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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

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

Position W630 Homozygous genotype a J5
WWW CWW WCW WWC CCW CWC WCC CCC
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
  1. 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
  2. bLength reduction compared to W630
  3. cOverall averages given with different letters are significantly different among the eight genotypes and two parental lines (Tukey’s test, P < 0.05)