Dtak\R1-element

General Information
Symbol	Dtak\R1-element	Species	D.takahashii
Name	R1 rDNA element	FlyBase ID	FBte0001071
Feature type	natural transposable element
Recent Updates
Description	What does this section display? This section contains items that were added to this record for each release. It currently only tracks new links between this FlyBase report and other FlyBase data classes (e.g. genes, references, stocks) or controlled vocabulary terms (e.g. GO, anatomy terms). What does this section not display? This section does not currently display links that were removed or gene model changes.
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FB2013_03
FB2013_02
All updates	Click here to see a list of all updates to this record from FB2010_08 and on.
Sequences & Components
Complete element (bp)
Terminal repeat (bp)
Reference sequence	transposon_sequence_set.embl.txt.gz
Component genes	Dtak\R1-element\ORF2
Sequence Accessions
	DDBJ/EMBL/GenBank U23195 U23197 U23198 U23204
Sequence Ontology (SO)
Transposon type	non_LTR_retrotransposon transposable_element
Insertions & Copy Number
Copy number and comments
Search for	All insertions of this transposon Insertions in the sequenced genome Insertions in other genomes
Target Site Duplication
Size (bp)
Orthologs
Curated drosophilid orthologs	Dmel\R1-element
Comments
	Elements R1 and R2 are subject to the same recombinational forces that give rise to the concerted evolution of the rDNA units. Molecular phylogenetic analysis of elements from 16 Drosophila species suggests these elements have been stable components of the rDNA locus for the 50-70 million year history of the Drosophila genus. (Eickbush et al., 1997) A Dtak\R1-element has been sequenced and compared with the R1-elements of a number of other Drosophila species. Phylogenetic analysis suggests that the R1-elements have been vertically transmitted since the inception of the Drosophila genus. (Lathe et al., 1995)
Other Information
Etymology

External Crossreferences
Sequence Crossreferences
	DDBJ/EMBL/GenBank U23195 U23197 U23198 U23204
Other Crossreferences

Synonyms & Secondary IDs ( 2 )
Reported As
Symbol Synonym	Dtak\R1-element
Name Synonym	R1 rDNA element
Secondary FlyBase IDs
	FBgn0013903
References ( 5 )
Research paper	Gentile et al., 2001, Mol. Biol. Evol. 18(2): 235--245 Multiple lineages of R1 retrotransposable elements can coexist in the rDNA loci of Drosophila. [FBrf0132406] Biemont and Cizeron, 1999, Genetica 105(1): 43--62 Distribution of transposable elements in Drosophila species. [FBrf0111330] Eickbush et al., 1997, Genetica 100(1-3): 49--61 Evolution of R1 and R2 in the rDNA units of the genus Drosophila. [FBrf0099794] Lathe et al., 1995, Mol. Biol. Evol. 12(6): 1094--1105 Evolutionary stability of the R1 retrotransposable element in the genus Drosophila. [FBrf0084110]
Letter	Burke et al., 1998, Nature 392(6672): 141--142 Are retrotransposons long-term hitchhikers? [FBrf0102107]