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Utsunomia R, Pansonato-Alves JC, Scacchetti PC, et al. Scattered organization of the histone multigene family and transposable elements in Synbranchus. Genet Mol Biol. 2013;37(1):30-6doi: 10.1590/s1415-47572014000100007.
Utsunomia, R., Pansonato-Alves, J. C., Scacchetti, P. C., Oliveira, C., & Foresti, F. (2014). Scattered organization of the histone multigene family and transposable elements in Synbranchus. Genetics and molecular biology, 37(1), 30-6. https://doi.org/10.1590/s1415-47572014000100007
Utsunomia, Ricardo, et al. "Scattered organization of the histone multigene family and transposable elements in Synbranchus." Genetics and molecular biology vol. 37,1 (2014): 30-6. doi: https://doi.org/10.1590/s1415-47572014000100007
Utsunomia R, Pansonato-Alves JC, Scacchetti PC, Oliveira C, Foresti F. Scattered organization of the histone multigene family and transposable elements in Synbranchus. Genet Mol Biol. 2014 Mar;37(1):30-6. doi: 10.1590/s1415-47572014000100007. Epub 2013 Feb 28. PMID: 24688288; PMCID: PMC3958323.
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Genet Mol Biol. 2014 Mar;37(1):30-6. doi: 10.1590/s1415-47572014000100007. Epub 2013 Feb 28.

Scattered organization of the histone multigene family and transposable elements in Synbranchus.

Genetics and molecular biology

Ricardo Utsunomia, José Carlos Pansonato-Alves, Priscilla Cardim Scacchetti, Claudio Oliveira, Fausto Foresti

Affiliations

  1. Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, SP, Brazil .

PMID: 24688288 PMCID: PMC3958323 DOI: 10.1590/s1415-47572014000100007

Abstract

The fish species Synbranchus marmoratus is widely distributed throughout the Neotropical region and exhibits a significant karyotype differentiation. However, data concerning the organization and location of the repetitive DNA sequences in the genomes of these karyomorphs are still lacking. In this study we made a physical mapping of the H3 and H4 histone multigene family and the transposable elements Rex1 and Rex3 in the genome of three known S. marmoratus karyomorphs. The results indicated that both histone sequences seem to be linked with one another and are scattered all over the chromosomes of the complement, with a little compartmentalization in one acrocentric pair, which is different from observations in other fish groups. Likewise, the transposable elements Rex1 and Rex3 were also dispersed throughout the genome as small clusters. The data also showed that the histone sites are organized in a differentiated manner in the genomes of S. marmoratus, while the transposable elements Rex1 and Rex3 do not seem to be compartmentalized in this group.

Keywords: FISH; Synbranchidae; histone; retrotransposon

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