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Güler A, Karakoç E, Gökdere G, Doğaç E, Taşkin V. Genetic structure of Mediterranean fruit fly (Diptera: Tephritidae) populations from Turkey revealed by mitochondrial DNA markers. J Genet 2019; 98:51. [PMID: 31204711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ceratitis capitata is one among the most destructive and economically important agricultural pests worldwide. Despite its economic significance, the population structures of this pest have remained relatively unexplored in the eastern Mediterranean basin. Using two mitochondrial markers, the present study aimed to examining the population genetic structure and diversity of C. capitata populations in Turkey, the region that covers a large part of the eastern Mediterranean area. Our results revealed that the Turkish Mediterranean fruit fly populations are characterized by low levels of genetic diversity and limited population differentiation. For comparison purposes, wemerged the sequences identified in the present study with the previously reported sequences from acrossthe world into the data matrix. The haplotype network showed that, unlike the African samples the Mediterranean samples and samples from the new world (America, Pacific region and Australia) did not show any clear pattern of geographical structuring, which indicates that the Mediterranean basin, particularly the eastern Mediterranean region populations, may have played a moreimportant role in the colonization of C. capitata populations to the new world. The results also revealed a close genetic relationship between the Turkish and Iranian populations, suggesting that the Iranian C. capitata populations probably originated from Turkey.
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Affiliation(s)
- Abuzer Güler
- Faculty of Science, Department of Biology, Muğla Sitki Kocman University, 48100 Kotekli, Muğla, Turkey.
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Güler A, Karakoç E, Gökdere G, Doğaç E, Taşkin V. Genetic structure of Mediterranean fruit fly (Diptera: Tephritidae) populations from Turkey revealed by mitochondrial DNA markers. J Genet 2019. [DOI: 10.1007/s12041-019-1106-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Morçiçek B, Taskin BG, Doğaç E, Doğaroğlu T, Taskin V. Evidence of natural Wolbachia infections and molecular identification of field populations of Culex pipiens complex (Diptera: Culicidae) mosquitoes in western Turkey. J Vector Ecol 2018; 43:44-51. [PMID: 29757522 DOI: 10.1111/jvec.12281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 10/26/2017] [Indexed: 06/08/2023]
Abstract
Establishing reliable risk projection information about the distribution pattern of members of the Culex pipiens complex is of particular interest, as these mosquitoes are competent vectors for certain disease-causing pathogens. Wolbachia, a maternally inherited bacterial symbiont, are distributed in various arthropod species and can induce cytoplasmic incompatibility, i.e., reduced egg hatch, in certain crosses. It is being considered as a tool for population control of mosquito disease vectors. The Aegean region is characterized by highly populated, rural, and agricultural areas and is also on the route of the migratory birds. In this study, a fragment of the 658 bp of the mitochondrial cytochrome c oxidase subunit 1 (COI) gene, which includes the barcode region, was employed to differentiate Cx. pipiens complex species found in this region. Moreover, for the first time, the prevalence of Wolbachia endobacteria in these natural populations was examined using PCR amplification of a specific wsp gene. Our results revealed a widespread (more than 90%, n=121) presence of the highly efficient West Nile virus vector Cx. quinquefasciatus in the region. We also found that Wolbachia infection is widespread; the average prevalence was 62% in populations throughout the region. This study provided valuable information about the composition of Cx. pipiens complex mosquitoes and the prevalence of Wolbachia infection in these populations in the Aegean region. This information will be helpful in tracking mosquito-borne diseases and designing and implementing Wolbachia-based control strategies in the region.
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Affiliation(s)
- Burçin Morçiçek
- Muğla Sıtkı Kocman University, Faculty of Science, Department of Biology, 48100 Kotekli, Muğla, Turkey
| | - Belgin Gocmen Taskin
- Muğla Sıtkı Kocman University, Faculty of Science, Department of Biology, 48100 Kotekli, Muğla, Turkey
| | - Ersin Doğaç
- Koycegiz Vocational School, Department of Medicinal and Aromatic Plants, Mugla Sitki Kocman University Mugla, Turkey
| | - Taylan Doğaroğlu
- Ula Vocational School, Department of Bee Breeding, Mugla Sitki Kocman University Mugla, Turkey
| | - Vatan Taskin
- Muğla Sıtkı Kocman University, Faculty of Science, Department of Biology, 48100 Kotekli, Muğla, Turkey
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Doğaç E, Kandemir İ, Taşkın V. Geographical distribution and frequencies of organophosphate-resistant Ace alleles and morphometric variations in olive fruit fly populations. Pest Manag Sci 2015; 71:1529-1539. [PMID: 25491602 DOI: 10.1002/ps.3958] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 10/25/2014] [Accepted: 12/03/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND In the Mediterranean basin, organophosphate (OP) insecticides have been used intensively to control olive fly populations. Acetylcholinesterase (Ace) is the molecular target of OP insecticides, and three resistance-associated mutations that confer different levels of OP insensitivity have been identified. In this study, genotypes of olive fly Ace were determined in field-collected populations from broad geographical areas in Turkey. In addition, the levels of asymmetry of wing and leg characters were compared in these populations. RESULTS Our study revealed the existence of a genetically smooth stratification pattern in OP resistance allele distribution in the olive fly populations of Turkey. In contrast to earlier findings, the frequency of Δ3Q was found to be lower in the Aegean region, where the populations have been subjected to high selection pressure. Results based on the morphological differences among the samples revealed a similar pattern for both sides and did not demonstrate a clear separation. CONCLUSION The frequencies and geographic range of resistance alleles indicate that they were selected in the Aegean coast of Turkey and then spread westward towards Europe. One possible explanation for the absence of morphological asymmetry in olive fly samples might be the presence of modifier allele(s) that compensate for the increase in asymmetry.
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Affiliation(s)
- Ersin Doğaç
- Department of Biology, Faculty of Science, Muğla Sıtkı Kocman University, Kotekli, Muğla, Turkey
| | - İrfan Kandemir
- Department of Biology, Faculty of Science, Ankara University, Beşevler, Ankara, Turkey
| | - Vatan Taşkın
- Department of Biology, Faculty of Science, Muğla Sıtkı Kocman University, Kotekli, Muğla, Turkey
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Doğaç E. Mitochondrial genetic variations in natural house fly (Musca domestica L.) populations from the western and southern parts of Turkey. Mitochondrial DNA A DNA Mapp Seq Anal 2015; 27:3802-7. [PMID: 26369566 DOI: 10.3109/19401736.2015.1082086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The house fly Musca domestica Linnaeus (Diptera) is one of the most studied species that is globally distributed and well known to everyone. In order to ensure baseline knowledge for the genetic resources of the species, genetic variation in M. domestica populations from western and southern parts of Turkey was investigated using nucleotide sequence analysis of 348 base pairs (bp) in the mitochondrial cytochrome oxidase subunit I gene (COI). Samples of 192 individuals were collected from 16 localities of Turkey. There were 10 variable sites defining two haplotypes of COI in this species. There was no difference in geographical distribution frequency between the two regions of Turkey. Overall, haplotype diversity (h) was low, ranging from 0 to 0.5606 with the average overall value of 0.178 ± 0.04 and nucleotide diversity (π), ranged from 0 to 0.0056 with the overall mean of 0.0016. Analysis of molecular variance (AMOVA) indicated that genetic differentiation within individuals and populations was low and significant (p < 0.05). Except Afyon population, conventional population statistic FST showed no significant genetic structure along the range of M. domestica populations. Sixteen populations clustered under six haplotypes and two of them are unique to Turkey. Haplotype networks suggested that house fly populations in Turkey are grouped with the Palearctic region, which is the most probable place for the origin of this species.
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Affiliation(s)
- Ersin Doğaç
- a Department of Medicinal and Aromatic Plants , Köyceğiz Vocational School, Muğla Sıtkı Koçman University , Muğla , Turkey
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Doğaç E, Ağdamar S, Keskin E, Tarkan AS, Yapıcı S, Acar Ü. Mitochondrial genetic variations of an introduced freshwater fish, goldfish Carassius auratus at the frontier between Europe and Asia (western Anatolia, Turkey): proximity to Europe rather than East Asia? Mitochondrial DNA A DNA Mapp Seq Anal 2015; 27:4008-4014. [PMID: 25648924 DOI: 10.3109/19401736.2014.1003820] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Carassius auratus is one of the most significant ornamental and food fishes of the world that is globally distributed and well known. Although it is known to have existed at least for six decades and expanding its distribution range in Turkish waters, there is a dearth of information on genetic structure and variations of goldfish in Turkey. In this study, four mitochondrial genes (Cytochrome b, cytochrome oxidase II, 12S ribosomal RNA, and 16S ribosomal RNA) were used to infer the genetic variations of goldfish populations sampled from western part of Anatolia, Turkey. Three populations were clustered under three haplotypes for each gene and all haplotypes were special. Cytochrome b was found to have more variable sites and higher genetic diversity than other genes. According to the haplotype networks, goldfish populations in Turkey showed high level of genetic structuring and originated from the common haplotype known in native East Asian populations of the species. Extensive sampling scheme covering whole Anatolia should provide better understanding on the dispersal pattern of the species.
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Affiliation(s)
- Ersin Doğaç
- a Department of Medicinal and Aromatic Plants , Köyceğiz Vocational School, Muğla Sıtkı Koçman University , Muğla , Turkey
| | - Sevan Ağdamar
- b Faculty of Fisheries , Muğla Sıtkı Koçman University , Muğla , Turkey , and
| | - Emre Keskin
- c Department of Fisheries and Aquaculture, Faculty of Agriculture , Ankara University , Ankara , Turkey
| | - Ali Serhan Tarkan
- b Faculty of Fisheries , Muğla Sıtkı Koçman University , Muğla , Turkey , and
| | - Sercan Yapıcı
- b Faculty of Fisheries , Muğla Sıtkı Koçman University , Muğla , Turkey , and
| | - Ümit Acar
- b Faculty of Fisheries , Muğla Sıtkı Koçman University , Muğla , Turkey , and
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Ağdamar S, Tarkan AS, Keskin E, Top N, Doğaç E, Baysal Ö, Emiroğlu Ö. The role of environmental factors and genetic diversity on colonization success of a non-native fish, Lepomis gibbosus from western part of Turkey. BIOCHEM SYST ECOL 2015. [DOI: 10.1016/j.bse.2014.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Başkurt S, Taşkin BG, Doğaç E, Taşkın V. Polymorphism in the acetylcholinesterase gene of Musca domestica L. field populations in Turkey. J Vector Ecol 2011; 36:248-257. [PMID: 22129396 DOI: 10.1111/j.1948-7134.2011.00165.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Acetylcholinesterase (AChE), encoded by the Ace gene, is the primary target of organophosphates (OPs) and carbamates (CBs) in insects. Ace mutations have been identified in OP and CB resistant strains of Musca domestica. In this study, the Ace gene was partially amplified and sequenced at amino acid positions 260, 342, and 407 to determine the frequencies of these mutations in housefly samples collected from farms and garbage disposal sites of 16 provinces in the Aegean and Mediterranean regions of Turkey. In addition, the percent remaining AChE activities in these samples were assayed by using three OPs (malaoxon, paraoxon, and dichlorvos) and one CB (carbaryl) compound as inhibitors. In all the analyzed samples, 13 different combinations at the three amino acid positions were identified and the L/V260-A/G342-F/Y407 combination was found in the highest frequency. No susceptible individual was detected. The highest mean percent remaining AChE activities were detected in the individuals having the L260-A/G342-F/Y407 genotype when malaoxon and paraoxon were used as inhibitors and in the individuals with the L260-A342-F/Y407 combination when dichlorvos and carbaryl were used as inhibitors. The obtained data were heterogeneous and there was no exact correlation between the molecular genetic background and the resistance phenotypes of the flies. The findings of this study at the molecular and biochemical levels indicate the presence of significant control problems in the field.
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Affiliation(s)
- Sibel Başkurt
- Mugla University, Department of Biology, 48000 Kotekli, Mugla, Turkey
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Taşkın V, Başkurt S, Doğaç E, Taşkin BG. Frequencies of pyrethroid resistance-associated mutations of Vssc1 and CYP6D1 in field populations of Musca domestica L. in Turkey. J Vector Ecol 2011; 36:239-247. [PMID: 22129395 DOI: 10.1111/j.1948-7134.2011.00164.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
House flies were collected from 16 different provinces in the Aegean and Mediterranean regions of Turkey, and the frequencies of pyrethroid resistance-associated mutations in Vssc1 and CYP6D1 in these field-collected populations were studied. Although there is no organized resistance management program for house fly control in Turkey, it is known that different groups of insecticides, including pyrethroids, are used. The frequencies of both Vssc1 and CYP6D1 alleles were weighted toward the susceptibles, with Vssc1-susceptible alleles having higher frequencies in both regions (0.75 in Aegean and 0.69 in Mediterranean populations) than CYP6D1-susceptible alleles (0.65 in Aegean and 0.56 in Mediterranean populations). The frequencies of kdr-his alleles were higher than the frequencies of kdr alleles in these populations. While the frequencies of kdr-his alleles were close to each other in the Aegean (0.23) and Mediterranean (0.17) populations, the frequencies of kdr alleles remarkably differed in these two regions, with values of 0.02 and 0.14, respectively. In contrast to Europe, Asia, and the U.S.A., no super-kdr allele was detected in the samples from both regions. We identified six and eight different Vssc1+CYP6D1 genotype classes in the Aegean and Mediterranean regions, respectively. The three most common genotype classes in the regions were susceptible Vssc1 with heterozygous CYP6D1v1 (29%), sus/kdr-his1 with heterozygous CYP6D1v1 (23%), and susceptible Vssc1 with CYP6D1 (22%). The total frequencies of these three most common genotype classes (approximately 75%) obtained in our study were very close to the value obtained in Florida in a previous study, which was related by the similarity of temperature patterns between Florida and the corresponding regions of Turkey. This may reflect the lack of overwintering fitness cost associated with resistance alleles in both climates.
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Affiliation(s)
- Vatan Taşkın
- Department of Biology, Faculty of Science, Muğla University, 48000 Kötekli, Muğla, Turkey.
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Başkurt SI, Doğaç E, Taşkın V, Taşkın BIG. Frequencies of organophosphate resistance-associated mutations in the acetylcholinesterase gene of field collected olive fly (Bactrocera oleae) populations under different insecticide regimes. Acta Biol Hung 2011; 62:22-33. [PMID: 21388916 DOI: 10.1556/abiol.61.2011.1.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In the present study, the frequencies of three organophosphate (OP) resistance-associated mutations in acetylcholinesterase gene of Bactrocera oleae (BoAce) populations collected from 8 different important olivegrowing areas in the west part of Turkey were determined. Populations were sampled from the areas that have been treated with only the pyrethroid α-cypermethrin; pyrethroids plus OPs; deltamethrin with pheromone eco-traps, and no insecticide treatment applied areas for many years. For Ile214Val and Gly488Ser point mutations PCR-RFLP and for Δ3Q deletion mutation PCR diagnostic tests were carried out. Seventy-two percent of the total individuals analyzed in the study were exhibited heterozygous genotype (RS) for both Ile214Val and Gly488Ser point and homozygous susceptible genotype (SS) for Δ3Q deletion mutations. This RS/RS/SS combination together with RS/RR/SS with the frequency of 13% were the most common two combinations observed in all of the populations under different insecticide regimes, even in the populations under no insecticide pressure for many years. Independent evaluation of the three mutations resulted in 0.450, 0.534 and 0.037 frequency values for the resistant alleles of 214Val, 488Ser and Δ3Q mutations, respectively. Among the studied populations, the frequencies of resistant alleles for the positions of 214 and 488 were not differed from each other. However, in 3 of the populations the frequency of the R allele of Δ3Q was zero and it changed between 0.025 and 0.100 in the remaining five populations. Results of this study contributed to the distribution pattern of the two point mutations in Europe and a pattern for Δ3Q mutation was determined for the first time in the field collected olive fly samples.
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Affiliation(s)
- S Ibel Başkurt
- Department of Biology, Muğla University, Kötekli, Muğla Turkey.
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