Cytogenetic relationships within the Maghrebian clade of Festuca subgen. Schedonorus (Poaceae), using flow cytometry and FISH
Ezquerro-López, D. ; Kopecký, D. ; Inda, L.A. (Universidad de Zaragoza)
Resumen: Festuca subgen. Schedonorus is a group of broad-leaved fescues, which can be divided into two clades: European and Maghrebian. We employed fluorescent in situ hybridization -FISH- with probes specific for 5S and 35S ribosomal DNA and genome size estimation using flow cytometry to shed light on the determination of possible parental genomes of polyploid species of the Maghrebian clade. Our results indicate that octoploid F.arundinacea subsp. atlantigena probably originated from crossing ofthe tetraploids F. arundinacea subsp. fenas -2n = 4x = 28- and F. mairei-2n = 4x = 28- followed by whole genome duplication. However, alarge reconstruction of karyotype and genome downsizing has beenrevealed. Similarly, hexaploid F. arundinacea subsp. corsica presumablyresulted from the interspecific hybridization of the diploid F. pratensisand tetraploid F. arundinacea subsp. fenas. Several scenarios on the origin of decaploid F. arundinacea var. letourneuxiana are discussed. Thisstudy contributed to our knowledge on the phylogeny of broad-leavedfescues and provided new information on the karyotypes -chromosomenumbers, ploidy levels and numbers and positions of rDNA loci- usingFISH and genome size estimations using flow cytometry in selected taxaof this important grass genus.
Idioma: Inglés
DOI: 10.3989/ajbm.2455
Año: 2017
Publicado en: ANALES DEL JARDIN BOTANICO DE MADRID 74, 1 (2017), e052 [9 pp]
ISSN: 0211-1322
Factor impacto JCR: 0.5 (2017)
Categ. JCR: PLANT SCIENCES rank: 198 / 222 = 0.892 (2017) - Q4 - T3
Factor impacto SCIMAGO: 0.261 - Plant Science (Q3) - Ecology, Evolution, Behavior and Systematics (Q4)
Financiación: info:eu-repo/grantAgreement/ES/DGA/Bioflora
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2012-39953-C02-01
Tipo y forma: Article (Published version)
Área (Departamento): Área Botánica (Dpto. CC.Agrar.y Medio Natural)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
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Idioma: Inglés
DOI: 10.3989/ajbm.2455
Año: 2017
Publicado en: ANALES DEL JARDIN BOTANICO DE MADRID 74, 1 (2017), e052 [9 pp]
ISSN: 0211-1322
Factor impacto JCR: 0.5 (2017)
Categ. JCR: PLANT SCIENCES rank: 198 / 222 = 0.892 (2017) - Q4 - T3
Factor impacto SCIMAGO: 0.261 - Plant Science (Q3) - Ecology, Evolution, Behavior and Systematics (Q4)
Financiación: info:eu-repo/grantAgreement/ES/DGA/Bioflora
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2012-39953-C02-01
Tipo y forma: Article (Published version)
Área (Departamento): Área Botánica (Dpto. CC.Agrar.y Medio Natural)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. Exportado de SIDERAL (2019-07-09-11:47:56)
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Record created 2017-09-11, last modified 2019-07-09