Table I.

Genetic analysis of the phenotype of arad1 mutants

Monosaccharide composition of stem AIR was determined in wild-type (both Col-0 and qrt), arad1-1, arad1-2, and F1 plants of crosses between arad1-1 and wild type (qrt) and arad1-1 and arad1-2. The female parent was arad1-1 in both crosses. Genotype of the F1 plants was confirmed by PCR. The data (mean ± sd, n = 5) are expressed as mol% of Ara relative to mol% of Ara in Col-0. Numbers followed by the same letter are not significantly different at the 5% level (t test).

GenotypeRelative Ara Content
Col-01 ± 0.04 a
qrt0.97 ± 0.09 a
arad1-1/arad1-1 × qrt/qrt0.90 ± 0.11 a
arad1-1/arad1-1 selfed0.53 ± 0.04 b
arad1-2/arad1-2 selfed0.54 ± 0.02 b
arad1-1/arad1-1 × arad1-2/arad1-20.52 ± 0.04 b