A Cytological Study of the Genus Sorghum: Subsections Para-Sorghum and Eu-Sorghum
- 1 January 1944
- journal article
- research article
- Published by University of Chicago Press in The American Naturalist
- Vol. 78 (774) , 89-94
- https://doi.org/10.1086/281177
Abstract
All spp. of the subgenus Para-sorghum (S. dimidiatum, S. versicolor, and S. purpureo-sericeum) have the number 2n=10 and relatively large chromosomes, which at prophase stain evenly with acetocarmine. Those of the subgenus Eu-sorghum (S. vulgare, S. sudanense, S. halepense) have 2n = 20 or 40 and smaller chromosomes which stain more heavily in the regions adjacent to the centromere, and very lightly at the distal ends. In the tetraploid S. halepense (2n = 40), 0-5 quadrivalents were observed, and the haploid number n=15 was found in Hyparrhenia hirta. On the basis of this evidence, x = 5 is suggested as the basic chromosome number for Sorghum.This publication has 2 references indexed in Scilit:
- Chromosome Numbers in SorghumAmerican Journal of Botany, 1936
- A cytological study of the genusSorghum Pers.Journal of Genetics, 1932