Disease Resistance Evaluation of Elite CIMMYT Wheat Lines Containing the Coupled Fhb1 and Sr2 Genes

Plant Disease
Xinyao HePawan Kumar Singh

Abstract

Fusarium head blight (FHB) and stem rust are among the most devastating diseases of wheat worldwide. Fhb1 is the most widely utilized and the only isolated gene for FHB resistance, while Sr2 is a durable stem rust resistance gene used in rust-prone areas. The two loci are closely linked on the short arm of chromosome 3B and the two genes are in repulsion phase among cultivars. With climate change and the shift in Fusarium populations, it is imperative to develop wheat cultivars resistant to both diseases. The present study was dedicated to developing wheat germplasm combining Fhb1 and Sr2 resistance alleles in the International Maize and Wheat Improvement Center (CIMMYT)'s elite cultivars' backgrounds. Four recombinant inbred lines (RILs) in Hartog background that have the resistant Fhb1 and Sr2 alleles in coupled phase linkage were crossed with seven CIMMYT bread wheat lines, resulting in 208 lines. Molecular markers for both genes were employed in addition to the use of pseudo-black chaff (PBC) as a phenotypic marker for the selection of Sr2. At various stages of the selection process, progeny lines were assessed for FHB index, Fusarium damaged kernels (FDK), stem rust, and PBC expression as well as other diseases of interest...Continue Reading

References

Nov 29, 2005·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·R KotaE S Lagudah
Oct 24, 2008·Phytopathology·D A Shah, L V Madden
Nov 10, 2010·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·R MagoW Spielmeyer
May 17, 2011·Annual Review of Phytopathology·Ravi P SinghVelu Govindan
May 17, 2011·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·R MagoW Spielmeyer
Jan 10, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Ping LuZhiyong Liu
Jun 15, 2016·Annual Review of Phytopathology·Ravi P SinghJulio Huerta-Espino
Oct 19, 2017·Molecular Plant Pathology·Melania FigueroaPeter S Solomon
Aug 24, 2018·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Zhenqi SuGuihua Bai
Dec 19, 2018·International Journal of Molecular Sciences·Pawan Kumar SinghRavi Prakash Singh
Dec 1, 2012·Plant Disease·Marcia McMullenDave Van Sanford
Dec 1, 1997·Plant Disease·Marcia McMullenDale Gallenberg

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