INVESTIGADORES
PEICHOTO Myriam Carolina
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.; SOLÍS NEFFA V.
Revista:
PLANT SYSTEMATICS AND EVOLUTION
Editorial:
SPRINGER WIEN
Referencias:
Lugar: Viena; Año: 2011 vol. 292 p. 63 - 71
ISSN:
0378-2697
Resumen:
Chromosome numbers are reported here for 53accessions belonging to 13 taxa of the genus Schizachyrium.The chromosome counts for the following seven species arerecorded here for the first time: S. bimucronatum (2n = 20),S. gracilipes (2n = 20), S. hatschbachii (2n = 20), S. lactiflorum(2n = 20), S. plumigerum (2n = 20), S. salzmannii(2n = 20; 2n = 40) and S. spicatum (2n = 20). Countsdiffering from those previously reported are given for twospecies: S. scabriflorum (2n = 20 and 80) and S. tenerum(2n = 40). Most of the analyzed species of this genus arediploids. The occurrence of polyploidy in S. glaziovii,S. lactiflorum, S. salzmanni, S. scabriflorum and S. tenerumis reported here for the first time. Data on chromosomenumbers and ploidy levels are discussed in relation to thetaxonomy and evolution of the genus.