Evolution of the transposable element mariner in the Drosophila melanogaster species group
- 1 January 1992
- journal article
- Published by Springer Nature in Genetica
- Vol. 86 (1), 37-46
- https://doi.org/10.1007/bf00133709
Abstract
The population biology and molecular evolution of the transposable element mariner has been studied in the eight species of the melanogaster subgroup of the Drosophila subgenus Sophophora. The element occurs in D. simulans, D. mauritiana, D. sechellia, D. teissieri, and D. yakuba, but is not found in D. melanogaster, D. erecta, or D. orena. Sequence comparisons suggest that the mariner element was present in the ancestor of the species subgroup and was lost in some of the lineages. Most species contain both active and inactive mariner elements. A deletion of most of the 3′ end characterizes many elements in D. teissieri, but in other species the inactive elements differ from active ones only by simple nucleotide substitutions or small additions/deletions. Active mariner elements from all species are quite similar in nucleotide sequence, although there are some-species-specific differences. Many, but not all, of the inactive elements are also quite closely related. The genome of D. mauritiana contains 20–30 copies of mariner, that of D. simulans 0–10, and that of D. sechellia only two copies (at fixed positions in the genome). The mariner situation in D. sechellia may reflect a reduced effective population size owing to the restricted geographical range of this species and its ecological specialization to the fruit of Morinda citrifolia.Keywords
This publication has 42 references indexed in Scilit:
- Regulation of Drosophila P element transpositionTrends in Genetics, 1991
- Active mariner transposable elements are widespread in natural populations ofDrosophila simulansProceedings Of The Royal Society B-Biological Sciences, 1990
- Low allozyme and mtDNA variability in the island endemic speciesDrosophila sechelia (D. melanogaster complex)Cellular and Molecular Life Sciences, 1990
- POPULATION GENETICS AND EVOLUTION OF SPECIES RELATED TO DROSOPHILA MELANOGASTERAnnual Review of Genetics, 1989
- Mutation rates in hybrids between sibling species of DrosophilaHeredity, 1989
- Micropia: a retrotransposon of Drosophila combining structural features of DNA viruses, retroviruses and non-viral transposable elementsJournal of Molecular Biology, 1988
- Retrotransposon-like sequences are expressed in Y chromosomal lampbrush loops of Drosophila hydeiJournal of Molecular Biology, 1988
- Mitochondrial DNA evolution in themelanogaster species subgroup ofDrosophilaJournal of Molecular Evolution, 1986
- Apparent absence of transposable elements related to the P elements of D. melanogaster in other species of DrosophilaNature, 1984
- Evolution ofDrosophila repetitive-dispersed DNAJournal of Molecular Evolution, 1983