caa a22 4500 386393338 CHVBK 20180307112127.0 cr unu---uuuuu 161130e198910 xx s 000 0 eng 10.1017/S0016672300028470 doi S0016672300028470 pii (NATIONALLICENCE)cambridge-10.1017/S0016672300028470 Somatic reversion of P transposable element insertion mutations in the singed locus of Drosophila melanogaster requiring specific P insertions and a trans- acting factor [Elektronische Daten] Destabilization in somatic cells of P-element insertions in the X-linked singed gene of Drosophila melanogaster has been studied. We have shown that some but not all unstable P-element insertions in singed can form mosaics. The cause of this variation is not clear from studies of the restriction maps of the mutations tested. The transposable element movements occur early in development and require, in addition to an appropriate P-element insertion in singed, a trans-acting maternal effect component. Movements appear to occur preferentially in attached-X stocks. However, the maternal effect component maps to the central region of chromosome 2. Copyright © Cambridge University Press 1989 Brookfield John F. Y. Department of Genetics, University of Nottingham, Queens Medical Centre, Nottingham NG7 2UH, UK Lewis Alan P. Department of Genetics, University of Nottingham, Queens Medical Centre, Nottingham NG7 2UH, UK Genetical Research Cambridge University Press 54/2(1989-10), 101-112 0016-6723 54:2<101 1989 54 GRH https://doi.org/10.1017/S0016672300028470 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0016672300028470 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Brookfield John F. Y. Department of Genetics, University of Nottingham, Queens Medical Centre, Nottingham NG7 2UH, UK NATIONALLICENCE 700 1- Lewis Alan P. Department of Genetics, University of Nottingham, Queens Medical Centre, Nottingham NG7 2UH, UK NATIONALLICENCE 773 0- Genetical Research Cambridge University Press 54/2(1989-10), 101-112 0016-6723 54:2<101 1989 54 GRH CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge