Table 1.

A simplified summary of the genetic basis for variation in seed quality traits in pea.

Compound	Component	Locus/genes/QTL positions	Reference
Protein	Total protein	QTL (LG VI)	Tar’an et al., 2004
		SNP in O2like gene	Jha et al. (2015)
		QTL (LG I, III, IV, V, VI, VII)	Burstin et al. (2007)
		QTL (LG II, V, VII)	Irzykowska & Wolko (2004)
		QTL (LG V)	Krajewski et al. (2012)
	Vicilin	VicB, Vc-2-5 (LG II, III, V)	Lycett et al. (1983); Ellis et al., (1986)
		ABI5	Le Signor et al. (2017)
	Convicilin	Cvc (LG II)	Newbigin et al. (1990); Ellis et al., (1986)
	Legumin	Leg A-D, J-M, S (LG II, V)	Domoney et al. (1986); Turner et al., (1990); Turner et al. (1993); Kreplak et al. (2019)
	Lectin	LecA (LG VII)	Díaz et al., 1989; Domoney et al. (2013)
	Pea albumin 1	PA1 (LG VI)	Eyraud et al. (2013)
	Pea albumin 2	PA2 (LG VI)	Vigeolas et al. (2008)
	LOX-2	lox (LG III)	North et al. (1989)
	LOX-3
Starch		r (LG V)	Bhattacharyya et al. (1990)
		rb (LG III)	Hylton & Smith (1992)
		rug3 (LG II)	Harrison et al. (1998)
		rug4 (LG IV)	Bogracheva et al. (1999)
		rug5 (LG VI)	Craig et al. (1998)
		lam (LG II)	Bogracheva et al. (1999)
RFO	Raffinose	rfs (LG III)	Ellis et al. (2018)
	Stachyose	sts (LG V)	Ellis et al. (2018)
Dietary fibre		QTL (LG I, IV, V, VII)	Gali et al. (2018)
Iron		dgl, brz (LG IV)	Gottschalk. (1987); Grusak et al. (1990); Kneen et al. (1990)
		QTL (LG II, VII)	Ma et al. (2017)
		QTL (LG V, VII)	Diapari et al. (2015)
		QTL (LG III)	Gali et al. (2018)
Zinc		QTL (LG III)	Diapari et al. (2015); Ma et al. (2017); Gali et al. (2018)
Selenium		QTL (LG IV, V, VII)	Gali et al. (2018)
Phytate		LG V locus	Shunmugam et al. (2015)
			Gali et al. (2018)
Trypsin inhibitors		TI1 and TI2, QTL & Tri locus (LGV)	Domoney et al. (1994); Page et al. (2002); Clemente et al. (2015)

Note that the numbering of linkage groups has changed during the research period covered (Ellis and Poyser, 2002). Where possible, currently accepted linkage group numbers are cited, with reference to chromosome number (Kreplak et al., 2019) for some studies. Linkage groups cited for several starch-related loci are unpublished data.