Artículo
Transference of natural diversity from the apomictic germplasm of Paspalum notatum to a sexual synthetic population
Zilli, Alex Leonel
; Acuña, Carlos Alberto
; Schulz, Roberto R.; Marcón, Florencia
; Brugnoli, Elsa Andrea
; Novo, Sabina F.; Quarin, Camilo Luis
; Martínez, Eric Javier
Fecha de publicación:
06/2019
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Annals of Applied Biology
ISSN:
0003-4746
e-ISSN:
1744-7348
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Genetic improvement in apomictic forage species has been restricted because of the absence of genetic variability in sexual germplasm with the same ploidy level. Following a new breeding scheme, a sexual synthetic tetraploid population (SSTP) of Paspalum notatum has been generated. The objectives of this work were: (a) to evaluate the genetic variability in SSTP by means of molecular markers, morphologic and agronomic traits, and seed fertility and quality traits and (b) to assess the transference of genetic variability from the apomictic germplasm to the sexual one. Molecular markers revealed a twofold higher level of variability in the SSTP in comparison with the sexual germplasm utilised for its generation, and similar levels with the apomictic ones; moreover, markers showed that most of the variability was inherited from theapomictic germplasm. Morphologic and agronomic traits and seed fertility and quality traits showed high levels of variation in the three groups of genotypes indicating that the new breeding scheme was effective in transferring variability from the apomictic germplasm to the SSTP. This new population will be useful in breeding of P. notatum, and the breeding scheme used for its generation may be used in other apomictic species.
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Articulos(IBONE)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Citación
Zilli, Alex Leonel; Acuña, Carlos Alberto; Schulz, Roberto R.; Marcón, Florencia; Brugnoli, Elsa Andrea; et al.; Transference of natural diversity from the apomictic germplasm of Paspalum notatum to a sexual synthetic population; Wiley Blackwell Publishing, Inc; Annals of Applied Biology; 6-2019; 1-11
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