Journal
EUROPEAN JOURNAL OF ENTOMOLOGY
Volume 113, Issue -, Pages 482-488Publisher
CZECH ACAD SCI, INST ENTOMOLOGY
DOI: 10.14411/eje.2016.063
Keywords
Lepidoptera; Pyralidae; Ephestia kuehniella; mitogenome; Mediterranean flour moth; phylogeny; numts; W chromosome
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The Mediterranean flour moth, Ephestia kuehniella is a widespread pest of stored products and a classical object in experimental biology. In the present study, we determined its complete mitochondrial genome sequence. The genome is circular, consists of 15,327 bp and comprises 13 protein-coding, 2 rRNA-and 22 tRNA-coding genes in an order typical for the Ditrysia clade of the order Lepidoptera. A phylogenetic study of the Lepidoptera based on complete mitochondrial genomes places E. kuehniella correctly in the family Pyralidae and supports major lepidopteran taxa as phylogenetic clades. The W chromosome of E. kuehniella is an exceptionally rich reservoir of originally mitochondrial sequences (numts). Around 0.7% of the W DNA was found to be of mitochondrial origin, 83% of the mitogenome sequence was represented between 1-11 x in the W chromosome. Phylogenetic analysis further revealed that these numts are an evolutionary recent acquisition of the W chromosome.
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