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Molecular characterization of Fusarium resistance from Elymus repens introgressed into bread wheat

Fedak G., Cao W., Wolfe D., Chi D., Xue A.

 




SUMMARY. A cross was made of Elymus repens onto the wheat cultivar Crocus and BC1 progeny advanced to BC1F7 by single seed descent. Sixteen lines were selected based on agronomic performance and evaluated in an FHB epiphytotic nursery. Eight lines with FHB resistance were selected. Based on GISH analysis, line P1142-3-1-5 had 42 chromosomes with one pair of chromosomes showing telomeric translocations on both arms. This chromosome was identified as 3D by using SSR markers. An evaluation of lines with single translocations revealed that FHB resistance was contributed by the translocation on the long arm of chromosome 3D. That line has minimal linkage drag and should be amenable to applications in breeding for disease resistance.

Tsitologiya i Genetika 2017, vol. 51, no. 2, pp. 74-78

E-mail: George.fedak agr.gc.ca

Fedak G., Cao W., Wolfe D., Chi D., Xue A. Molecular characterization of Fusarium resistance from Elymus repens introgressed into bread wheat, Tsitol Genet., 2017, vol. 51, no. 2, pp. 74-78.

In "Cytology and Genetics":
G. Fedak, W. Cao, D. Wolfe, D. Chi, A. Xue Molecular characterization of Fusarium resistance from Elymus repens introgressed into bread wheat, Cytol Genet., 2017, vol. 51, no. 2, pp. 130133
DOI: 10.3103/S0095452717020025


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