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Neotropical Entomology

versión impresa ISSN 1519-566X


MARCON, HS et al. New mariner elements in Anastrepha species (Diptera: Tephritidae). Neotrop. entomol. [online]. 2011, vol.40, n.5, pp. 568-574. ISSN 1519-566X.

Mariner-like elements (MLE) are members from class II of transposable elements also known as DNA transposons. These elements have a wide distribution among different groups of organisms, including insects, which can be explained by horizontal and vertical gene-transfer. MLE families have been described in tephritid flies and other genera. During screening for Wolbachia bacteria in fruit flies of the genus Anastrepha, we discovered two sequences related to mariner-like elements. Based on these sequences, we designed primers that allowed us to isolate and characterize two new mariner-like elements (Anmar1 and Anmar2) in Anastrepha flies. These elements, which belong to the mellifera and rosa subfamilies have a low nucleotide diversity, and are probably inactive and acquired by vertical transfer. This is the first report of mariner-like transposons in flies found in South America.

Palabras clave : Fruit fly; mellifera; tephritid; transposon; rosa.

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