Table 3 QTL models for phytoseiid counts, domatia size and rating, bristle, and hair densities

From: A QTL associated with leaf trichome traits has a major influence on the abundance of the predatory mite Typhlodromus pyri in a hybrid grapevine population

Phenotype

Year

Sample size

PVEa

Model

Phytoseiid (counts)

2005

147

23.8

20@37.9 + 37@0.9b

2006

147

24.7

20@40.6

2007

143

11.1

20@32.4

2008

152

54.0

20@37.3 + 1@68.3b

Domatia (rating)

2004

190

38.5

20@42.0 + 34@29.0

2005

155

14.5

20@37.6

2008

152

46.8

20@41.0 + 34@29.8 + 18@32.0b + 1@47.0b

Domatia (mm)

2004

190

43.0

20@37.0 + 34@31.0 + 23@12.7b

2005

154

13.0

20@37.6

2008

152

50.9

20@38.3 + 34@22.0 + 10@9.7b + 18@20.7b + 37@24.6b

Bristles on veins (density)

2004

190

63.2

20@41.8 + 1@67.2 + 8@72.4b

2005

155

44.1

20@37.6 + 1@56.0

2008

152

61.8

20@47.3 + 1@65.8

Bristles on leaf blades (density)

2004

190

55.0

20@41.8 + 1@77.5 + 15@27.9

2005

155

42.7

20@43.0 + 19@69.9b + 1@61.0

2008

152

69.4

20@45.0 + 15@26.0 + 1@68.3 + 36@41.0b

Hair on leaf veins (density)

2004

190

25.8

20@43.5

2005

155

31.9

20@37.6 + 35@62.0b + 2@50.0

2008

152

40.2

20@35.0 + 27@56.7b + 2@47.0

Hair on leaf blades (density)

2004

190

49.5

24@5.0 + 20@42.2 + 5@4.3 + 35@65.0b + 27@60.3 + 24@5.0 : 5@4.3b

2005

155

15.6

24@5.0

2008

152

41.7

20@34.4 + 27@56.7 + 5@3.1 + 24@4.0

  1. QTL were named using R/qtl nomenclature, i.e., linkage group@position (cM). Linkage group numbers 1–19 correspond to chromosome numbers in the female map (‘Horizon’), and 20–38 correspond to chromosome numbers 1–19 in the male map (Illinois 547-1)
  2. : Indicates an interaction term between two QTL
  3. aPVE, percentage of variance explained by the model
  4. bQTL that were significant only on one date of evaluation