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Obtaining sexual genotypes for breeding in buffel grass
- Source :
- South African Journal of Botany 88 : 118-123 (September 2013), INTA Digital (INTA), Instituto Nacional de Tecnología Agropecuaria, instacron:INTA, Repositorio Digital Universitario (UNC), Universidad Nacional de Córdoba, instacron:UNC
- Publication Year :
- 2013
- Publisher :
- Elsevier BV, 2013.
-
Abstract
- Buffel grass (Cenchrus ciliaris L. syn. Pennisetum ciliare (L.) Link) is a species that is highly tolerant to drought and is used primarily as forage in drier regions throughout the subtropics and tropics. It reproduces mainly by apomixis and the acquisition of obligate sexual genotypes or facultative apomicts with high levels of sexuality is required for performing crosses and plant improvement. The aim of this study was to obtain sexual genotypes from controlled crosses using obligate apomictic cultivars and a sexual line. Twelve putative hybrid F1 plants were selected morphologically and two of them were identified as sexual genotypes by PCR using specific primers for reproductive mechanism. Cytoembryological analysis showed 65.5 and 71.3% meiotic embryo sacs in these plants and their hybrid nature was corroborated by AFLP. Both highly sexual genotypes could be used as female parents in crosses for obtaining improved cultivars of buffel grass. Fil: Quiroga, M.. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Geneticos Vegetales; Argentina Fil: Grunberg, Karina Alejandra. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Geneticos Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Ribotta, A.. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Geneticos Vegetales; Argentina Fil: Lopez Colomba, Eliana. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Geneticos Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Carloni, E.. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Geneticos Vegetales; Argentina Fil: Tomassino, E.. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Geneticos Vegetales; Argentina Fil: Luna, Celina Mercedes. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Geneticos Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Griffa, S.. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Geneticos Vegetales; Argentina
- Subjects :
- Fitomejoramiento
Pasto buffel
Buffel Grass
Genotypes
Genotipos
Hibridization
Plant Science
Biology
Cenchrus ciliaris
Meiosis
Cenchrus Ciliaris
Hibridación
Apomixis
Botany
FACULTIVATIVE APOMIXIS
Cultivar
Hybridization
Facultative
Obligate
fungi
food and beverages
HIBRIDIZATION
biology.organism_classification
Forage breeding
Plant Breeding
Facultative apomixis
Agronomy
Amplified fragment length polymorphism
CENCHRUS CILIARIS
FACULTATIVE APOMIXIS
FORAGE BREEDING
Pennisetum
Subjects
Details
- ISSN :
- 02546299
- Volume :
- 88
- Database :
- OpenAIRE
- Journal :
- South African Journal of Botany
- Accession number :
- edsair.doi.dedup.....84676fee760a292d0bc8210770e9f411