Karyotypic studies in Arachis hypogaea L. varieties

Authors
Lavia, Graciela Inés; Fernandez, Aveliano
Publication Year
2004
Language
English
Format
article
Status
Published version
Description
The karyotypes of nine Arachis hypogaea accessions, including two botanical varieties of subspecies hypogaea and four of subspecies fastigiata, were analyzed. Varieties aequatoriana and peruviana were studied for the first time. The mean chromosome length showed that variety hirsuta is distinctive when compared with the others because it is the shortest; besides, significant intravarietal differences exist within variety hypogaea, but not between subspecies. The karyotypes are highly symmetric since metacentric chromosomes are the most frequent. A pair of satellites was observed in all the accessions in mitotic metaphases, this feature was useful to differentiate groups. These data suggest that all Arachis accessions present a very similar chromosomal complement and support the hypothesis of a monophyletic origin. © 2004 Taylor & Francis Group, LLC.
Fil: Lavia, Graciela Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
Fil: Fernandez, Aveliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina
Subject
ARACHIS HYPOGAEA
CHROMOSOMES
KARYOTYPES
PEANUT
VARIETIES
Ciencias de las Plantas, Botánica
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/65216