INVESTIGADORES
SOLIS NEFFA Viviana Griselda
artículos
Título:
CHROMOSOME NUMBER AND PLOIDY LEVEL OF SOME SOUTH AMERICAN SPECIES OF SCHIZACHYRIUM (POACEAE, ANDROPOGONEAE)
Autor/es:
PEICHOTO, M. C.; GALDEANO, F.; ARBO, M. M.; VIVIANA GRISELDA SOLIS NEFFA
Revista:
PLANT SYSTEMATICS AND EVOLUTION
Editorial:
SPRINGER WIEN
Referencias:
Año: 2011 vol. 292 p. 63 - 63
ISSN:
0378-2697
Resumen:
Chromosome numbers are here reported for 53 accessions belonging to 13 taxa of the genus Schizachyrium. The chromosome counts for the following seven species: Schizachyrium bimucronatum (2n = 20), Schizachyrium gracilipes (2n = 20), Schizachyrium hatschbachii (2n = 20), Schizachyrium lactiflorum (2n = 20), Schizachyrium plumigerum (2n = 20), Schizachyrium salzmannii (2n = 20; 2n = 40), and Schizachyrium spicatum (2n = 20), are here recorded for the first time. Counts differing from those previously reported are given for two species: Schizachyrium scabriflorum (2n = 20 and 80) and Schizachyrium tenerum (2n = 40). Most of the analyzed species of this genus are diploids. The occurrence of polyploidy in Schizachyrium elongatum, Schizachyrium lactiflorum, Schizachyrium salzmanni, Schizachyrium scabriflorum and Schizachyrium tenerum is here reported for the first time. Data on chromosome numbers and ploidy levels are discussed in relation to the taxonomy and evolution of the genus.
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