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Gayana. Botánica

Print version ISSN 0016-5301On-line version ISSN 0717-6643


BAEZA, Carlos M; RUIZ, Eduardo; NOVOA, Patricio  and  NEGRITTO, María A. The karyotype of Chaethanthera linearis Poepp. (Asteraceae). Gayana Bot. [online]. 2010, vol.67, n.1, pp.113-116. ISSN 0016-5301.

The karyotype of Chaetanthera linearis var. linearis from Chile was examined. The species has 2n = 2x = 22 chromosomes, with 9m + 1st + 1 st-sat chromosomes. The reported karyotype is symmetric (AsK % = 58.0, TF % = 42.0 and Syi % = 72.4). The karyotype of this species was compared with Ch. microphylla var. microphylla a very similar species in morphology and distribution to Ch. linearis var. linearis, but with clearly differentiated karyotype.

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