Figure 3. Expressional profiles of auxin biosynthesis related
genes and changes of IAA in grains of WYJ8 plant andRGB1Ri line and effects of application of NAA on starch
biosynthesis
(a) Heat maps of differentially expressed genes (DGEs) involved
in auxin biosynthesis. The maps were plotted using the value of RPKM for
each gene in the different samples: blue indicates low values, red
indicates high values. The indicated scale is the log2 value of the
normalized level of gene expression. (b) Changes of IAA level
in rice endosperm cells of different genotypes during grain filling
stage. (c) Effects of exogenous auxin (NAA) application on
starch accumulation of grains of different genotypes. (d)Effects of exogenous auxin (NAA) application on grain weight of
different genotypes. (e) Effects of exogenous auxin (NAA)
application on the expression of genes related to sucrose metabolism and
starch biosynthesis at 10 DAF. Data are shown as means ± SDs (n = 5).