ArticleGenetics2003
R1 and R2 retrotransposition and deletion in the rDNA loci on the X and Y chromosomes of Drosophila melanogaster.
Article in Genetics, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 18 citations in OpenAlex.
- The Dynamic Interplay Between Ribosomal DNA and Transposable Elements: A Perspective From Genomics and Cytogenetics.Molecular biology and evolution · 2024Article
- Mechanisms of rDNA Copy Number Maintenance.Trends in genetics : TIG · 2019Review
- Integration, Regulation, and Long-Term Stability of R2 Retrotransposons.Microbiology spectrum · 2015Review
- Reduced rDNA copy number does not affect "competitive" chromosome pairing in XYY males of Drosophila melanogaster.G3 (Bethesda, Md.) · 2014Article
- Condensin II subunit dCAP-D3 restricts retrotransposon mobilization in Drosophila somatic cells.PLoS genetics · 2013Article
- R2 dynamics in Triops cancriformis (Bosc, 1801) (Crustacea, Branchiopoda, Notostraca): turnover rate and 28S concerted evolution.Heredity · 2011Article
- The non-LTR retrotransposon R2 in termites (Insecta, Isoptera): characterization and dynamics.Journal of molecular evolution · 2011Article
- Changes in chromatin structure correlate with transcriptional activity of nucleolar rDNA in polytene chromosomes.Chromosoma · 2009Article
- Review
- Monitoring the mode and tempo of concerted evolution in the Drosophila melanogaster rDNA locus.Genetics · 2005Article
- Characterization of active R2 retrotransposition in the rDNA locus of Drosophila simulans.Genetics · 2005Article
- Isolation and mapping of telomeric pentanucleotide (TAACC)n repeats of the Pacific whiteleg shrimp, Penaeus vannamei, using fluorescence in situ hybridization.Marine biotechnology (New York, N.Y.)Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The non-LTR retrotransposons R1 and R2 insert into the 28S rRNA genes of arthropods. Comparisons among Drosophila lineages have shown that these elements are vertically inherited, while studies within species have indicated a rapid turnover of individual copies (elimination of old copies and the insertion of new copies). To better understand the turnover of R1 and R2, 200 retrotranspositions and nearly 100 eliminations have been scored in the Harwich mutation-accumulation lines of Drosophila melanogaster. Because the rDNA arrays in D. melanogaster are present on the X and Y chromosomes and no exchanges were detected in these lines, it was possible to show that R1 retrotranspositions occur predominantly in the male germ line, while R2 retrotranspositions were more evenly divided between the germ lines of both sexes. The rate of elimination of elements from the Y rDNA array was twice that of the X rDNA array with both chromosomal loci containing regions where the rate of elimination was on average eight times higher. Most R1 and R2 eliminations appear to occur by large intrachromosomal events (i.e., loop-out events) that involve multiple rDNA units. These findings are interpreted in light of the known abundance of R1 and R2 elements in the X and Y rDNA loci of D. melanogaster.
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