Miniature Inverted-Repeat Transposable Elements (MITEs) in the Two Lepidopteran Genomes of Helicoverpa armigera and Helicoverpa zea

Miniature inverted-repeat transposable elements MITEs are ubiquitous, non-autonomous class II transposable elements. The moths, and , are recognized as the two most serious pest species within the genus. Moreover, these pests have the ability to develop insecticide resistance. In the present study,...

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Bibliographic Details
Published in:Insects (Basel, Switzerland) Switzerland), 2022-03, Vol.13 (4), p.313
Main Authors: Klai, Khouloud, Zidi, Marwa, Chénais, Benoît, Denis, Françoise, Caruso, Aurore, Casse, Nathalie, Mezghani Khemakhem, Maha
Format: Article
Language:English
Subjects:
Animal genetics
Biochemistry, Molecular Biology
Bioinformatics
C2 gene
Carbamate pesticides
Carbamates (tradename)
Comparative analysis
Cytochrome
Cytochrome P450
Cytochromes P450
Esterase
Evolution
Genes
Genetics
Genomes
Helicoverpa armigera
Helicoverpa zea
Insecticide resistance
Insecticides
Insertion
Life Sciences
miniature inverted-repeats transposable elements
Organochlorine compounds
Organophosphates
Pesticide resistance
Pests
Pyrethroids
Quantitative Methods
Spinosad
Toxins
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Summary:Miniature inverted-repeat transposable elements MITEs are ubiquitous, non-autonomous class II transposable elements. The moths, and , are recognized as the two most serious pest species within the genus. Moreover, these pests have the ability to develop insecticide resistance. In the present study, we conducted a genome-wide analysis of MITEs present in and genomes using the bioinformatics tool, MITE tracker. Overall, 3570 and 7405 MITE sequences were identified in and genomes, respectively. Comparative analysis of identified MITE sequences in the two genomes led to the identification of 18 families, comprising 140 MITE members in and 161 MITE members in Based on target site duplication (TSD) sequences, the identified families were classified into three superfamilies (PIF/harbinger, Tc1/mariner and CACTA). Copy numbers varied from 6 to 469 for each MITE family. Finally, the analysis of MITE insertion sites in defensome genes showed intronic insertions of 11 MITEs in the cytochrome P450, ATP-binding cassette transporter (ABC) and esterase genes in whereas for , only one MITE was retrieved in the ABC-C2 gene. These insertions could thus be involved in the insecticide resistance observed in these pests.
ISSN:2075-4450
2075-4450
DOI:10.3390/insects13040313