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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
Oliveira, Sarah G. [1] ; Cabral-de-Mello, Diogo C. [2] ; Moura, Rita C. [3] ; Martins, Cesar [1]
Total Authors: 4
Affiliation:
[1] UNESP Sao Paulo State Univ, Morphol Dept, Biosci Inst, BR-18618970 Botucatu, SP - Brazil
[2] UNESP Sao Paulo State Univ, Dept Biol, Biosci Inst, BR-13506900 Rio Claro, SP - Brazil
[3] UPE Pernambuco State Univ, Inst Biol Sci, Dept Biol, BR-50100130 Recife, PE - Brazil
Total Affiliations: 3
Document type: Journal article
Source: MOLECULAR CYTOGENETICS; v. 6, NOV 29 2013.
Web of Science Citations: 5
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 C(0)t-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 consequence of the absence of recombination in the heterochromatic regions. Our analysis detected high diversification of Mariner sequences during the evolutionary history of the group. Furthermore, comparisons between the coleopterans sequences with other insects and mammals, suggest that the horizontal transfer (HT) could have acted in the spreading of the Mariner in diverse non-related animal groups. (AU)

FAPESP's process: 09/04351-7 - The role of repetitive DNAs in the chromosomal diversification of Phanaeini coleopterans
Grantee:Sárah Gomes de Oliveira
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 08/02830-2 - Genome organization of scarabaeinae coleopterans(Coleoptera, Scarabaeidae, Scarabaeinae) based on repetitive DNA elements analysis
Grantee:César Martins
Support Opportunities: Regular Research Grants
FAPESP's process: 13/04533-3 - Functional analysis of B chromosomes: the cichlid fish Astatotilapia latifasciata as model
Grantee:César Martins
Support Opportunities: Regular Research Grants