Table 4.

Candidate genes within the identified regions controlling kernel length and their putative physiological roles.

QTL loci	SNP	Gene	Protein	Function	Reference
QKLpur-1D	S1D_445262848	TraesCS1D01G363700	Beta-galactosidase	Regulate cytokinins	Song et al., 2010
QKLpur-2A.2	S2A_719213280	TraesCS2A01G483000	Glycosyltransferase	Role in the biosynthesis of oligosaccharides, polysaccharides, and glycoconjugates	Breton et al., 2006; Lairson et al., 2008
QKLpur-3A.1	S3A_593313534	TraesCS3A01G343800	Photosystem I reaction center subunit VIII	Photosynthesis	Vinyard et al., 2013; Caffarri et al., 2014
QKLpur-3A.2	S3A_700575251	TraesCS3A01G467300	E3 ubiquitin-protein ligase BRE1-like 2	Role in ubiquitin pathway	Li and Li, 2014
QKLpur-3A.2	S3A_700575251	TraesCS3A01G467000	Late embryogenesis abundant (LEA) protein	Role in desiccation tolerance
QKLpur-3A.3	S3A_700575251	TraesCS3A01G469200	Late embryogenesis abundant (LEA) protein	Role in desiccation tolerance
QKLpur-6A	S6A_131449965	TraesCS6A01G149200	Ubiquitin-conjugating enzyme	Role in ubiquitin pathway	Li and Li, 2014
QKLpur-6D	S6D_436639209	TraesCS6D01G334300	Protein pelota homolog	Role in meiotic cell division	Eberhart and Wasserman, 1995; Caryl et al., 2000
QKLpur-7A.3	S7A_691163936	TraesCS7A01G501600	RING/U-box superfamily protein	Role in ubiquitin pathway	Yee and Goring, 2009