The most differentiated Ae. albopictus populations were in Vanuatu, Indonesia and Sri Lanka; the latter two may represent ancestral native-range populations or cryptic subspecies, respectively. Genetic distances in Ae. aegypti increased with geographical distance, while in Ae. albopictus they decreased with higher connectivity to human transportation routes. Contrary to in Ae. aegypti, we found evidence of long-distance Ae. albopictus colonisation events, including of Mauritius from East Asia and of Fiji from Southeast Asia. Our direct genomic comparisons indicate likely differences in dispersal ecology in these species, despite their phylogenetic proximity, broadly sympatric distributions and similar use of human transport to disperse. Our findings will assist biosecurity operations that aim to trace the source of invasive material and for biocontrol operations that benefit from matching genetic backgrounds of released and local populations. Fig 1. Sampling locations of Aedes aegypti and Aedes albopictus.White lines indicate density of shipping routes. The map uses a Mollweide projection with a central meridian of 120°E. The map was produced in ARCMAP 10.5.1 using shipping route data made available from Halpern et al. [36]. Sampling locations are indicated by letters and are described in Tables 1 and 2.

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Effect of salinity on the oviposition and growth of Ochlerotatus togoi

Choi,

Choi

2024

Ecology and Evolution

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Ochlerotatus togoi is a salt‐tolerant euryhaline mosquito that lays its eggs in rock pools. Although it is a pest that can transmit flaviviruses and filarial worms to humans, ecological studies have not been previously conducted because of its limited habitat. However, rising sea levels have created a more favorable environment for Oc. togoi, increasing the risk of Oc. togoi‐borne diseases. We examined the oviposition and growth rates of Oc. togoi at 0–35 psu to obtain ecological data. It exhibited the highest oviposition preference at 0 psu; however, the hatching rate was highest at 10 psu, the pupation rate was highest at 25 psu, and the emergence rate was highest at 5 psu. Oc. togoi showed the highest rate of growth into adults at 25 psu. The results were assessed using Mann–Whitney U and Kruskal–Wallis H tests (post hoc test: Bonferroni), and a regression equation was generated for the incidence of adult Oc. togoi based on the change in salinity (y = −14.318 + 9.821x; y = adult incidence rate; x = salinity). The oviposition habits and developmental conditions of Oc. togoi were confirmed, and the incidence of Oc. togoi based on changes in sea level and ocean salinity was predicted. The results of this study will be useful for controlling salt‐tolerant vectors and responding to vector‐borne diseases.

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Diapause and quiescence: dormancy mechanisms that contribute to the geographical expansion of mosquitoes and their evolutionary success

Cited by 149 publications

References 133 publications

The Developmental Transcriptome ofAe. albopictus,a Major Worldwide Human Disease Vector

The Developmental Transcriptome ofAe. albopictus,a Major Worldwide Human Disease Vector

Population genomics of two invasive mosquitoes (Aedes aegyptiandAedes albopictus) from the Indo-Pacific

Effect of salinity on the oviposition and growth of Ochlerotatus togoi

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