Chromosome differentiation in three species of Leptostemonum (Solanum, Solanaceae) endemic to oceanic islands.

The chromosomes of Solanum nelsonii, S. sandwicense (endemic to the Hawaii islands) and S. vespertilio (from the Canary islands) were studied by means of classical staining, CMA/DAPI banding and FISH with probes for the 18-5.8-26S and 5S rDNA genes. The aim of this study was to test for chromosomal...

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Autores principales: Chiarini, Franco E., Gauthier, Martha J.
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Sociedad Argentina de Botánica 2016
Materias:
Chromosome stasis
heterochromatin
ribosomal DNA
Solanum subgen. Leptostemonum.
Estasis cromosómica
heterocromatina
ADN ribosómico
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/14847
Aporte de:
Boletín de la Sociedad Argentina de Botánica de Universidad Nacional de Córdoba
id I10-R325-article-14847
record_format ojs
spelling I10-R325-article-148472020-03-09T17:58:10Z Chromosome differentiation in three species of Leptostemonum (Solanum, Solanaceae) endemic to oceanic islands. Diferenciación cromosómica en tres especies de Leptostemonum (Solanum, Solanaceae) endémicos de islas oceánicas. Chiarini, Franco E. Gauthier, Martha J. Chromosome stasis heterochromatin ribosomal DNA Solanum subgen. Leptostemonum. Estasis cromosómica heterocromatina ADN ribosómico Solanum subgen. Leptostemonum. The chromosomes of Solanum nelsonii, S. sandwicense (endemic to the Hawaii islands) and S. vespertilio (from the Canary islands) were studied by means of classical staining, CMA/DAPI banding and FISH with probes for the 18-5.8-26S and 5S rDNA genes. The aim of this study was to test for chromosomal changes (chromosome number, karyotype, heterochromatin pattern, rDNA loci) during the evolution of these taxa with respect to their continental relatives. An apparent chromosome stasis was confirmed in all three species, in regards to chromosome number and karyotype morphology. However, there was also evidence of cryptic, cumulative sequence changes. Speciation in these species is not likelyassociated with large, obvious chromosome rearrangements or polyploidy, but more likely due to genetic divergence. Diferenciación cromosómica en tres especies de Leptostemonum (Solanum, Solanaceae) endémicos de islas oceánicas. Los cromosomas de Solanum nelsonii, S. sandwicense (endémicosde las islas Hawaii) y de S. vespertilio (de las islas Canarias) fueron estudiados por medio de tinción clásica, bandeo CMA/DAPI y FISH con sondas para los genes de ADNr de 18-5.8-26S y 5S. El objetivofue comprobar cambios cromosómicos (número cromosómico, cariotipo, patrones de heterocromatina y loci de ADNr) durante la evolución de estos taxones, en comparación con sus parientes continentales. Una aparente estasis cromosómica fue confirmada para las tres especies, en lo que respecta a número cromosómico y cariotipos. Sin embargo, también se encontró evidencia de cambios de secuencias crípticos, acumulativos. La especiación en estas especies no estaría asociada a grandes rearreglos cromosómicos o poliploidía, sino más bien a divergencia genética. Sociedad Argentina de Botánica 2016-06-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/14847 10.31055/1851.2372.v51.n2.14847 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 51 No. 2 (2016): June; 331-340 Boletín de la Sociedad Argentina de Botánica; Vol. 51 Núm. 2 (2016): Junio; 331-340 Boletín de la Sociedad Argentina de Botánica; v. 51 n. 2 (2016): Junio; 331-340 1851-2372 0373-580X 10.31055/1851.2372.v51.n2 eng https://revistas.unc.edu.ar/index.php/BSAB/article/view/14847/14801 Derechos de autor 2016 Boletín de la Sociedad Argentina de Botánica
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-325
container_title_str Boletín de la Sociedad Argentina de Botánica
language Inglés
format Artículo revista
topic Chromosome stasis
heterochromatin
ribosomal DNA
Solanum subgen. Leptostemonum.
Estasis cromosómica
heterocromatina
ADN ribosómico
Solanum subgen. Leptostemonum.
spellingShingle Chromosome stasis
heterochromatin
ribosomal DNA
Solanum subgen. Leptostemonum.
Estasis cromosómica
heterocromatina
ADN ribosómico
Solanum subgen. Leptostemonum.
Chiarini, Franco E.
Gauthier, Martha J.
Chromosome differentiation in three species of Leptostemonum (Solanum, Solanaceae) endemic to oceanic islands.
topic_facet Chromosome stasis
heterochromatin
ribosomal DNA
Solanum subgen. Leptostemonum.
Estasis cromosómica
heterocromatina
ADN ribosómico
Solanum subgen. Leptostemonum.
author Chiarini, Franco E.
Gauthier, Martha J.
author_facet Chiarini, Franco E.
Gauthier, Martha J.
author_sort Chiarini, Franco E.
title Chromosome differentiation in three species of Leptostemonum (Solanum, Solanaceae) endemic to oceanic islands.
title_short Chromosome differentiation in three species of Leptostemonum (Solanum, Solanaceae) endemic to oceanic islands.
title_full Chromosome differentiation in three species of Leptostemonum (Solanum, Solanaceae) endemic to oceanic islands.
title_fullStr Chromosome differentiation in three species of Leptostemonum (Solanum, Solanaceae) endemic to oceanic islands.
title_full_unstemmed Chromosome differentiation in three species of Leptostemonum (Solanum, Solanaceae) endemic to oceanic islands.
title_sort chromosome differentiation in three species of leptostemonum (solanum, solanaceae) endemic to oceanic islands.
description The chromosomes of Solanum nelsonii, S. sandwicense (endemic to the Hawaii islands) and S. vespertilio (from the Canary islands) were studied by means of classical staining, CMA/DAPI banding and FISH with probes for the 18-5.8-26S and 5S rDNA genes. The aim of this study was to test for chromosomal changes (chromosome number, karyotype, heterochromatin pattern, rDNA loci) during the evolution of these taxa with respect to their continental relatives. An apparent chromosome stasis was confirmed in all three species, in regards to chromosome number and karyotype morphology. However, there was also evidence of cryptic, cumulative sequence changes. Speciation in these species is not likelyassociated with large, obvious chromosome rearrangements or polyploidy, but more likely due to genetic divergence.
publisher Sociedad Argentina de Botánica
publishDate 2016
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/14847
work_keys_str_mv AT chiarinifrancoe chromosomedifferentiationinthreespeciesofleptostemonumsolanumsolanaceaeendemictooceanicislands
AT gauthiermarthaj chromosomedifferentiationinthreespeciesofleptostemonumsolanumsolanaceaeendemictooceanicislands
AT chiarinifrancoe diferenciacioncromosomicaentresespeciesdeleptostemonumsolanumsolanaceaeendemicosdeislasoceanicas
AT gauthiermarthaj diferenciacioncromosomicaentresespeciesdeleptostemonumsolanumsolanaceaeendemicosdeislasoceanicas
first_indexed 2024-09-03T22:48:37Z
last_indexed 2024-09-03T22:48:37Z
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