Artículo
Karyotypic studies in wild germplasm of Arachis (Leguminosae)
Fecha de publicación:
12/2008
Editorial:
Springer
Revista:
Genetic Resources and Crop Evolution
ISSN:
0925-9864
e-ISSN:
1573-5109
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The karyomorphology for eight diploid species of Arachis belonging to three sections has been described for the first time, Sect. Extranervosae: A. macedoi (2n = 20m) and A. retusa (2n = 14m + 6sm); Sect. Heteranthae: A. sylvestris (2n = 16m + 4sm); Sect. Procumbentes: A. chiquitana (2n = 18m + 2sm); Sect. Arachis: A. cruziana (2n = 18m + 2sm), A. herzogii (2n = 18m + 2sm), A. simpsonii (2n = 20m) and A. williamsii (2n = 20m). A pair of satellited chromosomes was observed in all species. A chromosomes were found in A. chiquitana, A. herzogii and A. simpsonii. Karyotypic differences between sections were observed, but not enough to establish a characteristic karyotype pattern for each section. However, the species may be differentiated by the presence of A chromosomes, the type and position of satellites, and the karyotype formulae. These results are discussed with regard to karyotype evolution in Arachis to contribute to understanding the role of chromosome changes in the evolution of the genus.
Palabras clave:
Chromosomes
,
Karyotype Evolution
,
Wild Peanut
,
Arachis
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IBONE)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Citación
Lavia, Graciela Inés; Ortiz, Alejandra Marcela; Fernandez, Aveliano; Karyotypic studies in wild germplasm of Arachis (Leguminosae); Springer; Genetic Resources and Crop Evolution; 56; 6; 12-2008; 755-764
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