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Résumé :
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Chironomus riparius (Insecta: Diptera) is a globally distributed non-biting midge species of considerable ecological and economic importance. In the present study, the genetic diversity, population structure, and demographic history of this species were assessed using the mitochondrial cytochrome c oxidase subunit I (COI) gene sequences. A total of 70 C. riparius larvae representing 11 populations across Türkiye were collected, sequenced, and analysed. Nineteen haplotypes were identified, 14 of which were unique (73.7%) and five shared (26.3%). Analyses of C. riparius populations revealed high haplotype diversity (h = 0.936) coupled with low nucleotide diversity (π = 0.007), significant genetic structuring among populations in Türkiye at several levels (p
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