An integrated linkage map of interspecific backcross 2 (BC2) populations reveals QTLs associated with fatty acid composition and vegetative parameters influencing compactness in oil palm

Table 6 QTLs detected using both Genstat and MapQTL

QTL	Marker	Segregation Type	Genestat^a			MapQTL
QTL	Marker	Segregation Type	LG	Position (cM)	LOD Score for Genestat	LOD threshold for MapQTL	LOD score	Adjusted Phenotypic variation^d
HI	SNPM00563	aa x ab	4	4.3	7.77	3.4	5.69	30.7
HI	SNPM00010	aa x ab	7	111.9	3.76		4.36	29.7
RL	SNPM03201	aa x ab	4	11.3	3.79	3.3	3.0^b	14.4
	SNPM03772	aa x ab	8	92.6	3.17		4.28	22.8
	SNPM03676	ab x aa	11	38.7	4.17		3.05^b	16.4
PCS	SNPM00563	aa x ab	4	4.3	7.70	3.6	4.61	24.3
	SNPM02535	ab x ab	4	193.1	3.20		3.81	21.1
	sEg00213	ab x aa	8	139.9	3.81		3.94	24.2
C16:0	SNPM00796	aa x ab	1	133.4	3.59	3.6	4.20	28.7
C18:1	SNPM02507	aa x ab	4	169.2	3.44	3.3	4.33	29.8
	SNPM03249	ab x ab	8	44.0	3.19		4.25	29.3
	SNPM00274^c	aa x ab	12	31.4	5.97		–	–
C18:2	SNPM01602	ab x ab	1	124.9	4.62	3.6	3.31^b	21.6
	SNPM00249	ab x aa	4	3.4	8.19		5.55	34.2
	SNPM01190	ab x ab	15	70.3	5.14		3.80	26.1
IV	SNPM01452	ab x ab	1	132.5	13.02	3.5	8.93	49.5
IV	SNPM03285	aa x ab	15	98.1	5.98		8.51	39.8
Carotene	SNPM02349	ab x ab	3	4.4	5.12	3.7	3.9	26.0
	SNPM03960	ab x aa	7	108.5	3.73		3.75	31.7
	SNPM03921	ab x aa	10	77.4	3.63		4.20	27.7

HI Height increment, RL Rachis length, PCS Petiole cross section, C16:0 Palmitic acid content, C18:0 Stearic acid content, C18:1 Oleic acid content, C18:2 Linoleic acid content, IV Iodine value, Carotene Carotene content
^a Threshold for Genstat was LOD 3
^bSignificant chromosome-wide
^cSNPM00274 considered not significant, as association with C18:1 not reproducible in MapQTL
^dPercentage phenotypic variation for observed QTL corrected as in Methods

ISSN: 1471-2229