Abstract
Mobile genetic elements have a significant impact on the evolution of the genomes of living organisms. They are divided into two classes—retrotransposons and DNA transposons. ITm transposons are one of the widespread groups of DNA transposons and are found in almost all organisms. In this work, we investigated the abundance, structure, and evolution of elements with the DD46E catalytic domain that is unusually long for ITm transposons. These elements were found only in the subtype Asterozoa. Their copy number, structure, and possible functionality of transposase, as well as phylogenetic relationships to other representatives of ITm transposons, were studied. It was shown that the group of transposons that we discovered, which we named Zvezda, is a subfamily of Tc1-like transposons.
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The study of MGE Zvezda was performed within the framework of the State Assignment of the Institute of Marine Biological Research “Functional, Metabolic, and Toxicological Aspects of the Existence of Aquatic Organisms and Their Populations in Biotopes with Different Physicochemical Regimes,” state registration no. 121041400077-1.
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Puzakova, L.V., Puzakov, M.V. Zvezda—A New Subfamily of Tc1-Like Transposons in Asterozoa Genomes. Russ J Genet 58, 132–142 (2022). https://doi.org/10.1134/S1022795422010094
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DOI: https://doi.org/10.1134/S1022795422010094