Fig. 3. Transcript analysis of SPA1, SPA2, SPA3 and
SPA4 in SD-grown plants. (A) RT-PCR analysis of all four
SPA genes in 25-day-old SD-grown wild-type (Col) plants. (B-E)
Quantification of the SPA transcript abundance of the blots shown in A. The
transcript levels of SPA genes were normalized by the transcript levels of
UBQ10. A representative experiment of two independent experiments is
shown.