Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families
Diverse families of satellite DNA (satDNA) were detected in heterochromatin regions of Deschampsia. This kind of repetitive DNA consists of tandem repeat sequences forming big arrays in genomes, and can contribute to lineages differentiation. The differentiation between types of satDNA is related to...
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ftconicet:oai:ri.conicet.gov.ar:11336/183689 2023-10-09T21:47:13+02:00 Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families González, María Laura Chiapella, Jorge Oscar Urdampilleta, Juan Domingo application/pdf http://hdl.handle.net/11336/183689 eng eng Frontiers Media info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fgene.2021.728664/full info:eu-repo/semantics/altIdentifier/doi/10.3389/fgene.2021.728664 http://hdl.handle.net/11336/183689 González, María Laura; Chiapella, Jorge Oscar; Urdampilleta, Juan Domingo; Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families; Frontiers Media; Frontiers in Genetics; 12; 728664; 9-2021; 1-12 1664-8021 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ CYTOGENETICS DESCHAMPSIA FISH REPETITIVE DNA SATELLITE DNA https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.3389/fgene.2021.728664 2023-09-24T19:59:05Z Diverse families of satellite DNA (satDNA) were detected in heterochromatin regions of Deschampsia. This kind of repetitive DNA consists of tandem repeat sequences forming big arrays in genomes, and can contribute to lineages differentiation. The differentiation between types of satDNA is related to their sequence identity, the size and number of monomers forming the array, and their chromosomal location. In this work, four families of satDNA (D2, D3, D12, D13), previously isolated by genomic analysis, were studied on chromosomal preparations of 12 species of Deschampsia (D. airiformis, D. antarctica, D. cespitosa, D. cordillerarum, D. elongata, D. kingii, D. laxa, D. mendocina, D. parvula, D. patula, D. venustula, and Deschampsia sp) and one of Deyeuxia (D. eminens). Despite the number of satDNA loci showing interspecific variation, the general distribution pattern of each satDNA family is maintained. The four satDNA families are AT-rich and associated with DAPI + heterochromatin regions. D2, D3, and D12 have mainly subterminal distribution, while D13 is distributed in intercalary regions. Such conservation of satDNA patterns suggests a not random distribution in genomes, where the variation between species is mainly associated with the array size and the loci number. The presence of satDNA in all species studied suggests a low genetic differentiation of sequences. On the other hand, the variation of the distribution pattern of satDNA has no clear association with phylogeny. This may be related to high differential amplification and contraction of sequences between lineages, as explained by the library model. Fil: González, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Chiapella, Jorge Oscar. Consejo Nacional de Investigaciones ... Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Laxa ENVELOPE(-17.055,-17.055,65.344,65.344) Frontiers in Genetics 12 |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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ftconicet |
language |
English |
topic |
CYTOGENETICS DESCHAMPSIA FISH REPETITIVE DNA SATELLITE DNA https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
CYTOGENETICS DESCHAMPSIA FISH REPETITIVE DNA SATELLITE DNA https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 González, María Laura Chiapella, Jorge Oscar Urdampilleta, Juan Domingo Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families |
topic_facet |
CYTOGENETICS DESCHAMPSIA FISH REPETITIVE DNA SATELLITE DNA https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Diverse families of satellite DNA (satDNA) were detected in heterochromatin regions of Deschampsia. This kind of repetitive DNA consists of tandem repeat sequences forming big arrays in genomes, and can contribute to lineages differentiation. The differentiation between types of satDNA is related to their sequence identity, the size and number of monomers forming the array, and their chromosomal location. In this work, four families of satDNA (D2, D3, D12, D13), previously isolated by genomic analysis, were studied on chromosomal preparations of 12 species of Deschampsia (D. airiformis, D. antarctica, D. cespitosa, D. cordillerarum, D. elongata, D. kingii, D. laxa, D. mendocina, D. parvula, D. patula, D. venustula, and Deschampsia sp) and one of Deyeuxia (D. eminens). Despite the number of satDNA loci showing interspecific variation, the general distribution pattern of each satDNA family is maintained. The four satDNA families are AT-rich and associated with DAPI + heterochromatin regions. D2, D3, and D12 have mainly subterminal distribution, while D13 is distributed in intercalary regions. Such conservation of satDNA patterns suggests a not random distribution in genomes, where the variation between species is mainly associated with the array size and the loci number. The presence of satDNA in all species studied suggests a low genetic differentiation of sequences. On the other hand, the variation of the distribution pattern of satDNA has no clear association with phylogeny. This may be related to high differential amplification and contraction of sequences between lineages, as explained by the library model. Fil: González, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Chiapella, Jorge Oscar. Consejo Nacional de Investigaciones ... |
format |
Article in Journal/Newspaper |
author |
González, María Laura Chiapella, Jorge Oscar Urdampilleta, Juan Domingo |
author_facet |
González, María Laura Chiapella, Jorge Oscar Urdampilleta, Juan Domingo |
author_sort |
González, María Laura |
title |
Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families |
title_short |
Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families |
title_full |
Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families |
title_fullStr |
Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families |
title_full_unstemmed |
Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families |
title_sort |
chromosomal differentiation of deschampsia (poaceae) based on four satellite dna families |
publisher |
Frontiers Media |
url |
http://hdl.handle.net/11336/183689 |
long_lat |
ENVELOPE(-17.055,-17.055,65.344,65.344) |
geographic |
Argentina Laxa |
geographic_facet |
Argentina Laxa |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fgene.2021.728664/full info:eu-repo/semantics/altIdentifier/doi/10.3389/fgene.2021.728664 http://hdl.handle.net/11336/183689 González, María Laura; Chiapella, Jorge Oscar; Urdampilleta, Juan Domingo; Chromosomal Differentiation of Deschampsia (Poaceae) Based on Four Satellite DNA Families; Frontiers Media; Frontiers in Genetics; 12; 728664; 9-2021; 1-12 1664-8021 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.3389/fgene.2021.728664 |
container_title |
Frontiers in Genetics |
container_volume |
12 |
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1779310159786409984 |