Table 3.

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

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

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)

: Indicates an interaction term between two QTL

^aPVE, percentage of variance explained by the model

^bQTL that were significant only on one date of evaluation