Abstract
The genus Brachiaria (Trin.) Griseb. has been characterized as having two basic chromosome numbers to this date: x = 7 and x = 9, with the predominance of the latter. Cytological studies performed on five accessions of Brachiaria dictyoneura (Fig. et De Not.). Stapf revealed a new chromosome number for the genus, x = 6. The origin of x = 6 is still unknown. All accessions examined for this species presented 2n = 24 and typical meiotic abnormalities of polyploids. The use of such accessions in the Brachiaria hybridization breeding program is discussed.
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Risso-Pascotto, C., Pagliarini, M.S. & do Valle, C.B. A New Basic Chromosome Number for the Genus Brachiaria (Trin.)Griseb. (Poaceae: Panicoideae: Paniceae). Genet Resour Crop Evol 53, 7–10 (2006). https://doi.org/10.1007/s10722-005-7762-4
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DOI: https://doi.org/10.1007/s10722-005-7762-4