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Susceptibility to Ug99

Susceptibility to Ug99. Results from 2006 Kenya: Country %R ICARDA-WANA 9 Egypt 2 Iran 2 Pakistan 8 Nepal 2 India 9 Bangladesh 6 Kazakhstan 2. Wheat consumption per capita :185kg (  400lb). Spring wheat reaction to TTKS (based on seedling tests).

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Susceptibility to Ug99

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  1. Susceptibility to Ug99 Results from 2006 Kenya: Country %R ICARDA-WANA 9 Egypt 2 Iran 2 Pakistan 8 Nepal 2 India 9 Bangladesh 6 Kazakhstan 2 Wheat consumption per capita:185kg ( 400lb)

  2. Spring wheat reaction to TTKS (based on seedling tests) ** US spring wheat CVs of Northern Great Plains released after 1996: All susceptible to TTKS except:Ivan, Keene, Banton, Ember. All, except Ember, susceptible to TTKS+Sr24v (TTKST). Resistance to 06 nursery Entries TTKSK TTKST Gene URN 32 2 0 Sr24 WSW 20 0 0 URSN 26 7 3 Sr24, Tha(abc)

  3. Genes effective against Ug99

  4. Genes effective against Ug99 in adapted US germplasm Sr2 -- Selkirk, Scott 66, Eagle Tha(abc) -- AC Barrie, Verde? Chris, Thatcher Tmp -- Hard red winter: Millennium, Riper, etc 1A.1R -- Hard red winter: TAM107, TAM200 Sr24 -- All classes Sr36 -- Soft red winer: Sisson, USG 3209, etc Sr25 -- a few breeding lines

  5. Stem Rust Resistance on 1RS 1RSk--Kavkaz (1BL.1RSk from Petkus rye, Sr31) 1RSk--Pavon 76 (1AL.1RSk)--Pavon-RS 1RSa--Amigo (1AL.1RSa from Insave rye) Is Sr resistance on 1RSa the same as 1RSk?

  6. Stem Rust Resistance on 1RS 1RS genotype TTTT TTKS TDTT Kavkaz (1RSk) 1 4 1; Pavon-RS (1RSk) 1 3+ 1 TAM 107 (1RSa) 1+ 2+ 3 Nekota-RS (1RSa) 2+ 2+ 3+ Stem rust resistance on1RSa is different from Sr31 Are they allelic? Can we develop recombinant with Sr resistance from both?

  7. Stem Rust Resistance on 1RS Cross Gen. TTTT TTKS Pavon-RS (1RSk) X CS F2 131R/38S 120S Nekota-RS (1RSn) X CS F2 88R/30S 83R/31S 1RSk X 1RSn F2 768R - (1RSk X 1RSn) X CS TC1F1 180R TC1F1 114R/1S

  8. Identifying recombinant of 1RS resistance TC1F2 of (1RSk X 1RSn) X CS Eliminate resistance of 1RSk by testing with TTKS Eliminate resistance of 1RSn by testing with TDTT Recombinant with resistance to TTKS and TDTT

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