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dc.contributor.author
Aguilera, Patricia Mabel
dc.contributor.author
Sartor, Maria Esperanza
dc.contributor.author
Galdeano, Florencia
dc.contributor.author
Espinoza, Francisco
dc.contributor.author
Quarin, Camilo Luis
dc.date.available
2015-12-16T17:26:05Z
dc.date.issued
2011-07
dc.identifier.citation
Aguilera, Patricia Mabel; Sartor, Maria Esperanza; Galdeano, Florencia; Espinoza, Francisco; Quarin, Camilo Luis; Interspecific tetraploid hybrids between two forage grass species: sexual Paspalum plicatulum and apomictic P. guenoarum; Crop Science Soc Amer; Crop Science; 51; 4; 7-2011; 1544-1550
dc.identifier.issn
0011-183X
dc.identifier.uri
http://hdl.handle.net/11336/2953
dc.description.abstract
The Plicatula group of the grass genus Paspalum contains about 30 species. Most are tetraploid and reproduce by apomixis, though some of them contain sexual diploid races. We crossed a sexual colchicine-induced autotetraploid plant of brownseed paspalum (Paspalum plicatulum Michx.) with apomictic tetraploid P. guenoarum Arechav., also from the Plicatula group. Crossability was 35% and the progeny showed morphological characteristics intermediate to those of the parents but resembling more the male parent. The random amplifi ed polymorphic DNA (RAPD) analysis showed that the whole progeny amplifi ed bands that were specifi c of the male parent, confi rming its hybrid origin. Meiotic chromosome behavior of hybrids exhibited primarily bivalent and quadrivalent associations similar to those of the two parents. This suggests that natural tetraploid P. guenoarum shares the same basic chromosome set with that of autotetraploid P. plicatulum, and both species probably originate from the same ancestral species. Fourteen out of 23 hybrids reproduced only sexually, while nine were obligate or highly apomictic. Seed set ranged from 11 to 55% among the hybrids. Our results open the possibility of exchanging genes at the tetraploid level in breeding programs of P. plicatulum and P. guenoarum. This possibility is based on their rate of crossability, the degree of fertility among the hybrids, the segregation observed for the reproductive mode in the F1 progeny, and the very simple procedure fl ow cytometry seed screen (FCSS) used to determine the reproductive mode for each hybrid.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Crop Science Soc Amer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Plicatula
dc.subject
Apomixis
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Hybrids
dc.subject
Fcss
dc.subject.classification
Agronomía, reproducción y protección de plantas
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Agricultura, Silvicultura y Pesca
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Interspecific tetraploid hybrids between two forage grass species: sexual Paspalum plicatulum and apomictic P. guenoarum
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
51
dc.journal.number
4
dc.journal.pagination
1544-1550
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Baltimore
dc.description.fil
Fil: Aguilera, Patricia Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Sartor, Maria Esperanza. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Galdeano, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Espinoza, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Quarin, Camilo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Botánica del Nordeste (i); Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina
dc.journal.title
Crop Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/cs/abstracts/51/4/1544
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.crops.org/publications/cs/abstracts/51/4/1544?access=0&view=pdf
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