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Chromosome number of seven species and three varieties of the genus Stylosanthes SW. (Leguminosae - Papilionoideae)^*

Alice Battistin^I; Paulo Sodero Martins^II

^IDepartamento de Biologia, Setor Genética. Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, 97119 Santa Maria, RS. Brasil. Send correspondence to A.B.
^IIDepartamento de Genética, ESALQ/USP. Caixa Postal 83, 13400 Piracicaba, SP, Brasil

ABSTRACT

Chromosome counts were performed in seven species and three varieties of Stylosanthes Sw. Five out of seven species as well as the three varieties were diploids (2n = 20), while S. capitata and S. scabra were tetraploids (2n = 40). The chromosomes of S. grandifolia and S. gracilis are larger than those of the other five species and varieties studied.

Keywords: chromosome; species; Stylosanthes.

REFERENCES

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* Part of a Masters Thesis presented by A.B. to the Department of Genetics, ESALQ/USP, Piracicaba, SP