| Citation |
Brunet, F., Godin, F., David, J.R., Capy, P. (1994). The mariner transposable element in the Drosophilidae family. Heredity 73(4): 377--385.
|
| PubMed Abstract |
The distribution of the mariner transposable element among Drosophilidae species was investigated using three different techniques,
i.e. squash blots, Southern blots and PCR amplification, using two sets of primers (one corresponding to the Inverted Terminal
Repeats and the other to two conserved regions of the putative transposase). Our results and those of others show that the
distribution of mariner is not uniform and does not follow the phylogeny of the host species. An analysis of geographical
distribution, based on endemic species, shows that mariner is mainly present in Asia and Africa. At least two hypotheses may
be proposed to explain the specific and geographical distributions of this element. Firstly, they may be the results of several
horizontal transmissions between Drosophila species and/or between Drosophila species and one or several donor species outside
the Drosophilidae family. Secondly, these particular distributions may correspond to the evolution of the mariner element
from an ancestral copy which was present in the ancestor of the Drosophilidae family.
|
Home
Associated Information