Table 1

Changes in gene expression are correlated with changes in histone H3 methylation patterns in ddm1 mutants. Changes in the association of genes and transposons with methylated histone H3 in ddm1 mutants were scored as “H3mK9 to H3mK4” if they lost association with H3mK9, gained association with H3mK4, or both (Fig. 3). Expression levels were estimated by RT-PCR (Fig. 2). Changes of 10-fold or greater were scored as an increase in ddm1. n.d., not detected.

Histone H3 methylationExpression
UnchangedIncreasedn.d.
H3mK9 to H3mK48204
Unchanged234
n.d.632