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Citation	Costas, J., Valade, E., Naveira, H. (2001). Structural Features of the mdg1 Lineage of the Ty3/gypsy Group of LTR Retrotransposons Inferred from the Phylogenetic Analyses of Its Open Reading Frames. J. molec. Evol. 53(3): 165--171.
FlyBase ID	FBrf0138461
Type of publication	Research paper
Offprint Available	Yes
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PubMed ID	11523003
PubMed Abstract	The increasing amount of data generated in recent years has opened the way to exhaustive studies of the relationships among different members of the Ty3/gypsy group of LTR retrotransposons, a widespread group of eukaryotic transposable elements. Former research led to the identification of several independent lineages within this group. One of the worse represented of them is that of mdg1, integrated so far only by the Drosophila retrotransposons mdg1 and 412. Our exhaustive database searches indicate the existence of three other Drosophila members of this lineage. Two of them correspond to elements already known, namely, Stalker and blood, but the third one is a new element, which we have called Pilgrim. This element is well represented within the D. melanogaster genome, as revealed by our Southern blot analysis of different strains. The case of Stalker is particularly remarkable, since its phylogenetic relationships clearly point to the mosaic origin of its genome. Finally, our analysis of the evolution of a small ORF preserved within the 5' leader region of these elements indicates different evolutionary rates, presumably as a result of distinct selective constraints.
Biosis	2001.454988
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Language of publication	English
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Abbreviation	J. molec. Evol.
Title	Journal of Molecular Evolution
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Volume range	1-
Year range	1971-
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Publisher	Springer Verlag
Place of publication	New York
Language of publication	English
ISBN/ISSN	0022-2844
CODEN	JMEVAU
Data from Reference
Genes (15)
	412\ORF1 412\ORF2 412\sORF2 Stalker\ORF1 Stalker\ORF2 Stalker\sORF Tabor\gag Tabor\pol Tabor\sORF blood\ORF1 blood\ORF2 blood\sORF mdg1\ORF1 mdg1\ORF2 mdg1\sORF2
Natural transposons (5)
	412 Stalker Tabor blood mdg1