The distribution and abundance of mariner-like elements in the melanogaster species subgroups suggests that the predominant mode of evolution of mariner-like elements is stochastic loss and vertical inactivation, balanced against occasional reinvasion of lineages by horizontal transmission.
Distribution of the mariner element among Drosophilidae species is investigated using three different techniques (squash blots, Southern blots and PCR amplification). Results demonstrate the distribution of mariner is not uniform and does not follow the phylogeny of the host species. Analysis of geographical distributions of the element shows it is mainly present in Asia and Africa.
The distribution and abundance of mariner-like elements in the melanogaster species subgroups suggests that the predominant mode of evolution of mariner-like elements is stochastic loss and vertical inactivation, balanced against occasional reinvasion of lineages by horizontal transmission.
Phylogenetic analysis indicates that relatively recent horizontal transfer of a Dmau\mariner element has occurred in D.ananassae.
Distribution of the mariner element among Drosophilidae species is investigated using three different techniques (squash blots, Southern blots and PCR amplification). Results demonstrate the distribution of mariner is not uniform and does not follow the phylogeny of the host species. Analysis of geographical distributions of the element shows it is mainly present in Asia and Africa.