Genetic identification of bucktooth parrotfish Sparisoma radians (Valenciennes, 1840) (Labridae, Scarinae) by chromosomal and molecular markers

Paim, Fabilene Gomes; Brandão, José Henrique Souza Galdino; Sampaio, Iracilda; Affonso, Paulo Roberto Antunes de Mello; Diniz, Débora

doi:10.1590/s1415-47572014005000024

Cited by 3 publications

(1 citation statement)

References 38 publications

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“…Currently the karyotypes of only 2% of all global marine fish are known ( Galetti et al 2000 ; Vega et al 2002 ; Arai 2011 ). These studies have been focusing on just a few families of reef and pelagic fish, such as Gerreidae ( Calado et al 2013 ), Scombridae ( Soares et al 2013 ), Gobiidae ( Lima-Filho et al 2012 ), Labridae ( Molina et al 2012 ; Paim et al 2014 ), Haemulidae ( Nirchio et al 2007 ; Neto et al 2011 ) Carangidae ( Chai et al 2009 ) and Rachycentridae ( Jacobina et al 2011 ) preferably distributed in the Atlantic Ocean. According to Jara-Seguel et al (2011) the marine fish fauna of Chile has been little studied, with known cytogenetic data for only some species of the Atherinidae , Galaxiidae , Kyphosidae , Mugilidae , Ophidae and Paralichthydae families being available.…”

Section: Introductionmentioning

confidence: 99%

Cytogenetic characterization, rDNA mapping and quantification of the nuclear DNA content in Seriolella violacea Guichenot, 1848 (Perciformes, Centrolophidae)

Araya-Jaime¹,

Palma-Rojas²,

Brand³

et al. 2020

CCG

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Seriolella violacea Guichenot, 1848 is an important component of the fish fauna of the Chilean coast and is of great economic interest. Cytogenetic information for the family Centrolophidae is lacking and the genomic size of five of the twenty-eight species described for this family are is barely known. This study aimed to describe for the first time the karyotype structure via classical and molecular cytogenetics analysis with the goal of identifying the constitutive heterochromatin distribution, chromosome organization of rDNA sequences and quantification of nuclear DNA content. The karyotype of S. violacea is composed of 48 chromosomes, with the presence of conspicuous blocks of heterochromatin on chromosomal pairs one and two. FISH assay with a 5S rDNA probe, revealed the presence of fluorescent markings on the heterochromatic block of pair one. The 18S rDNA sites are located exclusively on pair two, characterizing this pair as the carrier of the NOR. Finally, the genomic size of S. violacea was estimated at 0.59 pg of DNA as C-value. This work represents the first effort to document the karyotype structure and physical organization of the rDNA sequences in the Seriolella genome, contributing with new information to improve our understanding of chromosomal evolution and genomic organization in marine perciforms.

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Section: Introductionmentioning

confidence: 99%

Cytogenetic characterization, rDNA mapping and quantification of the nuclear DNA content in Seriolella violacea Guichenot, 1848 (Perciformes, Centrolophidae)

Araya-Jaime¹,

Palma-Rojas²,

Brand³

et al. 2020

CCG

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DNA barcoding and morphological taxonomy: identification of lanternfish (Myctophidae) larvae in the Gulf of Mexico

Batta-Lona

Galindo-Sánchez

Arteaga

et al. 2019

Mitochondrial DNA Part A

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Chromosomal Evolution and Cytotaxonomy in Wrasses (Perciformes; Labridae)

Almeida

Nunes

Bitencourt³

et al. 2017

Journal of Heredity

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The wrasses (family Labridae) represent a suitable model to understand chromosomal evolution and to test the efficacy of cytotaxonomy since they display a remarkable karyotypic variation, rarely reported in marine Perciformes, as well as a high number of species and complex systematics. Therefore, we provided new chromosomal data in 5 labrids from South Atlantic (Doratonotus megalepis, Halichoeres dimidiatus, Halichoeres penrosei, Thalassoma noronhanum, and Xyrichtys novacula) and carried out a detailed comparative analysis of karyotypic data in Labridae using multivariate approaches. Basal diploid values (2n = 48) were observed in most of species studied in the present work but D. megalepis (2n = 46), along with distinct karyotype formulae. Single 18S rDNA sites interspersed with GC-rich heterochromatin were also commonly reported except for both Halichoeres species (2 18S rDNA-bearing pairs), following a species-specific pattern. These data show the high rates of chromosomal evolution in wrasses, ranging from microstructural rearrangements to centric fusions. A revision of chromosomal data in Labridae based on multivariate analysis of 74 taxa allowed inferring karyoevolutionary trends within tribes and genera of wrasses. The dendrogram obtained was in agreement with recent systematic hypotheses. In spite of the independent occurrence of some chromosomal rearrangements, karyoevolutionary trends could be identified within tribes of Labridae. Moreover, the karyotypic features are also suitable as cytotaxonomic markers of wrasses.

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Genetic identification of bucktooth parrotfish Sparisoma radians (Valenciennes, 1840) (Labridae, Scarinae) by chromosomal and molecular markers

Cited by 3 publications

References 38 publications

Cytogenetic characterization, rDNA mapping and quantification of the nuclear DNA content in Seriolella violacea Guichenot, 1848 (Perciformes, Centrolophidae)

Cytogenetic characterization, rDNA mapping and quantification of the nuclear DNA content in Seriolella violacea Guichenot, 1848 (Perciformes, Centrolophidae)

DNA barcoding and morphological taxonomy: identification of lanternfish (Myctophidae) larvae in the Gulf of Mexico

Chromosomal Evolution and Cytotaxonomy in Wrasses (Perciformes; Labridae)

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