Chromosomal organization and evolutionary history of Mariner transposable elements in Scarabaeinae coleopterans.

ABSTRACT:

Background

With the aim to increase the knowledge on the evolution of coleopteran genomes, we investigated through cytogenetics and nucleotide sequence analysis Mariner transposons in three Scarabaeinae species (Coprophanaeus cyanescens, C. ensifer and Diabroctis mimas).

Results

The cytogenetic mapping revealed an accumulation of Mariner transposon in the pericentromeric repetitive regions characterized as rich in heterochromatin and C0t-1 DNA fraction (DNA enriched with high and moderately repeated sequences). Nucleotide sequence analysis of Mariner revealed the presence of two major groups of Mariner copies in the three investigated coleoptera species.

Conclusions

The Mariner is accumulated in the centromeric area of the coleopteran chromosomes probably as a consequ

SUBMITTER: Oliveira SG 

PROVIDER: S-EPMC3906913 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature