Author： Yim Kyu-Ock Bayer David
Publisher： Springer Publishing Company
ISSN： 0014-2336
Source： Euphytica, Vol.94, Iss.2, 1997-03, pp. : 253-256
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Abstract
The segregating F2 population from the hybrid between grain sorghum (Sorghum bicolor), chromosome number doubled, and Johnsongrass (S. halepense) was examined for expression of rhizomes. A rhizome to non-rhizome segregation ratio of 3:1 was observed suggesting a single dominant gene regulation in the rhizome phenotype of S. bicolor and S. halepense. Approximately 72% of the F2 population overwintered and regrew from the rhizomes the following spring. When comparing these data with data in the literature, the rhizome regulating gene in the Sorghum genus may be an incomplete dominant gene requiring a few genes to be expressed additively that result in different degrees of rhizome development in the Sorghum genus.
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