Chromosome numbers of Chilean pteridophytes: First contribution

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Authors
Jara Seguel, Pedro
Romero Mieres, Mario
Palma Rojas, Claudio
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Date
2012-02-29
Datos de publicación:
Gayana - Botánica, Vol.63, N°1, 115-118, 2006
Keywords
Helechos - Mitóticas cromosómicas - Pteridofitas
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Abstract
Mitotic chromosome counts in Chilean pteridophytes confirm the diploidy described for Equisetum L. (2n = 216) and Blechnum L. (2n = 66), as well as the tetraploidy of Asplenium L. (2n = 144). Megalastrum spectabile (Kaulf.) A.R.Sm. et R.C.Moran is diploid (2n = 82), while in metaphases of Polystichum subintegerrimum (Hook. et Arn.) R.A.Rodr. chromosome numbers from ca. 311 to 328 were counted. Tetraploidy was also described in Adiantum chilense Kaulf. (2n = 116).
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