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metadata.dc.type: Artigo de Periódico
Issue Date: Dec-2014
metadata.dc.creator: PAIM, Fabilene Gomes
BRANDÃO, José Henrique Souza Galdino
SAMPAIO, Maria Iracilda da Cunha
AFFONSO, Paulo Roberto Antunes de Mello
BEZERRA, Débora Diniz
Title: Genetic identification of bucktooth parrotfish Sparisoma radians (Valenciennes, 1840) (Labridae, Scarinae) by chromosomal and molecular markers
Citation: PAIM, Fabilene Gomes et al. Genetic identification of bucktooth parrotfish Sparisoma radians (Valenciennes, 1840) (Labridae, Scarinae) by chromosomal and molecular markers. Genetics and Molecular Biology, Ribeirão Preto, v. 37, n. 4, p. 646-651, dez. 2014. Disponível em: <>. Acesso em: 26 ago. 2015. <>.
Abstract: Parrotfishes (Labridae, Scarinae) comprise a large marine fish group of difficult identification, particularly during juvenile phase when the typical morphology and coloration of adults are absent. Therefore, the goal of this study was to test cytogenetic markers and DNA barcoding in the identification of bucktooth parrtotfish Sparisoma radians from the northeastern coast of Brazil. Sequencing of cytochrome c oxidase subunit I (COI) confirmed all studied samples as S. radians, and all showed high similarity (99-100%) with Caribbean populations. The karyotype of this species was divergent from most marine Perciformes, being composed of 2n = 46 chromosomes. These consisted of a large number of metacentric and submetacentric pairs with small amounts of heterochromatin and GC-rich single nucleolar organizer regions (NORs) not syntenic to 5S rDNA clusters. These are the first data about DNA barcoding in parrotfish from the Brazilian province and the first refined chromosomal analysis in Scarinae, providing useful data to a reliable genetic identification of S. radians.
Keywords: Peixe
Identificação genética
Brasil - País
ISSN: 1415-4757
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - IECOS

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