Genomic distribution of copia-like transposable elements in somatic tissues and during development of Drosophila melanogaster |
| |
| Authors: | Carmen Di Franco Claudio Pisano Patrizio Dimitri Silvia Gigliotti Nikolaj Junakovic |
| |
| Institution: | (1) Centro per lo Studio degli Acidi Nucleici C.N.R., Università  La Sapienza , Piazzale A. Moro 5, I-00185 Roma, Italy;(2) Centro di Genetica Evoluzionistica C.N.R., Università La Sapienza, Piazzale A. Moro 5, I-00185 Roma, Italy;(3) Dipartimento di Genetica e Biologia Molecolare, Università La Sapienza, Piazzale A. Moro 5, I-00185 Roma, Italy;(4) International Institute of Genetics and Biophysics, via Marconi 12, Napoli, Italy |
| |
| Abstract: | The genomic distribution of elements of the copia, 412, B 104, mdg 1, mdg 4 and 1731 transposon families was compared by the Southern technique in DNA preparations extracted from brains, salivary glands and adult flies of two related Drosophila lines. The copia, 412 and mdg 1 sequences were also probed in DNA from sperm, embryos, and 1st and 2nd instar larvae. The homogeneity of the patterns observed shows that somatic transposition is unlikely to occur frequently. A correlation between mobility and the euchromatic or heterochromatic location of transposable elements is discussed. In addition, an explanation of the variable band intensities of transposable elements in Southern autoradiographs is proposed. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
