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Table 2 Comparison of TIGS effects between candidate-gene groups for quantitative host resistance (QR)

From: Discovery of genes affecting resistance of barley to adapted and non-adapted powdery mildew fungi

Selection criterion Family Entry a Repeated b Significant TIGS effect c
   Genes (n) Genes (n) Genes (n) % P d
Regulated Multiple 345 112 34 9.9 0.084
Random Multiple 87 33 4 4.6 -
Gene family ABC transporter 90 19 8 8.9 0.372
Cellulose-synthase like 22 15 5 22.7 0.016
LysM-, LRR-RLK 35 10 7 20.0 0.013
Class III Peroxidase 69 16 6 8.7 0.339
Proteasome lid comp. 51 17 3 5.9 0.709
U box-, RING-E3 ligase 36 7 4 11.1 0.231
Sweet sugar transporter 12 12 4 33.3 0.007
WKRY TF 58 16 7 12.1 0.116
QTL cie Multiple 109 31 8 7.3 0.554
Total   914 288 90 9.8 -
  1. aNumber of TIGS target genes for first screening round.
  2. bRelative to the number of genes targeted by repeated bombardments of TIGS constructs.
  3. cSignificant deviation from median value of all bombarded TIGS constructs (1-sample t-test, α 0.05, one-tailed).
  4. dTest for significant over-representation of specific gene groups associated with a TIGS effect, compared to the set of randomly selected genes (Fisher’s exact, one-tailed).
  5. eConfidence interval for resistance QTL on chromosome 5H (peak-marker LOD -1).