Relationship between days to heading and genotypes of <i>WPCL1</i> and <i>Vrn-1</i> loci in an F₂ population derived from ‘Geurumil’ and ‘Minaminokomugi’.

<p>(a) Comparison of days to heading between genotypes of <i>WPCL1</i> homoeoloci in the 489 F₂ plants. Days to heading indicate the number of days after April 1. Arrows show the heading date in ‘Chogokuwase’ (C), ‘Geurumil’ (G) and ‘Minaminokomugi’ (M), respectively. White boxes indicate the plants carrying homozygous <i>wpcl1</i> alleles at three homoeoloci. Black boxes show the plants carrying functional <i>WPCL-B1</i> and<i>/</i>or <i>WPCL-D1</i> alleles. (b) A subset of the segregating population having the triple recessive <i>wpcl1</i> alleles. Comparison of days to heading between genotypes of the <i>Vrn-D1</i> locus in 25 F₂ plants with three loss-of-function <i>wpcl1</i> homoeoalleles.