Retrotransposon Gtwin specific for the Drosophila melanogaster subgroup

Котнова, А. П.; Feoktistova, M. A.; Глухов, И. А.; Salenko, V. B.; Lyubomirskaya, N. V.; Kim, A. I.; Ilyin, Yu. V.

doi:10.1134/s1607672906040119

Cited by 2 publications

(2 citation statements)

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“…The data currently available show the restricted distribution of this element in the melanogaster subgroup species (Kotnova et al ., 2007; Ludwig & Loreto, 2007). The gag , pol and env genes of gtwin show 53, 76, and 77% identity, respectively, in amino acid sequences with the gypsy retrotransposon; however, the LTR sequences of these two elements show little similarity (Kotnova et al ., 2005). According to Kotnova et al .…”

Section: Discussionmentioning

confidence: 99%

“…The data currently available show the restricted distribution of this element in the melanogaster subgroup species (Kotnova et al, 2007;Ludwig & Loreto, 2007). The gag, pol and env genes of gtwin show 53, 76, and 77% identity, respectively, in amino acid sequences with the gypsy retrotransposon; however, the LTR sequences of these two elements show little similarity (Kotnova et al, 2005). According to Kotnova et al (2005), the gtwin may have just recently acquired its env gene via recombination with gypsy, as these elements are largely similar in this gene, which is not expected for the comparisons of different retroelements.…”

Section: Errantivirus Diversity In the Genomesmentioning

confidence: 99%

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Multiple invasions of Errantivirus in the genus Drosophila

Ludwig

Valente

Loreto

2008

Insect Molecular Biology

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Aiming to contribute to the knowledge of the evolutionary history of Errantivirus, a phylogenetic analysis of the env gene sequences of Errantivirus gypsy, gtwin, gypsy2, gypsy3, gypsy4 and gypsy6 was carried out in 33 Drosophilidae species. Most sequences were obtained from in silico searches in the Drosophila genomes. The complex evolutionary pattern reported by other authors for the gypsy retroelement was also observed in the present study, including vertical transmission, ancestral polymorphism, stochastic loss and horizontal transfer. Moreover, the elements gypsy2, gypsy3, gypsy4 and gypsy6 were shown to have followed an evolutionary model that is similar to gypsy. Fifteen new possible cases of horizontal transfer were suggested. The infectious potential of these elements may help elucidate the evolutionary scenario described in the present study.

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