Evaluation of Domestication Loci Associated with Awnlessness in Cultivated Rice, Oryza sativa

Rice

Table 3 Average lengths and reduction percentages of the awns in the 1st to 5th spikelet positions of eight homozygous genotypes and the parental accessions of O. rufipogon W630 and the J5 line

Position	W630	Homozygous genotype ^a								J5
Position	W630	WWW	CWW	WCW	WWC	CCW	CWC	WCC	CCC	J5
Awn length (mm)
1st	71.5	70.9	59.8	54.0	57.9	53.0	51.0	29.8	24.4	16.5
2nd	59.3	62.8	52.8	40.4	39.6	36.8	36.6	14.9	9.9	8.1
3rd	75.1	78.7	67.9	53.2	51.9	52.1	47.2	22.2	15.5	11.3
4th	89.3	89.1	78.5	62.8	70.0	65.0	60.3	30.7	23.1	16.6
5th	99.3	98.1	87.4	69.2	76.4	72.2	67.5	36.7	27.8	17.5
Perecentage of reduction ^b
1st	0	0.8	16.4	24.5	19.0	25.8	28.7	58.4	65.9	76.9
2nd	0	−5.8	10.9	31.9	33.2	38.0	38.3	74.9	83.3	86.4
3rd	0	−4.8	9.6	29.2	30.9	30.6	37.2	70.5	79.3	84.9
4th	0	0.2	12.1	29.7	21.6	27.2	32.5	65.6	74.2	81.4
5th	0	1.2	12.0	30.3	23.0	27.2	32.0	63.0	72.0	82.4
Average ^c	0	−1.7	12.2	29.1	25.5	29.8	33.8	66.5	74.9	82.4
	a	a	b	c	c	c	c	d	de	e

^aEight genotypes were designated by three-letter combinations of W or C in genotypic order at qAWNL2, An-1 and LABA1, where W and C indicate wild and cultivated homozygous alleles, respectively
^bLength reduction compared to W630
^cOverall averages given with different letters are significantly different among the eight genotypes and two parental lines (Tukey’s test, P < 0.05)