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Chromosomal distribution of microsatellite repeats in Amazon cichlids genome (Pisces, Cichlidae)
Abstract. Fish of the family Cichlidae are recognized as an excellent model for evolutionary studies because of their morphological and behavioral adaptations to a wide diversity of explored ecological niches. In addition, the family has a dynamic genome with variable structure, composition and kary...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Pensoft Publishers
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4698573/ https://www.ncbi.nlm.nih.gov/pubmed/26753076 http://dx.doi.org/10.3897/CompCytogen.v9i4.5582 |
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author | Schneider, Carlos Henrique Gross, Maria Claudia Terencio, Maria Leandra de Tavares, Édika Sabrina Girão Mitozo Martins, Cesar Feldberg, Eliana |
author_facet | Schneider, Carlos Henrique Gross, Maria Claudia Terencio, Maria Leandra de Tavares, Édika Sabrina Girão Mitozo Martins, Cesar Feldberg, Eliana |
author_sort | Schneider, Carlos Henrique |
collection | PubMed |
description | Abstract. Fish of the family Cichlidae are recognized as an excellent model for evolutionary studies because of their morphological and behavioral adaptations to a wide diversity of explored ecological niches. In addition, the family has a dynamic genome with variable structure, composition and karyotype organization. Microsatellites represent the most dynamic genomic component and a better understanding of their organization may help clarify the role of repetitive DNA elements in the mechanisms of chromosomal evolution. Thus, in this study, microsatellite sequences were mapped in the chromosomes of Cichla monoculus Agassiz, 1831, Pterophyllum scalare Schultze, 1823, and Symphysodon discus Heckel, 1840. Four microsatellites demonstrated positive results in the genome of Cichla monoculus and Symphysodon discus, and five demonstrated positive results in the genome of Pterophyllum scalare. In most cases, the microsatellite was dispersed in the chromosome with conspicuous markings in the centromeric or telomeric regions, which suggests that sequences contribute to chromosome structure and may have played a role in the evolution of this fish family. The comparative genome mapping data presented here provide novel information on the structure and organization of the repetitive DNA region of the cichlid genome and contribute to a better understanding of this fish family’s genome. |
format | Online Article Text |
id | pubmed-4698573 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Pensoft Publishers |
record_format | MEDLINE/PubMed |
spelling | pubmed-46985732016-01-08 Chromosomal distribution of microsatellite repeats in Amazon cichlids genome (Pisces, Cichlidae) Schneider, Carlos Henrique Gross, Maria Claudia Terencio, Maria Leandra de Tavares, Édika Sabrina Girão Mitozo Martins, Cesar Feldberg, Eliana Comp Cytogenet Research Articles Abstract. Fish of the family Cichlidae are recognized as an excellent model for evolutionary studies because of their morphological and behavioral adaptations to a wide diversity of explored ecological niches. In addition, the family has a dynamic genome with variable structure, composition and karyotype organization. Microsatellites represent the most dynamic genomic component and a better understanding of their organization may help clarify the role of repetitive DNA elements in the mechanisms of chromosomal evolution. Thus, in this study, microsatellite sequences were mapped in the chromosomes of Cichla monoculus Agassiz, 1831, Pterophyllum scalare Schultze, 1823, and Symphysodon discus Heckel, 1840. Four microsatellites demonstrated positive results in the genome of Cichla monoculus and Symphysodon discus, and five demonstrated positive results in the genome of Pterophyllum scalare. In most cases, the microsatellite was dispersed in the chromosome with conspicuous markings in the centromeric or telomeric regions, which suggests that sequences contribute to chromosome structure and may have played a role in the evolution of this fish family. The comparative genome mapping data presented here provide novel information on the structure and organization of the repetitive DNA region of the cichlid genome and contribute to a better understanding of this fish family’s genome. Pensoft Publishers 2015-09-14 /pmc/articles/PMC4698573/ /pubmed/26753076 http://dx.doi.org/10.3897/CompCytogen.v9i4.5582 Text en Carlos Henrique Schneider, Maria Claudia Gross, Maria Leandra Terencio, Édika Sabrina Girão Mitozo de Tavares, Cesar Martins, Eliana Feldberg http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Articles Schneider, Carlos Henrique Gross, Maria Claudia Terencio, Maria Leandra de Tavares, Édika Sabrina Girão Mitozo Martins, Cesar Feldberg, Eliana Chromosomal distribution of microsatellite repeats in Amazon cichlids genome (Pisces, Cichlidae) |
title | Chromosomal distribution of microsatellite repeats in Amazon cichlids genome (Pisces, Cichlidae) |
title_full | Chromosomal distribution of microsatellite repeats in Amazon cichlids genome (Pisces, Cichlidae) |
title_fullStr | Chromosomal distribution of microsatellite repeats in Amazon cichlids genome (Pisces, Cichlidae) |
title_full_unstemmed | Chromosomal distribution of microsatellite repeats in Amazon cichlids genome (Pisces, Cichlidae) |
title_short | Chromosomal distribution of microsatellite repeats in Amazon cichlids genome (Pisces, Cichlidae) |
title_sort | chromosomal distribution of microsatellite repeats in amazon cichlids genome (pisces, cichlidae) |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4698573/ https://www.ncbi.nlm.nih.gov/pubmed/26753076 http://dx.doi.org/10.3897/CompCytogen.v9i4.5582 |
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