Figure 5.—

Comparison of candidate gene expression patterns in shoot apex tissue between parent populations of an elite × wild QTL cross. Expression was assayed by RT–PCR in shoot apices collected over a developmental time course for wild (Ann1238) and elite (CMSHA89) plants raised in long days. Plants were sown at day 0 and collection occurred every 10 days until day 40 for both lines. A collection at 60 days was also conducted for Ann1238. In addition, some Ann1238 plants (T30) were transferred from long days to short days at 20 days, and shoot apices were collected from these plants on day 30. Data from one of three biological replicates are shown. HaFT1 data are from Blackman et al. (2010).