A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Reference Report

Reference
Citation Nuzhdin, S.V., Mackay, T.F.C. (1994). Direct determination of retrotransposon transposition rates in Drosophila melanogaster.  Genet. Res. (Camb.) 63(2): 139--144. (Export to RIS)
FlyBase ID FBrf0074051
Publication Type Research paper
PubMed ID 8026740
PubMed Abstract Rates of transposition and excision of the Drosophila melanogaster retrotransposon elements mdg3, 297, Doc, roo and copia were estimated directly, by in situ hybridization analysis of their cytological insertion sites in 31 replicates of a highly inbred line that had accumulated spontaneous mutations for approximately 160 generations. Estimated transposition rates of Doc, roo and copia were, respectively, 4.2 x 10(-5), 3.1 x 10(-4) and 1.3 x 10(-3); no transpositions of 297 nor mdg3 were observed. Rates of transposition of copia varied significantly among sublines. Excisions were only observed for roo elements, at a rate of 9.0 x 10(-6) per element per generation. Copy number averaged over these element families increased 5.9%; therefore, in these lines the magnitude of the forces opposing transposable element multiplication were weaker than transposition rates. Estimated total genomic mutation rates from transposition are of the same order as the nucleotide mutation rate in this species.
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Language of Publication English
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Publication Type Journal
Abbreviation Genet. Res. (Camb.)
Title Genetics research
Publication Year 1960-
ISBN/ISSN 0016-6723 1469-5073
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