Artículo
Genomic affinity in hybrids of B-genome Arachis species: new genetic resources toward peanut improvement
García, Alejandra Vanina
; Silvestri, María Celeste
; Vandecaveye, Melina Antonella
; Custódio Alves, Raquel; de Carvalho Moretzsohn, Márcio; Lavia, Graciela Inés
Fecha de publicación:
09/2021
Editorial:
Brazilian Soc Plant Breeding
Revista:
Crop Breeding And Applied Biotechnology
ISSN:
1518-7853
e-ISSN:
1984-7033
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Peanut (Arachis hypogaea L.) is an important oilseed crop and food legume that is highly susceptible to biotic and abiotic factors. Wild Arachis species represent useful genetic resources because of their resistance to pests and diseases. In particular, understanding the affinity between B-genome species is important for broadening the genetic base of A. hypogaea (AABB genome), since only one population of A. ipaënsis is known, and relatively few other species have been described. Therefore, we aimed to determine the genomic affinity between A. ipaënsis and A. williamsii by developing hybrids. Microsatellite markers verified the hybrid status, and chromosome pairing and pollen viability results revealed that the species share high genomic affinity. Additionally, the presence of dyads detected in sporad and pollen analyses indicated the production of 2n gametes. These results will be useful for performing evolutionary studies and developing strategies for introgression programs to improve the B genome of A. hypogaea.
Palabras clave:
MEIOTIC ANALYSIS
,
PEANUT
,
POLLEN VIABILITY
,
WILD RELATIVES
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IBONE)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Citación
García, Alejandra Vanina; Silvestri, María Celeste; Vandecaveye, Melina Antonella; Custódio Alves, Raquel; de Carvalho Moretzsohn, Márcio; et al.; Genomic affinity in hybrids of B-genome Arachis species: new genetic resources toward peanut improvement; Brazilian Soc Plant Breeding; Crop Breeding And Applied Biotechnology; 21; 3; 9-2021; 1-10
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