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GrainGenes Reference Report: TAG-135-1355

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Reference
TAG-135-1355
Title
Mining the Vavilov wheat diversity panel for new sources of adult plant resistance to stripe rust
Journal
Theoretical and Applied Genetics
Year
2022
Volume
135
Pages
1355-1373
Author
DT Jambuthenne
[ Show all 14 ]
Abstract
Wheat stripe rust (YR) caused by Puccinia striiformis f. sp. tritici (Pst) poses a significant threat to global food security. Resistance genes commonly found in many wheat varieties have been rendered ineffective due to the rapid evolution of the pathogen. To identify novel sources of adult plant resistance (APR), 292 accessions from the N.I. Vavilov Institute of Plant Genetic Resources, Saint Petersburg, Russia, were screened for known APR genes (i.e. Yr18, Yr29, Yr46, Yr33, Yr39 and Yr59) using linked polymerase chain reaction (PCR) molecular markers. Accessions were evaluated against Pst (pathotype 134 E16 A + Yr17 + Yr27) at seedling and adult plant stages across multiple years (2014, 2015 and 2016) in Australia. Phenotypic analyses identified 132 lines that potentially carry novel sources of APR to YR. Genome-wide association studies (GWAS) identified 68 significant marker-trait associations (P < 0.001) for YR resistance, representing 47 independent quantitative trait loci (QTL) regions. Fourteen genomic regions overlapped with previously reported Yr genes, including Yr29, Yr56, Yr5, Yr43, Yr57, Yr30, Yr46, Yr47, Yr35, Yr36, Yrxy1, Yr59, Yr52 and YrYL. In total, seven QTL (positioned on chromosomes 1D, 2A, 3A, 3D, 5D, 7B and 7D) did not collocate with previously reported genes or QTL, indicating the presence of promising novel resistance factors. Overall, the Vavilov diversity panel provides a rich source of new alleles which could be used to broaden the genetic bases of YR resistance in modern wheat varieties.
External Databases
https://doi.org/10.1007/s00122-022-04037-8
Locus
DArT1219437
[ Show all 65 ]
Probe
[ Hide all but 1 of 65 ]
DArT1219437
DArT1119286
DArT1862252
DArT1229892
DArT2295954
DArT1255550
DArT1093102
DArT1122504
DArT1862406
DArT1183380
DArT2289349
DArT1235357
DArT1233396
DArT3064531
DArT2322232
DArT981525
DArT1046333
DArT2322248
DArT1236960
DArT1117771
DArT1337290
DArT1296890
DArT1297955
DArT4663965
DArT1298829
DArT2246033
DArT2338436
DArT2243695
DArT1123104
DArT2253468
DArT2295584
DArT1116501
DArT1237203
DArT2307351
DArT1239212
DArT1120960
DArT1131408
DArT3021792
DArT1117919
DArT1127003
DArT1088238
DArT1125706
DArT1104944
DArT1128792
DArT1107669
DArT991465
DArT3022417
DArT1302727
DArT1097180
DArT1121581
DArT1229248
DArT2290856
DArT1058394
DArT2293763
DArT1109194
DArT1244188
DArT1090077
DArT1126816
DArT1059624
DArT1259637
DArT1298605
DArT3026338
DArT1159261
DArT1105401
DArT2303363
QTL
qNV.Yr-1B.1
[ Show all 46 ]

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