Cytogenetic and molecular analyses enabled identification of two cytotypes among individuals of the spotted scorpion fish Scorpaena plumieri fromMargarita Island, Venezuela. Cytotype 1 was characterized by 48 subtelo-acrocentric chromosomes and fundamental number (number of chromosome arms; FN) equalled 48, while cytotype 2 was characterized by two metacentric and 46 subtelo-acrocentric chromosomes and FN was 50. These cytotypes also differed in the location of the ribosomal gene clusters and in the distribution of the constitutive heterochromatin. Moreover, fish from the cytotypes 1 and 2 were found to belong to distinct mitochondrial lineages. The presence of two S. plumieri cytotypes from two lineages separated by high genetic distance suggests that they correspond to sympatric cryptic species.

Cryptic Caribbean species of Scorpaena (Actinopterygii: Scorpaeniformes) suggested by cytogenetic and molecular data / Nirchio, M.; Oliveira, C.; Siccha Ramirez, Z. R.; Sena, V. F.; Sánchez Romero, O. R.; Ehemann, N. R.; Milana, Valentina; Rossi, Anna Rita; Sola, Luciana. - In: JOURNAL OF FISH BIOLOGY. - ISSN 0022-1112. - STAMPA. - 89:4(2016), pp. 1947-1957. [10.1111/jfb.13089]

Cryptic Caribbean species of Scorpaena (Actinopterygii: Scorpaeniformes) suggested by cytogenetic and molecular data

MILANA, VALENTINA;ROSSI, Anna Rita;SOLA, Luciana
2016

Abstract

Cytogenetic and molecular analyses enabled identification of two cytotypes among individuals of the spotted scorpion fish Scorpaena plumieri fromMargarita Island, Venezuela. Cytotype 1 was characterized by 48 subtelo-acrocentric chromosomes and fundamental number (number of chromosome arms; FN) equalled 48, while cytotype 2 was characterized by two metacentric and 46 subtelo-acrocentric chromosomes and FN was 50. These cytotypes also differed in the location of the ribosomal gene clusters and in the distribution of the constitutive heterochromatin. Moreover, fish from the cytotypes 1 and 2 were found to belong to distinct mitochondrial lineages. The presence of two S. plumieri cytotypes from two lineages separated by high genetic distance suggests that they correspond to sympatric cryptic species.
2016
coI; in situ hybridization; karyotype; mtDNA; Scorpaenidae
01 Pubblicazione su rivista::01a Articolo in rivista
Cryptic Caribbean species of Scorpaena (Actinopterygii: Scorpaeniformes) suggested by cytogenetic and molecular data / Nirchio, M.; Oliveira, C.; Siccha Ramirez, Z. R.; Sena, V. F.; Sánchez Romero, O. R.; Ehemann, N. R.; Milana, Valentina; Rossi, Anna Rita; Sola, Luciana. - In: JOURNAL OF FISH BIOLOGY. - ISSN 0022-1112. - STAMPA. - 89:4(2016), pp. 1947-1957. [10.1111/jfb.13089]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/970653
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