Geographical distribution and frequencies of organophosphate‐resistant <i>Ace</i> alleles and morphometric variations in olive fruit fly populations

Doğaç, Ersin; Kandemi̇r, İrfan; Taşkın, Vatan

doi:10.1002/ps.3958

Cited by 9 publications

(9 citation statements)

References 71 publications

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“…The differences were attributed to recent introduction of resistant alleles. However, differences in frequencies of resistant associated alleles were found in Turkey as well (Doğaç et al, 2015), possibly due to local specificity of insecticides use. Another interesting finding was observed by the same authors who identified higher frequency of Δ3Q mutation in a region with lower frequencies of the other two mutations.…”

Section: Discussionmentioning

confidence: 97%

“…All previous observations of several authors identified Δ3Q to be always in a heterozygous state. However, Doğaç et al (2015) identified one homozygous sample in the Hatay and one in the Aydin populations.…”

Section: Frequency Of δ3q Mutationmentioning

confidence: 94%

“…Since complete concordance between the zygosities of I214V and G488S was observed, authors suggested that the chromosome carrying both substitutions was introduced. Doğaç et al (2015) studied olive flies collected in 2010 from 12 provinces from Aegean and Mediterranean regions in Turkey and found that resistant forms of exon III and VI had a low to moderate frequency, while they reached the highest frequency, nearly 80 %, in the Aegean populations. This indicates that they were selected in the Aegean coast of Turkey and then spread westward towards Europe.…”

Section: Frequency Of I214v and G448smentioning

confidence: 99%

“…However, they didn't observed Δ3Q mutation in Spain, but Kakani et al (2013) detected one allele with Δ3Q mutation. Doğaç et al (2015) monitored the presence of Δ3Q mutation in the Mediterranean and Aegean regions of Turkey. They observed Δ3Q mutation to be more widespread in the Mediterranean region with frequencies from 6 % to 20 %.…”

Section: Frequency Of δ3q Mutationmentioning

confidence: 99%

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A review of plant protection against the olive fly (Bactrocera oleae (Rossi, 1790) Gmelin) and molecular methods to monitor the insecticide resistance alleles

Hladnik

2017

AAS

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Olive fly (Bactrocera oleae (Rossi, 1790) Gmelin) is one of the most important olive pests worldwide. Most plant protection measures are based on insecticides, especially organophosphates, pyrethroids, and recently a spinosad. Insecticides are used as cover sprays or in more environmentally friendly methods in which insecticides are used in combination with attractants and pheromones as bait sprays or for mass trapping. However, due to negative impacts of insecticides to environment, new plant protection methods are constantly developing with the aim to lower the consumption of insecticides or even to eliminate them by biological control with entomopathogenic organisms, sterile insect technique (SIT), or transgenic method RIDL (release of insects carrying a dominant lethal). However, these methods need to be improved in order to guarantee adequate protection. Alternative methods than those traditionally used are required due to long term usage causing the development of resistance to the insecticides, ultimately lowering their effectiveness. Molecular methods for monitoring the frequencies of resistant alleles and the current status of resistance alleles in olive growing countries are reviewed here.

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Section: Discussionmentioning

confidence: 97%

Section: Frequency Of δ3q Mutationmentioning

confidence: 94%

Section: Frequency Of I214v and G448smentioning

confidence: 99%

Section: Frequency Of δ3q Mutationmentioning

confidence: 99%

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A review of plant protection against the olive fly (Bactrocera oleae (Rossi, 1790) Gmelin) and molecular methods to monitor the insecticide resistance alleles

Hladnik

2017

AAS

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“…The current knowledge on genetic resistance status for olive fruit flies field populations is only available for a few specific regions. Olf carrying resistant alleles to OPs has been observed in field populations from Greece, Italy, Cyprus and Turkey [16][17][18][19][20]. Indeed, the frequencies reported for IV-VII exons resistant alleles encompassed values between 69%-90% for Greek populations, between 75%-83% for Italian and about 68% for Turkish populations [16,18,20].…”

Section: Introductionmentioning

confidence: 99%

Phylogeography of Organophosphate Resistant ace Alleles in Spanish Olive Fruit Fly Populations: A Mediterranean Perspective in the Global Change Context

Lantero

Matallanas

Pascual

et al. 2020

Insects

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The olive fruit fly (olf) Bactrocera oleae is the most damaging olive pest. The intensive use of organophosphates (OPs) to control it, led to an increase in resistance in field populations. This study assesses the presence and distribution of three mutations at the ace gene related to target site insensitivity to OPs in Spain. Samples from other Mediterranean countries were included as external references. Resistance-conferring alleles (from exons IV and VII of the ace gene) reached almost an 80% frequency in olf Spanish populations. In total, 62% of them were homozygous (RR/RR), this being more common in eastern mainland Spain. High frequencies of RR/RR individuals were also found in North Mediterranean samples. Conversely, in Tunisia, only sensitive alleles were detected. Finally, the exon X mutation ∆Q3 had an extremely low frequency in all samples. The high frequency of genotype RR/RR in Spain indicates high fitness in an agroecosystem treated with pesticides, in contrast to ∆Q3. At exon IV all flies carried the same haplotype for the allele conferring resistance. The sequence analysis at this exon suggests a unique origin and fast expansion of the resistant allele. These results provide evidence that OPs appropriate use is needed and prompt the search for alternative methods for olf pest control.

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Origin, selection, and spread of diamide insecticide resistance allele in field populations of diamondback moth in east and southeast Asia

Uesugi

Jouraku

Pattalung³

et al. 2020

Pest Management Science

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BACKGROUND: The investigation of molecular mechanisms and evolution of resistance to insecticides is an ongoing challenge, as researchers must provide guidance to manage the resistance to achieve sustainable production in agriculture. Predicting, monitoring, and managing insecticide resistance requires information on the origins, selection, and spread of resistance genes. The resistance of Plutella xylostella (L.) against diamide insecticides is becoming an increasingly severe problem in east and southeast Asia. In this study, the evolution of resistance was investigated using a resistance allele [ryanodine receptor (RyR); G4946E mutation] and its flanking regions, as well as mitochondrial cytochrome c oxidase subunit I (mtCOI). RESULTS: The sequences of the flanking region of the G4946E and mtCOI suggested that the G4946E mutation has a key role in resistance. Furthermore, the G4946E mutation has multiple origins, and congenic resistant mutations have spread across east and southeast Asia, despite substantial geographical barriers. In addition, the susceptibility of field populations partially recovered during winter, based on the observed decrease in the G4946E (resistant allele) frequency. Finally, the resistance level indexed by the frequency of the E4946 allele was significantly lower in non-overwintering regions than in overwintering regions. CONCLUSION: The information of the present study is useful to monitor resistance using molecular markers and to develop strategies to delay the evolution of diamide resistance.

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Geographical distribution and frequencies of organophosphate‐resistant Ace alleles and morphometric variations in olive fruit fly populations

Cited by 9 publications

References 71 publications

A review of plant protection against the olive fly (Bactrocera oleae (Rossi, 1790) Gmelin) and molecular methods to monitor the insecticide resistance alleles

A review of plant protection against the olive fly (Bactrocera oleae (Rossi, 1790) Gmelin) and molecular methods to monitor the insecticide resistance alleles

Phylogeography of Organophosphate Resistant ace Alleles in Spanish Olive Fruit Fly Populations: A Mediterranean Perspective in the Global Change Context

Origin, selection, and spread of diamide insecticide resistance allele in field populations of diamondback moth in east and southeast Asia

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