A karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rDNA-FISH

A cytogenetic characterization, including heterochromatin content, and the analysis of the location of rDNA genes, was performed in Largus fasciatus Blanchard, 1843 and L. Rufipennis Laporte, 1832. Mitotic and meiotic analyses revealed the same diploid chromosome number 2n = 12 + X0/XX (male/female)...

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Autor principal:	Bressa, Maria Jose
Publicado:	2017
Materias:	C-banding Heteroptera Holokinetic chromosomes Karyotype comparison Largus RDNA-FISH
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19930771_v11_n2_p239_Salanitro http://hdl.handle.net/20.500.12110/paper_19930771_v11_n2_p239_Salanitro
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_19930771_v11_n2_p239_Salanitro
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spelling	paper:paper_19930771_v11_n2_p239_Salanitro2023-06-08T16:32:50Z A karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rDNA-FISH Bressa, Maria Jose C-banding Heteroptera Holokinetic chromosomes Karyotype comparison Largus RDNA-FISH A cytogenetic characterization, including heterochromatin content, and the analysis of the location of rDNA genes, was performed in Largus fasciatus Blanchard, 1843 and L. Rufipennis Laporte, 1832. Mitotic and meiotic analyses revealed the same diploid chromosome number 2n = 12 + X0/XX (male/female). Heterochromatin content, very scarce in both species, revealed C-blocks at both ends of autosomes and X chromosome. The most remarkable cytological feature observed between both species was the different chromosome position of the NORs. This analysis allowed us to use the NORs as a cytological marker because two clusters of rDNA genes are located at one end of one pair of autosomes in L. Fasciatus, whereas a single rDNA cluster is located at one terminal region of the X chromosome in L. Rufipennis. Taking into account our results and previous data obtained in other heteropteran species, the conventional staining, chromosome bandings, and rDNA-FISH provide important chromosome markers for cytotaxonomy, karyotype evolution, and chromosome structure and organization studies. © 2017. Leonardo Luís Artico et al. All reights reserved. Fil:Bressa, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19930771_v11_n2_p239_Salanitro http://hdl.handle.net/20.500.12110/paper_19930771_v11_n2_p239_Salanitro
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	C-banding Heteroptera Holokinetic chromosomes Karyotype comparison Largus RDNA-FISH
spellingShingle	C-banding Heteroptera Holokinetic chromosomes Karyotype comparison Largus RDNA-FISH Bressa, Maria Jose A karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rDNA-FISH
topic_facet	C-banding Heteroptera Holokinetic chromosomes Karyotype comparison Largus RDNA-FISH
description	A cytogenetic characterization, including heterochromatin content, and the analysis of the location of rDNA genes, was performed in Largus fasciatus Blanchard, 1843 and L. Rufipennis Laporte, 1832. Mitotic and meiotic analyses revealed the same diploid chromosome number 2n = 12 + X0/XX (male/female). Heterochromatin content, very scarce in both species, revealed C-blocks at both ends of autosomes and X chromosome. The most remarkable cytological feature observed between both species was the different chromosome position of the NORs. This analysis allowed us to use the NORs as a cytological marker because two clusters of rDNA genes are located at one end of one pair of autosomes in L. Fasciatus, whereas a single rDNA cluster is located at one terminal region of the X chromosome in L. Rufipennis. Taking into account our results and previous data obtained in other heteropteran species, the conventional staining, chromosome bandings, and rDNA-FISH provide important chromosome markers for cytotaxonomy, karyotype evolution, and chromosome structure and organization studies. © 2017. Leonardo Luís Artico et al. All reights reserved.
author	Bressa, Maria Jose
author_facet	Bressa, Maria Jose
author_sort	Bressa, Maria Jose
title	A karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rDNA-FISH
title_short	A karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rDNA-FISH
title_full	A karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rDNA-FISH
title_fullStr	A karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rDNA-FISH
title_full_unstemmed	A karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rDNA-FISH
title_sort	karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rdna-fish
publishDate	2017
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19930771_v11_n2_p239_Salanitro http://hdl.handle.net/20.500.12110/paper_19930771_v11_n2_p239_Salanitro
work_keys_str_mv	AT bressamariajose akaryotypecomparisonbetweentwospeciesofborderedplantbugshemipteraheteropteralargidaebyconventionalchromosomestainingcbandingandrdnafish AT bressamariajose karyotypecomparisonbetweentwospeciesofborderedplantbugshemipteraheteropteralargidaebyconventionalchromosomestainingcbandingandrdnafish
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A karyotype comparison between two species of bordered plant bugs (hemiptera, heteroptera, largidae) by conventional chromosome staining, c-banding and rDNA-FISH

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