Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887)

Braga Ribeiro, Leila; Moraes-Neto, Américo; Artoni, Roberto Ferreira; Matoso, D. A.; Feldberg, Eliana

Artigo

Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887)

Some species of Characiformes are known for their high economic value, such as Colossoma macropomum and Piaractus mesopotamicus, and are used in aquaculture programs to generate hybrid tambacu (interbreeding of C. macropomum females and P. mesopotamicus males). The present work aimed to investigate...

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Autor principal:	Braga Ribeiro, Leila
Outros Autores:	Moraes-Neto, Américo, Artoni, Roberto Ferreira, Matoso, D. A., Feldberg, Eliana
Grau:	Artigo
Idioma:	English
Publicado em:	Zebrafish 2020
Assuntos:	Fish Protein Ribosome Dna Animals Characiformes Chromosomal Mapping Female Gene Expression Regulation Genetics Hybridization Karyotype Male Metabolism Nucleotide Repeat Animal Characiformes Chromosome Mapping Ribosomal Dna Female Fish Proteins Gene Expression Regulation Hybridization, Genetic Karyotype Male Repetitive Sequences, Nucleic Acid
Acesso em linha:	https://repositorio.inpa.gov.br/handle/1/17128

id	oai:repositorio:1-17128
recordtype	dspace
spelling	oai:repositorio:1-17128 Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887) Braga Ribeiro, Leila Moraes-Neto, Américo Artoni, Roberto Ferreira Matoso, D. A. Feldberg, Eliana Fish Protein Ribosome Dna Animals Characiformes Chromosomal Mapping Female Gene Expression Regulation Genetics Hybridization Karyotype Male Metabolism Nucleotide Repeat Animal Characiformes Chromosome Mapping Ribosomal Dna Female Fish Proteins Gene Expression Regulation Hybridization, Genetic Karyotype Male Repetitive Sequences, Nucleic Acid Some species of Characiformes are known for their high economic value, such as Colossoma macropomum and Piaractus mesopotamicus, and are used in aquaculture programs to generate hybrid tambacu (interbreeding of C. macropomum females and P. mesopotamicus males). The present work aimed to investigate the location of the Rex3 and Rex6 transposable elements in the hybrid and in the species, in addition to checking the genomic organization of the 18S and 5S rDNA in tambacu. The diploid number found for the hybrid was equal to 54 chromosomes, with heterochromatic blocks distributed mainly in the centromeric portions. The chromosomal location of the mobile elements Rex3 and Rex6 in C. macropomum, P. mesopotamicus, and in the hybrid between these species enabled knowledge expansion and the generation of data on such mobile elements. In addition, the location of such elements is not related to the distribution of ribosomal DNA sites. The mapping of the 18S rDNA was shown to be effective in cytogenetic identification of the hybrid tambacu, allowing for differentiation from the parent species and from the hybrid between C. macropomum and the other species from Piaractus (P. brachypomus). 2020-06-15T21:39:09Z 2020-06-15T21:39:09Z 2017 Artigo https://repositorio.inpa.gov.br/handle/1/17128 10.1089/zeb.2016.1378 en Volume 14, Número 2, Pags. 155-160 Restrito Zebrafish
institution	Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection	INPA-RI
language	English
topic	Fish Protein Ribosome Dna Animals Characiformes Chromosomal Mapping Female Gene Expression Regulation Genetics Hybridization Karyotype Male Metabolism Nucleotide Repeat Animal Characiformes Chromosome Mapping Ribosomal Dna Female Fish Proteins Gene Expression Regulation Hybridization, Genetic Karyotype Male Repetitive Sequences, Nucleic Acid
spellingShingle	Fish Protein Ribosome Dna Animals Characiformes Chromosomal Mapping Female Gene Expression Regulation Genetics Hybridization Karyotype Male Metabolism Nucleotide Repeat Animal Characiformes Chromosome Mapping Ribosomal Dna Female Fish Proteins Gene Expression Regulation Hybridization, Genetic Karyotype Male Repetitive Sequences, Nucleic Acid Braga Ribeiro, Leila Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887)
topic_facet	Fish Protein Ribosome Dna Animals Characiformes Chromosomal Mapping Female Gene Expression Regulation Genetics Hybridization Karyotype Male Metabolism Nucleotide Repeat Animal Characiformes Chromosome Mapping Ribosomal Dna Female Fish Proteins Gene Expression Regulation Hybridization, Genetic Karyotype Male Repetitive Sequences, Nucleic Acid
description	Some species of Characiformes are known for their high economic value, such as Colossoma macropomum and Piaractus mesopotamicus, and are used in aquaculture programs to generate hybrid tambacu (interbreeding of C. macropomum females and P. mesopotamicus males). The present work aimed to investigate the location of the Rex3 and Rex6 transposable elements in the hybrid and in the species, in addition to checking the genomic organization of the 18S and 5S rDNA in tambacu. The diploid number found for the hybrid was equal to 54 chromosomes, with heterochromatic blocks distributed mainly in the centromeric portions. The chromosomal location of the mobile elements Rex3 and Rex6 in C. macropomum, P. mesopotamicus, and in the hybrid between these species enabled knowledge expansion and the generation of data on such mobile elements. In addition, the location of such elements is not related to the distribution of ribosomal DNA sites. The mapping of the 18S rDNA was shown to be effective in cytogenetic identification of the hybrid tambacu, allowing for differentiation from the parent species and from the hybrid between C. macropomum and the other species from Piaractus (P. brachypomus).
format	Artigo
author	Braga Ribeiro, Leila
author2	Moraes-Neto, Américo Artoni, Roberto Ferreira Matoso, D. A. Feldberg, Eliana
author2Str	Moraes-Neto, Américo Artoni, Roberto Ferreira Matoso, D. A. Feldberg, Eliana
title	Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887)
title_short	Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887)
title_full	Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887)
title_fullStr	Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887)
title_full_unstemmed	Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887)
title_sort	chromosomal mapping of repetitive sequences (rex3, rex6, and rdna genes) in hybrids between colossoma macropomum (cuvier, 1818) and piaractus mesopotamicus (holmberg, 1887)
publisher	Zebrafish
publishDate	2020
url	https://repositorio.inpa.gov.br/handle/1/17128
_version_	1787142951316488192
score	11.674752

Chromosomal Mapping of Repetitive Sequences (Rex3, Rex6, and rDNA Genes) in Hybrids Between Colossoma macropomum (Cuvier, 1818) and Piaractus mesopotamicus (Holmberg, 1887)

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