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Lei J, Lü W, Wang W, Wang H, Guo X, Cheng P, Gong M, Liu L. [Comparison of the microbiota diversity between autogenous and anautogenous Culex pipiens pallens]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2024; 36:52-58. [PMID: 38604685 DOI: 10.16250/j.32.1374.2023204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
OBJECTIVE To investigate the microbiota composition and diversity between autogenous and anautogenous Culex pipiens pallens, so as to provide insights into unraveling the pathogenesis of autogeny in Cx. pipiens pallens. METHODS Autogenous and anautogenous adult Cx. pipiens pallens samples were collected at 25 ℃, and the hypervariable regions of the microbial 16S ribosomal RNA (16S rRNA) gene was sequenced on the Illumina NovaSeq 6000 sequencing platform. The microbiota abundance and diversity were evaluated using the alpha diversity index, and the difference in the microbiota structure was examined using the beta diversity index. The microbiota with significant differences in the abundance between autogenous and anautogenous adult Cx. pipiens pallens samples was identified using the linear discriminant analysis effect size (LEfSe). RESULTS The microbiota in autogenous and anautogenous Cx. pipiens pallens samples belonged to 18 phyla, 28 classes, 70 orders, 113 families, and 170 genera, and the dominant phyla included Proteobacteria, Bacteroidetes, and so on. At the genus level, Wolbachia was a common dominant genus, and the relative abundance was (77.6 ± 11.3)% in autogenous Cx. pipiens pallens samples and (47.5 ± 8.5)% in anautogenous mosquito samples, while Faecalibaculum (0.4% ± 0.1%), Dubosiella (0.5% ± 0.0%) and Massilia (0.5% ± 0.1%) were specific species in autogenous Cx. pipiens pallens samples. Alpha diversity analysis showed that higher Chao1 index and ACE index in autogenous Cx. pipiens pallens samples than in anautogenous samples (both P values > 0.05), and lower Shannon index (P > 0.05) and Simpson index (P < 0.05) in autogenous Cx. pipiens pallens samples than in anautogenous samples. LEfSe analysis showed a total of 48 significantly different taxa between autogenous and anautogenous Cx. pipiens pallens samples (all P values < 0.05). CONCLUSIONS There is a significant difference in the microbiota diversity between autogenous and anautogenous Cx. pipiens pallens.
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Affiliation(s)
- J Lei
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - W Lü
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - W Wang
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - H Wang
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - X Guo
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - P Cheng
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - M Gong
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - L Liu
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
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Arich S, Haba Y, Assaid N, Fritz ML, McBride CS, Weill M, Taki H, Sarih M, Labbé P. No association between habitat, autogeny and genetics in Moroccan Culex pipiens populations. Parasit Vectors 2022; 15:405. [PMID: 36329500 PMCID: PMC9635193 DOI: 10.1186/s13071-022-05469-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/29/2022] [Indexed: 11/06/2022] Open
Abstract
Background Mosquitoes of the Culex pipiens complex are found across the globe and are the focus of many research studies. Among the temperate species C. pipiens sensu stricto (s.s.), two forms are usually described: molestus and pipiens. These two forms are indistinguishable in terms of morphology but show behavioral and physiological differences that may have consequences for their associated epidemiology. The two forms are well defined in the northern part of the species distribution, where autogeny is strictly associated with the molestus form. However, whether the two remain distinct and show the characteristic differences in behavior is less clear in North Africa, at the southern edge of their range. Methods The association between autogeny, as determined by ovarian dissection, and molecular forms, based on the CQ11 microsatellite marker, was studied in six Moroccan populations of C. pipiens. Results An overall low prevalence of autogeny was found at three of the Moroccan regions studied, although it reached 17.5% in the Agadir population. The prevalence of form-specific CQ11 alleles was quite similar across all populations, with the molestus allele being rarer (approx. 15%), except in the Agadir population where it reached 43.3%. We found significant deficits in heterozygotes at the diagnostic CQ11 locus in three populations, but the three other populations showed no significant departure from panmixia, which is in line with the results of a retrospective analysis of the published data. More importantly, we found no association between the autogeny status and CQ11 genotypes, despite the many females analyzed. Conclusions There was limited evidence for two discrete forms in Morocco, where individuals carrying pipiens and molestus alleles breed and mate in the same sites and are equally likely to be capable of autogeny. These observations are discussed in the epidemiological context of Morocco, where C. pipiens is the main vector of several arboviruses. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05469-3.
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Affiliation(s)
- Soukaina Arich
- Institut Des Sciences de L'Évolution de Montpellier, UMR 5554, CNRS-UM-IRD-EPHE, Université de Montpellier, Montpellier, Cedex 5, France.,Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, URAC34, Hassan II University of Casablanca, Casablanca, Morocco.,Laboratoire Des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Yuki Haba
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Najlaa Assaid
- Laboratoire Des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Megan L Fritz
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - Carolyn S McBride
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA.,Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA
| | - Mylène Weill
- Institut Des Sciences de L'Évolution de Montpellier, UMR 5554, CNRS-UM-IRD-EPHE, Université de Montpellier, Montpellier, Cedex 5, France
| | - Hassan Taki
- Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, URAC34, Hassan II University of Casablanca, Casablanca, Morocco
| | - M'hammed Sarih
- Laboratoire Des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Pierrick Labbé
- Institut Des Sciences de L'Évolution de Montpellier, UMR 5554, CNRS-UM-IRD-EPHE, Université de Montpellier, Montpellier, Cedex 5, France. .,Institut Universitaire de France, 1 rue Descartes, 75231 Cedex 05, Paris, France.
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Martinson EO, Chen K, Valzania L, Brown MR, Strand MR. Insulin-like peptide 3 stimulates hemocytes to proliferate in anautogenous and facultatively autogenous mosquitoes. J Exp Biol 2022; 225:274275. [PMID: 35129195 PMCID: PMC8976944 DOI: 10.1242/jeb.243460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/31/2022] [Indexed: 11/20/2022]
Abstract
Most mosquito species are anautogenous, which means they must blood feed on a vertebrate host to produce eggs, while a few are autogenous and can produce eggs without blood feeding. Egg formation is best understood in the anautogenous mosquito Aedes aegypti, where insulin-like peptides (ILPs), ovary ecdysteroidogenic hormone (OEH) and 20-hydroxyecdysone (20E) interact to regulate gonadotrophic cycles. Circulating hemocytes also approximately double in abundance in conjunction with a gonadotrophic cycle, but the factors responsible for stimulating this increase remain unclear. Focusing on Ae. aegypti, we determined that hemocyte abundance similarly increased in intact blood-fed females and decapitated blood-fed females that were injected with ILP3, whereas OEH, 20E or heat-killed bacteria had no stimulatory activity. ILP3 upregulated insulin-insulin growth factor signaling in hemocytes, but few genes - including almost no transcripts for immune factors - were differentially expressed. ILP3 also stimulated circulating hemocytes to increase in two other anautogenous (Anopheles gambiae and Culex quinquefasciatus) and two facultatively autogenous mosquitoes (Aedes atropalpus and Culex pipiens molestus), but had no stimulatory activity in the obligately autogenous mosquito Toxorhynchites amboinensis. Altogether, our results identify ILPs as the primary regulators of hemocyte proliferation in association with egg formation, but also suggest this response has been lost in the evolution of obligate autogeny.
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Affiliation(s)
- Ellen O Martinson
- Department of Entomology, University of Georgia, Athens, GA 30602, USA
| | - Kangkang Chen
- Department of Entomology, University of Georgia, Athens, GA 30602, USA
| | - Luca Valzania
- Department of Entomology, University of Georgia, Athens, GA 30602, USA
| | - Mark R Brown
- Department of Entomology, University of Georgia, Athens, GA 30602, USA
| | - Michael R Strand
- Department of Entomology, University of Georgia, Athens, GA 30602, USA
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Lobbia PA, Remón C, Mougabure-Cueto G. Autogenic capacity in Triatoma infestans (Klug, 1834) (Hemiptera: Reduviidae) susceptible and resistant to deltamethrin. Parasitol Res 2021; 120:2263-8. [PMID: 33835244 DOI: 10.1007/s00436-021-07146-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/30/2021] [Indexed: 10/21/2022]
Abstract
The insecticide resistance in Triatoma infestans (Klug, 1834) was detected in different areas of its geographical distribution. The mechanisms of resistance involved can affect different biological processes in addition to toxicological ones. Previous studies showed that reproductive efficiency was modified in resistant females compared to susceptible ones. The objective of this study was to compare the autogenic capacity and subsequent reproductive potential between deltamethrin-resistant and susceptible T. infestans. For each toxicological phenotype, pairs were formed between unfed adult females and recently fed adult male, which were separated after confirming copulation. Females were observed weekly until death, and reproductive parameters (initiation of mating, initiation of oviposition, fecundity, fertility and period between mating and initiation of oviposition) were recorded. Females from both toxicological phenotypes showed autogenic capacity. However, a lower proportion of deltamethrin-resistant unfed females laid eggs. Autogenic females showed a higher nutritional status than non-autogenic ones. No other differences in reproductive parameters were found between resistant and susceptible autogenic females. The possible mechanisms underlying the differences observed and their consequences on the spread of resistance are discussed. This is the first report describing the effect of pyrethroid resistance on T. infestans autogeny.
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Khaligh FG, Naghian A, Soltanbeiglou S, Gholizadeh S. Autogeny in Culiseta longiareolata (Culicidae: Diptera) mosquitoes in laboratory conditions in Iran. BMC Res Notes 2020; 13:81. [PMID: 32075679 PMCID: PMC7031961 DOI: 10.1186/s13104-020-04942-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 02/07/2020] [Indexed: 11/24/2022] Open
Abstract
Objectives Culiseta longiareolata is a cosmopolitan species and has implicated in the transmission of avian malaria, tularemia, and arboviruses. Despite the wide distribution of Cs. longiareolata in Iran, little is known about its biology and physiology. The current research was conducted to study the autogeny behavior in this potential vector. During 2018, larvae and pupae were collected from Nazloo region in Urmia City using standard methods. Mosquitoes were reared in cages and fed by 5% sugar in laboratory conditions and were then dissected in phosphate-buffered saline (PBS) under a stereo microscope. Results In total, 230 adult female Cs. longiareolata mosquitoes were dissected. Egg rafts were observed in the ovary of only 10.86% unfed female mosquitoes. Autogeny behavior is a significant factor in the growth of population without a blood feeding. Therefore, it is necessary to study how autogenous reproduction affects mosquito-borne diseases.
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Affiliation(s)
- Fereshteh Ghahvechi Khaligh
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran.,Medical Entomology Department, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
| | - Abdollah Naghian
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran.,Medical Entomology Department, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
| | - Shadiyeh Soltanbeiglou
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran.,Medical Entomology Department, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
| | - Saber Gholizadeh
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran. .,Medical Entomology Department, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran.
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Beji M, Rhim A, Roiz D, Bouattour A. Ecophysiological characterization and molecular differentiation of Culex pipiens forms (Diptera: Culicidae) in Tunisia. Parasit Vectors 2017; 10:327. [PMID: 28693560 PMCID: PMC5504560 DOI: 10.1186/s13071-017-2265-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 06/27/2017] [Indexed: 12/16/2022] Open
Abstract
Background The Culex pipiens complex (Diptera: Culicidae) includes the most widespread mosquito species in the world. Members of this complex are the primary enzootic and epidemic vectors of the West Nile virus (genus Flavivirus) in several countries. The two recognized forms of Cx. pipiens (Linnaeus, 1758) - pipiens and molestus- exhibit behavioral and physiological differences. Natural populations of Cx. pipiens were investigated in several sites in Tunisia to evaluate the ecophysiological and molecular characteristics of their forms. Results The analysis showed the sympatric presence of Cx. pipiens forms and hybrids in all studied sites. Of all the tested larvae of Cx. pipiens, 33.5% were identified as pipiens, 30.8% were identified as molestus, and 35.6% were identified as hybrids. The molestus and hybrid forms were positively correlated with urban habitats and belowground sites while the pipiens form was positively correlated with rural habitats and aboveground sites. Autogeny was expressed in all types of habitats and breeding sites. By contrast with the microsatellite CQ11, the two molecular markers, ace-2 and cytb, did not allow differentiation between the Cx. pipiens forms. Conclusions Our study shows the ubiquitous distribution and the plasticity of the different forms of Cx. pipiens in a wide range of ecological conditions. It suggests that the behavioral traits assigned to the forms of Cx. pipiens seem to be more flexible than previously assumed. Our analysis also proves that the microsatellite CQ11 remains an efficient tool for distinguishing between Cx. pipiens forms. Electronic supplementary material The online version of this article (doi:10.1186/s13071-017-2265-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marwa Beji
- Université Tunis El Manar, Institut Pasteur de Tunis, Laboratoire d'Epidémiologie et de Microbiologie Vétérinaire LR11IPT03, Service d'Entomologie Médicale, 1002, Tunis-Belvédère, Tunisia
| | - Adel Rhim
- Université Tunis El Manar, Institut Pasteur de Tunis, Laboratoire d'Epidémiologie et de Microbiologie Vétérinaire LR11IPT03, Service d'Entomologie Médicale, 1002, Tunis-Belvédère, Tunisia
| | - David Roiz
- Infectious Diseases and Vectors: Ecology, Genetics, Evolution and Control, IRD (Institut de Recherche pour le Développement), Montpellier, France
| | - Ali Bouattour
- Université Tunis El Manar, Institut Pasteur de Tunis, Laboratoire d'Epidémiologie et de Microbiologie Vétérinaire LR11IPT03, Service d'Entomologie Médicale, 1002, Tunis-Belvédère, Tunisia.
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Amara Korba R, Alayat MS, Bouiba L, Boudrissa A, Bouslama Z, Boukraa S, Francis F, Failloux AB, Boubidi SC. Ecological differentiation of members of the Culex pipiens complex, potential vectors of West Nile virus and Rift Valley fever virus in Algeria. Parasit Vectors 2016; 9:455. [PMID: 27534938 PMCID: PMC4989528 DOI: 10.1186/s13071-016-1725-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 07/25/2016] [Indexed: 12/24/2022] Open
Abstract
Background We investigated the ecological differentiation of two members of the Culex pipiens complex, Cx. p. pipiens form pipiens and Cx. p. pipiens form molestus in three sites, El-Kala, M'Sila and Tinerkouk in Algeria. These two forms are the most widespread mosquito vectors in temperate regions exhibiting important behavioural and physiological differences. Nevertheless, this group of potential vectors has been poorly studied, particularly in North Africa. Methods Ten larval populations of Cx. p. pipiens were sampled from various above- and underground habitats in three zones representing the three bioclimatic regions in Algeria. The reproduction characteristics were also investigated in the laboratory to define the rates of autogeny and stenogamy. Identification of Cx. p. pipiens members present in Algeria was achieved using a molecular analysis with the microsatellite CQ11 locus. Results We detected larvae of Cx. p. pipiens in all areas suggesting that the species is a ubiquitous mosquito well adapted to various environments. To our knowledge, this study provides the first molecular evidence of the presence of the Cx. p. pipiens form molestus and hybrids (molestus/pipiens) in Algeria with a high proportion of molestus form (48.3 %) in comparison with hybrids (36.8 %) and pipiens form (14.9 %). Conclusions Some unexpected correlations between the proportion of forms pipiens, molestus and hybrids, and mosquito biological characteristics were observed suggesting some epigenetic effects controlling Cx. p. pipiens mating and reproduction. Consequences for pathogen transmission are discussed. Electronic supplementary material The online version of this article (doi:10.1186/s13071-016-1725-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Raouf Amara Korba
- Laboratoire Ecologie des Systèmes Terrestres et Aquatiques, Département de Biologie, Faculté des Sciences, Université Badji Mokhtar, Annaba, Algérie. .,Institut Pasteur d'Alger, Unité d'Entomologie Médicale, Service d'Eco-épidémiologie parasitaire et génétique des populations, Alger, Algérie.
| | - Moufida Saoucen Alayat
- Laboratoire de Biologie Animale Appliquée, Faculté des Sciences, Département de Biologie, Université Badji Mokhtar, Annaba, Algérie
| | - Lazhari Bouiba
- Institut Pasteur d'Alger, Unité d'Entomologie Médicale, Service d'Eco-épidémiologie parasitaire et génétique des populations, Alger, Algérie
| | - Abdelkarim Boudrissa
- Institut Pasteur d'Alger, Unité d'Entomologie Médicale, Service d'Eco-épidémiologie parasitaire et génétique des populations, Alger, Algérie
| | - Zihad Bouslama
- Laboratoire Ecologie des Systèmes Terrestres et Aquatiques, Département de Biologie, Faculté des Sciences, Université Badji Mokhtar, Annaba, Algérie
| | - Slimane Boukraa
- Unit of Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés 2, 5030, Gembloux, Belgium
| | - Frederic Francis
- Unit of Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés 2, 5030, Gembloux, Belgium
| | - Anna-Bella Failloux
- Institut Pasteur, Department of Virology, Arboviruses and Insect Vectors, Paris, France
| | - Saïd Chaouki Boubidi
- Institut Pasteur d'Alger, Unité d'Entomologie Médicale, Service d'Eco-épidémiologie parasitaire et génétique des populations, Alger, Algérie
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Gulia-Nuss M, Elliot A, Brown MR, Strand MR. Multiple factors contribute to anautogenous reproduction by the mosquito Aedes aegypti. J Insect Physiol 2015; 82:8-16. [PMID: 26255841 PMCID: PMC4630150 DOI: 10.1016/j.jinsphys.2015.08.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 08/04/2015] [Accepted: 08/05/2015] [Indexed: 05/11/2023]
Abstract
Aedes aegypti is an anautogenous mosquito that must blood feed on a vertebrate host to produce and lay a clutch of eggs. The rockpool mosquito, Georgecraigius atropalpus, is related to A. aegypti but is a facultatively autogenous species that produces its first clutch of eggs shortly after emerging without blood feeding. Consumption of a blood meal by A. aegypti triggers the release of ovary ecdysteroidogenic hormone (OEH) and insulin-like peptide 3 (ILP3) from the brain, which stimulate egg formation. OEH and ILP3 also stimulate egg formation in G. atropalpus but are released at eclosion independently of blood feeding. These results collectively suggest that blood meal dependent release of OEH and ILP3 is one factor that prevents A. aegypti from reproducing autogenously. Here, we examined two other factors that potentially inhibit autogeny in A. aegypti: teneral nutrient reserves and the ability of OEH and ILP3 to stimulate egg formation in the absence of blood feeding. Measures of nutrient reserves showed that newly emerged A. aegypti females had similar wet weights but significantly lower protein and glycogen reserves than G. atropalpus females when larvae were reared under identical conditions. OEH stimulated non-blood fed A. aegypti females to produce ecdysteroid hormone and package yolk into oocytes more strongly than ILP3. OEH also reduced host seeking and blood feeding behavior, yet females produced few mature eggs. Overall, our results indicate that multiple factors prevent A. aegypti from reproducing autogenously.
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Affiliation(s)
- Monika Gulia-Nuss
- Department of Entomology, University of Georgia, Athens, GA 30602, USA
| | - Anne Elliot
- Department of Entomology, University of Georgia, Athens, GA 30602, USA
| | - Mark R Brown
- Department of Entomology, University of Georgia, Athens, GA 30602, USA.
| | - Michael R Strand
- Department of Entomology, University of Georgia, Athens, GA 30602, USA.
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