Tags

Type your tag names separated by a space and hit enter

Disparate molecular evolution of two types of repetitive DNAs in the genome of the grasshopper Eyprepocnemis plorans.
Heredity (Edinb). 2014 May; 112(5):531-42.H

Abstract

Wide arrays of repetitive DNA sequences form an important part of eukaryotic genomes. These repeats appear to evolve as coherent families, where repeats within a family are more similar to each other than to other orthologous representatives in related species. The continuous homogenization of repeats, through selective and non-selective processes, is termed concerted evolution. Ascertaining the level of variation between repeats is crucial to determining which evolutionary model best explains the homogenization observed for these sequences. Here, for the grasshopper Eyprepocnemis plorans, we present the analysis of intragenomic diversity for two repetitive DNA sequences (a satellite DNA (satDNA) and the 45S rDNA) resulting from the independent microdissection of several chromosomes. Our results show different homogenization patterns for these two kinds of paralogous DNA sequences, with a high between-chromosome structure for rDNA but no structure at all for the satDNA. This difference is puzzling, considering the adjacent localization of the two repetitive DNAs on paracentromeric regions in most chromosomes. The disparate homogenization patterns detected for these two repetitive DNA sequences suggest that several processes participate in the concerted evolution in E. plorans, and that these mechanisms might not work as genome-wide processes but rather as sequence-specific ones.

Authors+Show Affiliations

Departamento de Genética, Universidad de Granada, Granada, Spain.Departamento de Genética, Universidad de Granada, Granada, Spain.Departamento de Biología Experimental, Universidad de Jaén, Jaén, Spain.Departamento de Biología Experimental, Universidad de Jaén, Jaén, Spain.Departamento de Genética, Universidad de Granada, Granada, Spain.Departamento de Genética, Universidad de Granada, Granada, Spain.Departamento de Genética, Universidad de Granada, Granada, Spain.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24346496

Citation

Teruel, M, et al. "Disparate Molecular Evolution of Two Types of Repetitive DNAs in the Genome of the Grasshopper Eyprepocnemis Plorans." Heredity, vol. 112, no. 5, 2014, pp. 531-42.
Teruel M, Ruíz-Ruano FJ, Marchal JA, et al. Disparate molecular evolution of two types of repetitive DNAs in the genome of the grasshopper Eyprepocnemis plorans. Heredity (Edinb). 2014;112(5):531-42.
Teruel, M., Ruíz-Ruano, F. J., Marchal, J. A., Sánchez, A., Cabrero, J., Camacho, J. P., & Perfectti, F. (2014). Disparate molecular evolution of two types of repetitive DNAs in the genome of the grasshopper Eyprepocnemis plorans. Heredity, 112(5), 531-42. https://doi.org/10.1038/hdy.2013.135
Teruel M, et al. Disparate Molecular Evolution of Two Types of Repetitive DNAs in the Genome of the Grasshopper Eyprepocnemis Plorans. Heredity (Edinb). 2014;112(5):531-42. PubMed PMID: 24346496.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Disparate molecular evolution of two types of repetitive DNAs in the genome of the grasshopper Eyprepocnemis plorans. AU - Teruel,M, AU - Ruíz-Ruano,F J, AU - Marchal,J A, AU - Sánchez,A, AU - Cabrero,J, AU - Camacho,J Pm, AU - Perfectti,F, Y1 - 2013/12/18/ PY - 2013/10/03/received PY - 2013/11/14/accepted PY - 2013/12/19/entrez PY - 2013/12/19/pubmed PY - 2014/12/17/medline SP - 531 EP - 42 JF - Heredity JO - Heredity (Edinb) VL - 112 IS - 5 N2 - Wide arrays of repetitive DNA sequences form an important part of eukaryotic genomes. These repeats appear to evolve as coherent families, where repeats within a family are more similar to each other than to other orthologous representatives in related species. The continuous homogenization of repeats, through selective and non-selective processes, is termed concerted evolution. Ascertaining the level of variation between repeats is crucial to determining which evolutionary model best explains the homogenization observed for these sequences. Here, for the grasshopper Eyprepocnemis plorans, we present the analysis of intragenomic diversity for two repetitive DNA sequences (a satellite DNA (satDNA) and the 45S rDNA) resulting from the independent microdissection of several chromosomes. Our results show different homogenization patterns for these two kinds of paralogous DNA sequences, with a high between-chromosome structure for rDNA but no structure at all for the satDNA. This difference is puzzling, considering the adjacent localization of the two repetitive DNAs on paracentromeric regions in most chromosomes. The disparate homogenization patterns detected for these two repetitive DNA sequences suggest that several processes participate in the concerted evolution in E. plorans, and that these mechanisms might not work as genome-wide processes but rather as sequence-specific ones. SN - 1365-2540 UR - https://www.unboundmedicine.com/medline/citation/24346496/Disparate_molecular_evolution_of_two_types_of_repetitive_DNAs_in_the_genome_of_the_grasshopper_Eyprepocnemis_plorans_ L2 - https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24346496/ DB - PRIME DP - Unbound Medicine ER -