CHROMOSOMAL NUMBER OF A POPULATION OF Alstroemeria pelegrina L. (ALSTROEMERIACEAE), ENDEMIC SPECIES OF CHILE

Carlos Baeza^1*, Pedro Carrasco¹, y Nicolás Villalobos²

ABSTRACT

There are previous cytological studies in Alstroemeria pelegrina, an endemic species of Chile, but none of them clearly indicates the location of the material studied. A population of Alstroemeria pelegrina, collected from Los Molles (Region of Valparaíso), was analyzed cytotaxonomically. It was found that this population presents a 2n = 16 chromosomes and a caryotypic haploid formula 3m + 1sm + 2st + 2t. By comparing the biometric data and asymmetry indices of the karyotype of this popu­lation with previously published data, it is concluded that it is definitely the same species.

Key words: Alstroemeria, chromosomes, caryotypic formula, Los Molles, Chile.

¹ Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile

² Departamento de Producción Animal, Facultad de Agronomía, Universidad de Concepción, Vicente Méndez 595, Chillán

* Autor para correspondencia E-mail: cbaeza@udec.cl