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dc.contributor.author
Stein, Juliana
dc.contributor.author
Quarin, Camilo Luis
dc.contributor.author
Martínez, Eric Javier
dc.contributor.author
Pessino, Silvina Claudia
dc.contributor.author
Ortiz, Juan Pablo Amelio
dc.date.available
2017-12-14T14:28:41Z
dc.date.issued
2004-02
dc.identifier.citation
Stein, Juliana; Quarin, Camilo Luis; Martínez, Eric Javier; Pessino, Silvina Claudia; Ortiz, Juan Pablo Amelio; Tetraplioid races of Paspalum notatum show polysomic inheritance and preferential chromosome pairing around the apospory-controlling locus; Springer; Theoretical And Applied Genetics; 109; 1; 2-2004; 186-191
dc.identifier.issn
0040-5752
dc.identifier.uri
http://hdl.handle.net/11336/30573
dc.description.abstract
The objective of this work was to determine the type of inheritance (disomic/polysomic) in tetraploid (2n=4x=40) Paspalum notatum and investigate the transmission pattern of the chromosome region associated with apospory. An F1 family segregating for the reproductive mode (aposporous vs non-aposporous) was generated by crossing a tetraploid sexual plant as female parent with an apomictic individual as pollen donor. Pollen mother cells from both parental plants were examined to ascertain chromosome-pairing behavior at meiosis. The high rate of quadrivalent chromosome associations indicated an autotetraploid origin of the species, although bivalent pairing and occasional univalents were detected. The observation of a lagging bivalent, a bridge of chromatin, or two aligned laggards in the aposporous parent suggested a chromosome inversion in this strain. Segregation ratios of AFLP markers and the proportion of linkages in repulsion versus coupling phase denoted tetrasomic inheritance, but markers displaying disomic ratios were also observed. Preferential chromosome pairing (disomic inheritance) in the chromosome segment related to apospory was detected. The possible relationship between a chromosome rearrangement and the inheritance of apospory is discussed.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject.classification
Genética y Herencia
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Tetraplioid races of Paspalum notatum show polysomic inheritance and preferential chromosome pairing around the apospory-controlling locus
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-04T17:30:38Z
dc.identifier.eissn
1432-2242
dc.journal.volume
109
dc.journal.number
1
dc.journal.pagination
186-191
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Stein, Juliana. Universidad Nacional de Rosario; Argentina
dc.description.fil
Fil: Quarin, Camilo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Martínez, Eric Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Pessino, Silvina Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
dc.description.fil
Fil: Ortiz, Juan Pablo Amelio. Universidad Nacional de Rosario; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.journal.title
Theoretical And Applied Genetics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00122-004-1614-z
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00122-004-1614-z
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