Inheritance of the necrotic and mosaic reactions in Sorghum infected with a "Johnson Grass" strain of Sugarcane mosaic virus

Teakle, D.S. and Moore, R.F. and George, D.L. and Byth, D.E. (1970) Inheritance of the necrotic and mosaic reactions in Sorghum infected with a "Johnson Grass" strain of Sugarcane mosaic virus. Australian Journal of Agricultural Economics, 21 (4). pp. 549-556.

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Abstract

When 30 sorghum inbred lines were inoculated with a 'Johnson grass' strain of sugarcane mosaic virus, seven reacted with systemic necrosis whereas 23 developed systemic mosaic symptoms. Nine F1 populations, 11 F2 populations, and 17 F3 populations derived from one F2 were tested for reaction to the virus. The results are consistent with the hypothesis that inheritance of the type of reaction is controlled by a single gene. The gene does not appear to have been reported previously, and the alleles are designated N, n. Presence of the dominant allele results in systemic necrosis, whereas presence of the homozygous recessive results in systemic mosaic symptoms. Colour of the necrosis, i.e. whether red or tan, is controlled by another single gene, probably the factor for purple (P) or tan (p) plant colour. The N and P genes do not appear to be linked

Item Type: Article
Author Affiliation: University of Queensland Medical School, Herston, Queensland
Subjects: Plant Protection
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 27 Jun 2012 05:25
Last Modified: 27 Jun 2012 05:26
Official URL: http://www.publish.csiro.au/paper/AR9700549.htm
URI: http://eprints.icrisat.ac.in/id/eprint/6274

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