Meeting the Challenge of Yellow Rust in Cereal Crops - ICARDA

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338 Table 1. Yellow rust differentials, cultivars and their responses in the four main regions during 2004–2008 in Iran No. Line Yr gene North West Centre East 1 Chinese 166 Yr1 R R R R 2 Lee Yr7 S S S S 3 Heines Kolben Yr2 S S S S 4 Vilmorin 23 Yr3 R R R R 5 Moro Yr10 R R R R 6 Strubs Dikkopf YrSD R S R R 7 Suwon 92/Omar YrSU R R S R 8 Clement Yr2,Yr9, + R R R R 9 Hybrid 46 Yr4 R R R R 10 Reichersberg 42 Yr7+ R R R R 11 Heines Peko Yr2,Yr6, + R R R R 12 Nord Desprez YrND R R R R 13 compare Yr8+ R R R R 14 Carstens V YrCV R R R R 15 Spalding Prolific YrSP S S S R 16 Heines VII Yr2+ R R S R 17 Triticum spelta var. album Yr5 R R R R 18 Anza YrA+ S S S S 19 Jupateco ‘73R’ Yr18 R R R R 20 Jupateco ‘73S’ S S S S 21 Avocet ’R’ YrA S S S S 22 Avocet "S" S S S S 23 Kalyansona Yr2 S S S R 24 Federation *4/Kavkaz Yr9 S S S S 25 Federation S S S S 26 Trident(=Spear*4/VPM1) S S S S 27 TP981 S R S R 28 TP1295 Yr25 S S S S 29 Meering + Yr24 Yr24 S S S S 30 Meering S R S R 31 Yr1/6*Avocet "S" Yr1 R R R R 32 Yr5/6*Avocet "S" Yr5 R R R R 33 Yr6/6*Avocet "S" Yr6 S S S S 34 Yr7/6*Avocet "S" Yr7 S S S S 35 Yr8/6*Avocet "S" Yr8 S S S R 36 Yr9/6*Avocet "S" Yr9 S S S S 37 Yr10/6*Avocet "S" Yr10 R R R R 38 Yr15/6*Avocet "S" Yr15 S S S S 39 Yr17/6*Avocet "S" Yr17 R R S R 40 Yr18/6*Avocet "S" Yr18 R R R R 41 YrSP/6*Avocet "S" YrSP R R R R 42 YrSK/6*Avocet "S" Yr27 R S S R 43 Avocet ‘R’ YrA S S S S NOTES: R = Resistant; S = Susceptible.
Sources of resistance to wheat stripe [yellow] rust resistance in elite germplasm in Iran F. Afshari, S.A.. Safavi, M. Ata Hosaini and Sh. Ebrahim Nejad Seed and Plant Improvement Institute (SPII), Karaj, Islamic Republic of Iran Abstract Stripe (yellow) rust is the most important disease in the major wheat growing regions in Iran. In the 2007/08 cropping season, ten lines of ERWYT-C, 20 lines of ERWYT-N and 16 lines of ERWYT-M were tested for resistance to stripe rust at the adult plant stage at four sites. The lines were planted in two 1-m long rows with 30 cm between lines. A susceptible wheat cultivar (Bolani) was planted as spreader around the field and among the rows. The susceptible cultivar was artificially inoculated. Field assessments were based on disease severity according to the modified Cobb scale and disease reaction. The results showed that 7 lines of ERWYT-C were susceptible and remaining lines were resistant. For ERWYT-N, 12 lines were found resistant in all sites. In a separate seedling test of ERWYT-N material with the pathotype 166E6A+, all lines were found resistant. The results showed also that nine lines of ERWYT-M were susceptible as seedlings but resistant as adults. This indicates that these lines have expressed adult plant resistance. 339 Introduction Common wheat is the most important source of energy in the world. Wheat is a host for many groups of parasites and major threats to wheat production on a worldwide basis come from one or more of the three rust diseases. Stripe (yellow) rust is the most important disease of wheat in the West Asia and North Africa (WANA) region. Use of resistant cultivars is the best method of the disease control. Multilocational disease testing is used to obtain data to support breeding strategies aimed at broadening the genetic base of resistance in CIMMYT germplasm. Assuming a broad-based resistance, this material should also serve as useful germplasm for local breeding programmes. Gene postulation based on comparative response data from multi-pathotype tests (Dinoor and Peleg, 1972; Day, 1974; Browder and Eversmeyer, 1980) and genetic and cytogenetic analyses of segregating hybrid populations make up
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Meeting the Challenge of Yellow Rus
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iii Foreword Wheat is grown on roug
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v Preface The Central and West Asia
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vii About this publication This vol
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ix 2nd Regional Yellow Rust Confere
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Meeting the Challenge of Yellow Rus
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4 Epidemiology of wheat yellow rust
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6 Prevalent yellow rust pathotypes
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8 Pakistan Dr Badaruddin Soomro, PA
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10 Dr Naeem Ahmad, Wheat Research I
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Yellow rust of wheat in Nepal: an o
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inoculum originating from infected
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17 Control Efforts were made to dev
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Karki, C.B. 1994. Genetics of rust
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No virulence was observed on plants
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23 Results and discussion In the tw
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Virulence to yellow rust resistance
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and Yr27, the seedling data may not
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Yield evaluations of the PBW 343- a
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variation for yellow rust resistanc
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A number of Kauz-derived cvs, e.g.
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Kisana, S.N., Mujahid, Y.M. & Musta
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37 Material and methods Wheat nurse
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Challenge of a new race of Puccinia
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41 Table 1. Response of the yellow
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43 Occurrence and importance of yel
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To better explain the differences i
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Weather data were taken from the ne
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Disease progress stopped, in genera
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Roelfs, A.P. 1985. Epidemiology in
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The wheat stripe rust pathogen over
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55 6E150A+ 4E8A+ 6E130A+ 130E2A+ 6E
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Agriculture-guided evolution of pat
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Yr SD, Yr SU and YrA was observed.
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The data presented in Table 3 show
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Kirmani, M.A.S. 1980. Comparative e
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ust infection at the CIMMYT station
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67 Table 1. Estimation of the numbe
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Resistance to stripe rust disease o
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may be from the Aegilops parent as
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McNeal, F.H., Konzak, C.F., Smith,
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Disease severity (percentage of rus
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77 Table 2. Genetic analysis of res
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Defence mechanisms against rust, an
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for the biosynthesis of a large num
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components of the signalling pathwa
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Xing, T., Wang, X.J., Malik, K. & M
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provided for final decision regardi
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spreader, cv. Morocco. The data was
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91 Table 4A. Entries included in Na
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93 Table 5A. Entries in the Nationa
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95 References Ahmad, S., Rodriguez,
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Yellow rust (YR) is one of the most
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99 Table 1. Yellow rust reaction of
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101 100 90 80 CHECKS IW IWWIP CAC E
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• To investigate the effectivenes
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105 Figure 1. Locations of yellow r
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Table 2. Terminal reaction of diffe
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Isogenic lines possessing Yr9 and Y
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Inqilab 91 at Nowshera, Swabi and M
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Selection of yellow rust-resistant
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These genotypes—depending on the
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Reaction of some international whea
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nurseries were irrigated with mist
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Name Pedigree Source 23 Tevee'S'//B
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Name Pedigree Source 71 NS732/HER S
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Name Pedigree Source 41 Gcn/4/D68-1
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127 Role of yellow rust-resistance
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genes, such as with Yr6 in cultivar
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Dubin, H.J., Johnson, R. & Stubbs,
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134 Yellow rust of wheat in Ethiopi
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136 Virulence of stripe rust on dif
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138 Turkey, Lebanon and Syria. Race
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140 Evaluation of seedling and adul
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142 of resistance not only to yello
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144 Yellow rust reaction, disease d
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146
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148 Outputs of the ten years of eva
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150 Characterization of resistance
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152 Results of testing winter wheat
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154 Dr Valentina Ibragimoval, Kyrgy
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156 Surveys of yellow rust populati
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158 nurseries. ICARDA, at its headq
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160 Table 2. Yellow rust differenti
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162 Table 4. Selected elite cultiva
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164 Table 7 shows the relative effe
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166 Table 8. Field reaction of whea
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168 Syria, Lebanon, Iran and Turkey
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170 Regional Conference on Yellow R
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172 moderate and high levels of res
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174 Umanka. The same disease reacti
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176 genes Yr1, Yr2, Yr6, Yr7, Yr8 a
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178 Table 3. Resistance to yellow r
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180 Monitoring bread wheat genotype
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182 3000 masl. Susceptible check cv
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184 Table3. Disease severity and re
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186 with great effect, particularly
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188 Conclusion Relatively old bread
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191 Abstracts of other papers prese
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193 Global perspectives in wheat ye
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195 Yellow rust in Central and West
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197 Outputs of the ten-year evaluat
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199 Yellow rust resistance of bread
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201 Influence of weather conditions
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203 Virulent pathotypes of yellow r
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associated with a greater yielding
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een based on a single major gene or
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209 Monitoring stripe [yellow] rust
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211 Pathotype and molecular variabi
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Functional analysis of yellow rust
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215 Study on resistance reaction of
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217 Resistance of International Win
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219 Researching the influence of an
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Australian pathotypes of Puccinia s
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and cultural practices have been ad
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225 Development of a detached leaf
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227 Virulence variation of Puccinia
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intervals and also as the border of
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231 Virus-induced gene silencing in
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233 Inheritance of resistance to ye
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generated from monogenically segreg
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• slow-rusting genes: Yr9, Yr12,
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239 Meeting the Challenge of Yellow
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241 Contents List of participants i
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Resistance response of promising wh
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Constructing physical and genomic m
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Inheritance of yellow rust resistan
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249 Algeria List of participants Dr
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Tajikistan Prof. Dr Hafiz Muminjano
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Identification of effective and dur
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For each resistant genotype (Table
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257 Figure 1. AUDPC of ineffective
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259 Figure 3. AUDPC of susceptible
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Among the wheat lines tested, 51% c
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263 Introduction Wheat (Triticum ae
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wheat germplasm lines from were tes
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An analysis of the 2009 epidemic of
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Overall yield loss estimation A gen
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271 Table 4a. Monthly mean temperat
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Further studies on Yr9 virulent pat
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evaluation, these varieties were ha
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277 Table 1. Genotype response to p
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may result in losses of up to 70% i
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Table 1A. Wheat yellow rust scenari
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283 Table 1C. Wheat yellow rust sce
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285 No. Cultivar/Yr genes Yellow ru
Page 297 and 298: Roelfs, A.P., Singh. R.P. & Saari,
Page 299 and 300: 289 Materials and methods This stud
Page 301 and 302: ineffective (Yahyaoui et al., 2004)
Page 303 and 304: Combining high yield potential and
Page 305 and 306: Breeding for yellow rust-resistant
Page 307 and 308: It is evident from Table 3 that Lu2
Page 309 and 310: 299 Table 4. Rust reactions in hot-
Page 311 and 312: Evaluation of Indian wheat genotype
Page 313 and 314: components individually is quite la
Page 315 and 316: 305 Table 1. Grouping of AVT-2nd ye
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Page 335 and 336: In comparison with the local variet
Page 337 and 338: 327 Introduction Wheat (Triticum ae
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Page 347: combinations of adult plant resista
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Page 355 and 356: 345 Introduction Stripe Rust of whe
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Page 359 and 360: Dehghani, H., Moghadam, M.R., Ghann
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Page 365 and 366: Breeding for resistance to rust dis
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Page 369 and 370: 359 References Dzhunusova, M., Yahy
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Page 375 and 376: Of the yellow rust samples collecte
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Page 379 and 380: 369 Monitoring pathogen dynamics in
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Page 383 and 384: 373 Race changes of Puccinia striif
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Page 387 and 388: types with race Pst-3 than with Pst
Page 389 and 390: 379 Investigation of genetic resist
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Page 393 and 394: 383 Molecular characterization of w
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2000 masl; Ae. cylindrica is locate
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391 Reaction of winter facultative
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393 Yellow rust in the south of Ukr
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395 Study of diverse winter wheat g
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397 Yellow rust epidemics and virul
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399 Wheat yellow rust situation in
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401 Inheritance of yellow rust resi
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infection of the pathogen for four
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Club and other susceptible wheat cv
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407 Selection of wheat cultivars fo
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conditions. In 2006 and 2008, due t
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411 Regulation of development of ye
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Meeting the Challenge of Yellow Rust in Cereal Crops - ICARDA

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