ADN satélite en Formícidos: Caracterización de una familia de ADN satélite en Linepithema humile y conservación en otras especies de la subfamilia Dolichoderinae
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2014-09-15
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Jaén: Universidad de Jaén
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[ES]Los estudios sobre el ADN satélite en hormigas (Hymenoptera, Formicidae) son aún muy escasos, a pesar del elevado número de especies que hay en este grupo de insectos, de las que se han descrito hasta el momento más de 12.000 especies. La hormiga argentina, Linepithema humile (subfamilia Dolichoderinae), es una especie invasora de origen sudamericano que actualmente está ampliamente distribuida en la Península Ibérica. El objetivo de este trabajo es iniciar el análisis del ADN satélite en esta especie. En este estudio se ha caracterizado una familia de ADN satélite que hemos denominado G1-71. Los datos indican que existe en muy baja proporción en el genoma de L. humile. Los ADNs satélite analizados hasta el momento en hormigas son básicamente específicos de género, sin embargo la familia de ADN satélite G1-71 se ha encontrado también en especies de otros géneros de la subfamilia Dolichoderinae, incluso en especies de otras subfamilias de hormiga, tales como Myrmicinae y Formicinae. Se estima que la familias Myrmicinae y Formicinae se separaron de Dolichoderinae hace 120 millones de años, por tanto G1-71 sería el primer ADN satélite ancestral descrito en hormigas.
[EN]Studies of satellite DNA in ants (Hymenoptera, Formicidae) are still scarce, although there are a lot of numbers of species in this group of insects, which have been described to date more than 12,000 species. The Argentina ant, Linepithema humile (Dolichoderinae subfamily), is an invasive species from South America that is currently widely distributed throughout the Iberian Peninsula. The aim of this work is to start the analysis of satellite DNA in this species. In this study we have characterized a family of satellite DNA we have called G1-71. Data suggest that there is a very low proportion in the genome of L. humile. The satellite DNAs analyzed to date are basically ants gender specific, but the family of G1-71 satellite DNA has also been found in species of other genera of the subfamily Dolichoderinae, including other species of ant subfamilies, such as Myrmicinae and Formicinae. Is estimated that Myrmicinae and Formicinae subfamilies were separated from Dolichoderinae 120 million years ago. Therefore, G1-71 would be the first satellite ancestral DNA described in ants.
[EN]Studies of satellite DNA in ants (Hymenoptera, Formicidae) are still scarce, although there are a lot of numbers of species in this group of insects, which have been described to date more than 12,000 species. The Argentina ant, Linepithema humile (Dolichoderinae subfamily), is an invasive species from South America that is currently widely distributed throughout the Iberian Peninsula. The aim of this work is to start the analysis of satellite DNA in this species. In this study we have characterized a family of satellite DNA we have called G1-71. Data suggest that there is a very low proportion in the genome of L. humile. The satellite DNAs analyzed to date are basically ants gender specific, but the family of G1-71 satellite DNA has also been found in species of other genera of the subfamily Dolichoderinae, including other species of ant subfamilies, such as Myrmicinae and Formicinae. Is estimated that Myrmicinae and Formicinae subfamilies were separated from Dolichoderinae 120 million years ago. Therefore, G1-71 would be the first satellite ancestral DNA described in ants.