Figure 1

Expression profiles of MAP kinase cascade genes including 70 MPKKK s, 7 MPKK s, and 17 MPK s in 28 tissues covering the entire life cycle of indica rice varieties Minghui 63 and Zhenshan 97. Data were obtained from a microarray database (http://www.ncbi.nlm.nih.gov; accession number GSE19024; Wang et al. 2010). Shoot at 2 tiller, shoot of seedling with two tillers; Leaf 1 and 2, at secondary branch primordium stage and 4-cm to 5-cm young panicle stage, respectively; Flag leaf 1 and 2, at 5 days before heading and 14 days after heading, respectively; Leaf and root at 3, at three-leaf stage; Plumule 1 and 2, at 48 hours after emergence under light and dark, respectively; Sheath 1 and 2, at secondary branch primordium stage and 4-cm to 5-cm young panicle stage, respectively; Stem 1 and 2, at 5 days before heading and heading stage, respectively; Embryo & radicle, embryo and radicle at 3 days after germination; Radicle 1 and 2, at 48 hours after emergence under light and dark, respectively; Root at 2 tiller, root of seedling with two tillers; Panicle 1, 2, 3, 4 and 5, at secondary branch primordium stage, pistil and stamen primordium differentiation stage, pollen–mother cell formation stage, 4-cm to 5-cm young panicle stage and heading stage, respectively; Stamen, at 1 day before flowering; Spikelet, at 3 days after pollination; Hull, at 1 day before flowering; Endosperm 1, 2 and 3, at 14 days after heading, 7 days after pollination and 21 days after pollination, respectively; Geminating seed, germinating seed at 72 hours of imbibitions. Expression levels (log2 transformations of average signal values) are color-coded: red and green denote high expression and low expression, respectively. (a) leaf-preferred genes. (b) Ubiquitously expressed genes. (c) Other tissue-preferred genes.