Seedling development traits in Brassica napus examined by gene expression analysis and association mapping

BMC Plant Biology

Table 1 Seedling development traits assessed in the rapeseed diversity set, where h ² is the repeatability and R ² the proportion of the phenotypic variance explained by population structure

Traits	Abbreviation	Unit of measurement	h ²	R ² (MCLUST)
Projected leaf area at day 8	LA08	cm²	0.82	0.48
Projected leaf area at day 10	LA10	cm²	0.84	0.44
Projected leaf area at day 12	LA12	cm²	0.81	0.43
Projected leaf area at day 14	LA14	cm²	0.76	0.41
Projected leaf area at day 16	LA16	cm²	0.73	0.39
Parameter a	PRA	cm²	0.51	0.24
Parameter k	PRK	1/day	0.28	0.00
Plant perimeter length	PER	cm	0.80	0.41
Plant major axis of the best fitting ellipse	MAJ	cm	0.82	0.43
Plant minor axis of the best fitting ellipse	MIN	cm	0.78	0.36
Plant aspect ratio: major axis/minor axis	ASR		0.56	0.17
Maximum plant diameter	MAD	cm	0.82	0.43
Minimum plant diameter	MID	cm	0.81	0.38
Plant circularity: 4 π(area/perimeter²)	CIR		0.33	0.09
Plant roundness: 4area/(πmajor axis²)	ROU		0.52	0.16
Plant solidity: area/convex area	SOY		0.52	0.14
Fresh mass	FHM	g	0.69	0.27
Dry mass	DYM	g	0.72	0.35
SPAD measurement	SPD		0.77	0.33
H₂O content	H2O	% of fresh mass	0.39	0.27

ISSN: 1471-2229