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Disease resistance. Wheat Spindle Streak Mosaic Bymovirus (WSSMV)

WSSMV resistance

Background information

Resistance to wheat spindle streak mosaic bymovirus (WSSMV) has been found in hard red, soft white and soft red winter wheats (1,2). Khan et al. (3) showed that resistance to WSSMV in cultivar Geneva seems to be controlled by a major gene on chromosome arm 2D L, they also developed two RFLP markers to assist breeders during marker assisted selection of WSSMV resistance.

Methods

RFLP markers Xcdo373 and Xbcd1095 are 12.4 cM apart  on the long arm of chromosome 2D and flanking the WSSMV resistance in Geneva cultivar (3). The experimental procedures used to detect the markers are the standard laboratory methods for RFLP, for more details you can visit Mark Sorrells' protocols webpage

References

1. Registration of KS92WGRC21 and KS92WGRC22 hard red winter wheat germplasms resistant to wheat spindle-streak mosaic virus, wheat soilborne mosaic virus, and powdery mildew.. Cox, T.S.; Sorrells, M.E.; Bergstrom, G.C.; Sears, R.G.; Gill, B.S.; Walsh, E.J.; Leath, S.; Murphy, J.P. In:Crop Science, 1994. 34(2):546-546.

2. Identification of winter wheat cultivars and experimental lines resistant to wheat spindle streak mosaic virus . Haufler, K.Z.; Fulbright, D.W. In: Plant Disease, 1986. 70:31-33

3. Identification of RFLP markers for resistance to wheat spindle streak mosaic bymovirus (WSSMV) disease. Khan, A. A.; Bergstrom, G. C.; Nelson, J. C.; Sorrells, M. E In: Genome, 2000. 43(3):477-482. [abstract]

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