Table 1.

Features of the QTLs associated with the resistance response to pea aphid (PA) in the A17×A20 M. truncatula RIL population

Trait	LOD	LG	Position	PEVa	Response mean	Effectb
AFWc	4.5	3	11.1 (9.1)	0.23 (0.07)	0.134 (0.003)	–0.024(0.005)
RPDWd	3.9	5	21.7 (18.2)	0.22 (0.07)	0.513 (0.014)	–0.11(0.022)

^a Proportion of explained variability.

^b The estimated effect; a positive value represents the effect of the A17 allele and a negative value represents the effect of the A20 allele.

^c Mean aphid fresh weight (g).

^d Relative reduction of plant dry weight caused by PA.