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Zimowska GJ, Xavier N, Qadri M, Handler AM. A transposon-based genetic marker for conspecific identity within the Bactrocera dorsalis species complex. Sci Rep 2024; 14:1924. [PMID: 38253542 PMCID: PMC10803768 DOI: 10.1038/s41598-023-51068-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Here we describe a molecular approach to assess conspecific identity that relies on the comparison of an evolved mutated transposable element sequence and its genomic insertion site in individuals from closely related species. This was explored with the IFP2 piggyBac transposon, originally discovered in Trichoplusia ni as a 2472 bp functional element, that was subsequently found as mutated elements in seven species within the Bactrocera dorsalis species complex. In a B. dorsalis [Hendel] strain collected in Kahuku, Hawaii, a degenerate 2420 bp piggyBac sequence (pBacBd-Kah) having ~ 94.5% sequence identity to IFP2 was isolated, and it was reasoned that common species, or strains within species, should share the same evolved element and its precise genomic insertion site. To test this assumption, PCR using primers to pBacBd-Kah and adjacent genomic sequences was used to isolate and compare homologous sequences in strains of four sibling species within the complex. Three of these taxa, B. papayae, B. philippinensis, and B. invadens, were previously synonymized with B. dorsalis, and found to share nearly identical pBacBd-Kah homologous elements (> 99% nucleotide identity) within the identical insertion site consistent with conspecific species. The fourth species tested, B. carambolae, considered to be a closely related yet independent species sympatric with B. dorsalis, also shared the pBacBd-Kah sequence and insertion site in one strain from Suriname, while another divergent pBacBd-Kah derivative, closer in identity to IFP2, was found in individuals from French Guiana, Bangladesh and Malaysia. This data, along with the absence of pBacBd-Kah in distantly related Bactrocera, indicates that mutated descendants of piggyBac, as well as other invasive mobile elements, could be reliable genomic markers for common species identity.
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Affiliation(s)
- Grazyna J Zimowska
- U.S. Department of Agriculture, Center for Medical, Agricultural, and Veterinary Entomology, Agricultural Research Service, 1700 SW 23rd Drive, Gainesville, FL, 32608, USA
- Entomology and Nematology Department, University of Florida, Gainesville, FL, 32611, USA
| | - Nirmala Xavier
- U.S. Department of Agriculture, Center for Medical, Agricultural, and Veterinary Entomology, Agricultural Research Service, 1700 SW 23rd Drive, Gainesville, FL, 32608, USA
- Entomology and Nematology Department, University of Florida, Gainesville, FL, 32611, USA
| | - Masroor Qadri
- U.S. Department of Agriculture, Center for Medical, Agricultural, and Veterinary Entomology, Agricultural Research Service, 1700 SW 23rd Drive, Gainesville, FL, 32608, USA
- Entomology and Nematology Department, University of Florida, Gainesville, FL, 32611, USA
| | - Alfred M Handler
- U.S. Department of Agriculture, Center for Medical, Agricultural, and Veterinary Entomology, Agricultural Research Service, 1700 SW 23rd Drive, Gainesville, FL, 32608, USA.
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Chen Y, Zhang Y, Ai S, Xing S, Zhong G, Yi X. Female semiochemicals stimulate male courtship but dampen female sexual receptivity. Proc Natl Acad Sci U S A 2023; 120:e2311166120. [PMID: 38011549 PMCID: PMC10710021 DOI: 10.1073/pnas.2311166120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/21/2023] [Indexed: 11/29/2023] Open
Abstract
Chemical communication plays a vital role in mate attraction and discrimination among many insect species. Here, we document a unique example of semiochemical parsimony, where four chemicals act as both aphrodisiacs and anti-aphrodisiacs in different contexts in Bactrocera dorsalis. Specifically, we identified four female-specific semiochemicals, ethyl laurate, ethyl myristate, ethyl cis-9-hexadecenoate, and ethyl palmitate, which serve as aphrodisiacs to attract male flies and arouse male courtship. Interestingly, these semiochemicals, when sexually transferred to males during mating, can function as anti-aphrodisiacs, inhibiting the receptivity of subsequent female mates. We further showed that the expression of elongase11, a key enzyme involved in the biosynthesis of these semiochemicals, is under the control of doublesex, facilitating the exclusive biosynthesis of these four semiochemicals in females and guaranteeing effective chemical communication. The dual roles of these semiochemicals not only ensure the attractiveness of mature females but also provide a simple yet reliable mechanism for female mate discrimination. These findings provide insights into chemical communication in B. dorsalis and add elements for the design of pest control programs.
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Affiliation(s)
- Yaoyao Chen
- National Key Laboratory of Green Pesticide, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
| | - Yuhua Zhang
- National Key Laboratory of Green Pesticide, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
| | - Shupei Ai
- National Key Laboratory of Green Pesticide, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
| | - Shuyuan Xing
- National Key Laboratory of Green Pesticide, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
| | - Guohua Zhong
- National Key Laboratory of Green Pesticide, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
| | - Xin Yi
- National Key Laboratory of Green Pesticide, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture and Rural Affairs, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, College of Plant Protection, South China Agricultural University, Guangzhou510642, China
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Jing TX, Yuan CY, Meng LW, Hou QL, Liu XQ, Dou W, Yuan GR, Wang JJ. CYP4G100 contributes to desiccation resistance by mediating cuticular hydrocarbon synthesis in Bactrocera dorsalis. INSECT MOLECULAR BIOLOGY 2022; 31:772-781. [PMID: 35860987 DOI: 10.1111/imb.12803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
The oriental fruit fly Bactrocera dorsalis (Hendel) is expanding its distribution to higher latitudes. Our goal in this study was to understand how B. dorsalis adapts to higher latitude environments that are more arid than tropical regions. Cuticular hydrocarbons (CHCs) on the surface of the epicuticle in insects act as a hydrophobic barrier against water loss. The essential decarbonylation reaction in CHC synthesis is catalysed by CYP4G, a cytochrome P450 subfamily protein. Hence, in B. dorsalis it is necessary to clarify the function of the CYP4G gene and its role in desiccation resistance. CYP4G100 was identified in the B. dorsalis genome. The complete open reading frame (ORF) encodes a CYP4 family protein (552 amino acid residues) that has the CYP4G-specific insertion. This CYP4G gene was highly expressed in adults, especially in the oenocyte-rich peripheral fat body. The gene can be induced by desiccation treatment, suggesting its role in CHC synthesis and waterproofing. Silencing of CYP4G100 resulted in a decrease of CHC levels and the accumulation of triglycerides. It also increased water loss and resulted in higher desiccation susceptibility. CYP4G100 is involved in hydrocarbon synthesis and contributes to cuticle waterproofing to help B. dorsalis resist desiccation in arid environments.
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Affiliation(s)
- Tian-Xing Jing
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | - Chen-Yang Yuan
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
| | - Li-Wei Meng
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
| | - Qiu-Li Hou
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | - Xiao-Qiang Liu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
| | - Wei Dou
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
| | - Guo-Rui Yuan
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
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Scolari F, Valerio F, Benelli G, Papadopoulos NT, Vaníčková L. Tephritid Fruit Fly Semiochemicals: Current Knowledge and Future Perspectives. INSECTS 2021; 12:insects12050408. [PMID: 33946603 PMCID: PMC8147262 DOI: 10.3390/insects12050408] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 12/14/2022]
Abstract
The Dipteran family Tephritidae (true fruit flies) comprises more than 5000 species classified in 500 genera distributed worldwide. Tephritidae include devastating agricultural pests and highly invasive species whose spread is currently facilitated by globalization, international trade and human mobility. The ability to identify and exploit a wide range of host plants for oviposition, as well as effective and diversified reproductive strategies, are among the key features supporting tephritid biological success. Intraspecific communication involves the exchange of a complex set of sensory cues that are species- and sex-specific. Chemical signals, which are standing out in tephritid communication, comprise long-distance pheromones emitted by one or both sexes, cuticular hydrocarbons with limited volatility deposited on the surrounding substrate or on the insect body regulating medium- to short-distance communication, and host-marking compounds deposited on the fruit after oviposition. In this review, the current knowledge on tephritid chemical communication was analysed with a special emphasis on fruit fly pest species belonging to the Anastrepha, Bactrocera, Ceratitis, and Rhagoletis genera. The multidisciplinary approaches adopted for characterising tephritid semiochemicals, and the real-world applications and challenges for Integrated Pest Management (IPM) and biological control strategies are critically discussed. Future perspectives for targeted research on fruit fly chemical communication are highlighted.
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Affiliation(s)
- Francesca Scolari
- Institute of Molecular Genetics IGM-CNR “Luigi Luca Cavalli-Sforza”, I-27100 Pavia, Italy
- Correspondence: (F.S.); (L.V.); Tel.: +39-0382-986421 (F.S.); +420-732-852-528 (L.V.)
| | - Federica Valerio
- Department of Biology and Biotechnology, University of Pavia, I-27100 Pavia, Italy;
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy;
| | - Nikos T. Papadopoulos
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Fytokou st., N. Ionia, 38446 Volos, Greece;
| | - Lucie Vaníčková
- Department of Chemistry and Biochemistry, Faculty of AgriSciences Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Correspondence: (F.S.); (L.V.); Tel.: +39-0382-986421 (F.S.); +420-732-852-528 (L.V.)
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Park SJ, Pandey G, Castro-Vargas C, Oakeshott JG, Taylor PW, Mendez V. Cuticular Chemistry of the Queensland Fruit Fly Bactrocera tryoni (Froggatt). Molecules 2020; 25:E4185. [PMID: 32932681 PMCID: PMC7571174 DOI: 10.3390/molecules25184185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 08/26/2020] [Accepted: 09/10/2020] [Indexed: 01/01/2023] Open
Abstract
The cuticular layer of the insect exoskeleton contains diverse compounds that serve important biological functions, including the maintenance of homeostasis by protecting against water loss, protection from injury, pathogens and insecticides, and communication. Bactrocera tryoni (Froggatt) is the most destructive pest of fruit production in Australia, yet there are no published accounts of this species' cuticular chemistry. We here provide a comprehensive description of B. tryoni cuticular chemistry. We used gas chromatography-mass spectrometry to identify and characterize compounds in hexane extracts of B. tryoni adults reared from larvae in naturally infested fruits. The compounds found included spiroacetals, aliphatic amides, saturated/unsaturated and methyl branched C12 to C20 chain esters and C29 to C33 normal and methyl-branched alkanes. The spiroacetals and esters were found to be specific to mature females, while the amides were found in both sexes. Normal and methyl-branched alkanes were qualitatively the same in all age and sex groups but some of the alkanes differed in amounts (as estimated from internal standard-normalized peak areas) between mature males and females, as well as between mature and immature flies. This study provides essential foundations for studies investigating the functions of cuticular chemistry in this economically important species.
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Affiliation(s)
- Soo J. Park
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Australian Research Council Centre for Fruit Fly Biosecurity Innovation, Macquarie University, North Ryde, NSW 2109, Australia
| | - Gunjan Pandey
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Commonwealth Scientific and Industrial Research Organisation Land and Water, Black Mountain, Acton, ACT 2601, Australia
| | - Cynthia Castro-Vargas
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Commonwealth Scientific and Industrial Research Organisation Land and Water, Black Mountain, Acton, ACT 2601, Australia
| | - John G. Oakeshott
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Commonwealth Scientific and Industrial Research Organisation Land and Water, Black Mountain, Acton, ACT 2601, Australia
| | - Phillip W. Taylor
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Australian Research Council Centre for Fruit Fly Biosecurity Innovation, Macquarie University, North Ryde, NSW 2109, Australia
| | - Vivian Mendez
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Australian Research Council Centre for Fruit Fly Biosecurity Innovation, Macquarie University, North Ryde, NSW 2109, Australia
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6
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Vaníčková L, Pompeiano A, Maděra P, Massad TJ, Vahalík P. Terpenoid profiles of resin in the genus Dracaena are species specific. PHYTOCHEMISTRY 2020; 170:112197. [PMID: 31759268 DOI: 10.1016/j.phytochem.2019.112197] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 10/08/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Dragon's blood is the colloquial name for the red resin produced by tree species in the genus Dracaena (Asparagaceae), and the resin is directly involved in plant defensive mechanisms against pathogen and herbivore attack. It is also widely used in traditional folk medicine due to its antiviral, antimicrobial and antitumor activities. In the present work, a method using solid phase microextraction combined with two-dimensional gas chromatography with time-of-flight mass spectrometric detection was developed for the analysis of resin from five Dracaena species, namely Dracaena cinnabari Balf. f., D. serrulata Baker, D. ombet Heuglin ex Kotschy & Peyr., D. draco subsp. draco, and D. draco subsp. ajgal. Twenty terpenoid components in the resins of the five species were identified after comparative study of the volatile metabolite profiles. Monoterpenes were found to be species specific, and the observed differences might be further investigated as a possible means of identifying chemotaxonomic markers. In addition, for the first time, we describe the terpenoid volatile profiles of D. ombet and D. serrulata resins.
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Affiliation(s)
- Lucie Vaníčková
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic; International Clinical Research Centre of St.Anne's University Hospital Brno, Brno, Czech Republic
| | - Antonio Pompeiano
- Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic; International Clinical Research Centre of St.Anne's University Hospital Brno, Brno, Czech Republic
| | - Petr Maděra
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic.
| | - Tara Joy Massad
- Department of Scientific Services, Gorongosa National Park, Sofala, Mozambique
| | - Petr Vahalík
- Department of Forest Management and Applied Geoinformatics, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic
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Bragard C, Dehnen‐Schmutz K, Di Serio F, Gonthier P, Jacques M, Jaques Miret JA, Justesen AF, Magnusson CS, Milonas P, Navas‐Cortes JA, Parnell S, Potting R, Reignault PL, Thulke H, Van der Werf W, Vicent Civera A, Yuen J, Zappalà L, Bali EM, Papadopoulos N, Papanastassiou S, Czwienczek E, MacLeod A. Pest categorisation of non‐EU Tephritidae. EFSA J 2020. [DOI: 10.2903/j.efsa.2020.5931] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Drosopoulou E, Syllas A, Goutakoli P, Zisiadis GA, Konstantinou T, Pangea D, Sentis G, van Sauers-Muller A, Wee SL, Augustinos AA, Zacharopoulou A, Bourtzis K. Τhe Complete Mitochondrial Genome of Bactrocera carambolae (Diptera: Tephritidae): Genome Description and Phylogenetic Implications. INSECTS 2019; 10:E429. [PMID: 31795125 PMCID: PMC6955806 DOI: 10.3390/insects10120429] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 11/15/2019] [Accepted: 11/21/2019] [Indexed: 01/09/2023]
Abstract
Bactrocera carambolae is one of the approximately 100 sibling species of the Bactrocera dorsalis complex and considered to be very closely related to B. dorsalis. Due to their high morphological similarity and overlapping distribution, as well as to their economic impact and quarantine status, the development of reliable markers for species delimitation between the two taxa is of great importance. Here we present the complete mitochondrial genome of B. carambolae sourced from its native range in Malaysia and its invaded territory in Suriname. The mitogenome of B. carambolae presents the typical organization of an insect mitochondrion. Comparisons of the analyzed B. carambolae sequences to all available complete mitochondrial sequences of B. dorsalis revealed several species-specific polymorphic sites. Phylogenetic analysis based on Bactrocera mitogenomes supports that B. carambolae is a differentiated taxon though closely related to B. dorsalis. The present complete mitochondrial sequences of B. carambolae could be used, in the frame of Integrative Taxonomy, for species discrimination and resolution of the phylogenetic relationships within this taxonomically challenging complex, which would facilitate the application of species-specific population suppression strategies, such as the sterile insect technique.
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Affiliation(s)
- Elena Drosopoulou
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.S.); (P.G.); (G.-A.Z.); (T.K.); (D.P.); (G.S.)
| | - Alexandros Syllas
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.S.); (P.G.); (G.-A.Z.); (T.K.); (D.P.); (G.S.)
| | - Panagiota Goutakoli
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.S.); (P.G.); (G.-A.Z.); (T.K.); (D.P.); (G.S.)
| | - Georgios-Alkis Zisiadis
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.S.); (P.G.); (G.-A.Z.); (T.K.); (D.P.); (G.S.)
| | - Theodora Konstantinou
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.S.); (P.G.); (G.-A.Z.); (T.K.); (D.P.); (G.S.)
| | - Dimitra Pangea
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.S.); (P.G.); (G.-A.Z.); (T.K.); (D.P.); (G.S.)
| | - George Sentis
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.S.); (P.G.); (G.-A.Z.); (T.K.); (D.P.); (G.S.)
| | - Alies van Sauers-Muller
- Consultant, retired from Ministry of Agriculture, Animal Husbandry and Fisheries, Carambola Fruit Fly Project, Damboentong 282, Tijgerkreek, Saramacca, Suriname;
| | - Suk-Ling Wee
- Center for Insect Systematics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia;
| | - Antonios A. Augustinos
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Seibersdorf, A-1400 Vienna, Austria; (A.A.A.); (K.B.)
| | | | - Kostas Bourtzis
- Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Seibersdorf, A-1400 Vienna, Austria; (A.A.A.); (K.B.)
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Chemical Compounds from Female and Male Rectal Pheromone Glands of the Guava Fruit Fly, Bactrocera correcta. INSECTS 2019; 10:insects10030078. [PMID: 30889849 PMCID: PMC6468847 DOI: 10.3390/insects10030078] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/14/2019] [Accepted: 03/15/2019] [Indexed: 11/17/2022]
Abstract
The guava fruit fly, Bactrocera correcta, is one of the major pests affecting mango (Mangifera indica) and guava (Psidium guajava) production in China. The compound β-caryophyllene was identified from the rectal gland extracts of wild B. correcta males and was demonstrated to be a more specific and potent male lure than methyl eugenol (ME) for B. correcta. In order to find potential additional pheromone attractants for the monitoring and mass-trapping of this fruit fly, a series of chemical and behavioral assays were conducted in this study. Ten compounds were identified from the rectal glands of virgin B. correcta females. These compounds consisted of five major compounds (i.e., ethyl dodecanoate, ethyl tetradecanoate, ethyl (E)-9-hexadecenoate, ethyl hexadecanoate, and ethyl (Z)-9-octadecenoate) in high quantities, and other compounds (i.e., octanal, N-(3-methylbutyl) acetamide, (Z)-9-tricosene, ethyl octadecanoate, and ethyl eicosanoate) in trace amounts, while virtually no compounds were found in male rectal glands. The bioassays indicate that female rectal gland extracts are attractive to virgin females and males. Furthermore, a cyclical production of the five major compounds was found, recurring at roughly 10-d intervals with peaks in 10–13-, 25-, and 35-d-old females. Collectively, these results will contribute to the understanding of pheromone communication in B. correcta and may provide important information for improving existing monitoring and control methods for this pest.
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