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Annotated Information


Using laser microdissection and microarrays, it was found that expression of PANICLE PHYTOMER2(PAP2) and three APETALA1(AP1)/FRUITFULL(FUL)-like genes (MADS14,MADS15, andMADS18) is induced in the shoot apical meristem(SAM) during meristem phase transition in rice(Oryza sativa). PAP2 physically interacts with MAD14 and MADS15 in vivo. It proposes that PAP2 and the three AP1/FUL-like genes coordinately act in the meristem to specify the identity of the inflorescence meristem(IM) downstream of theflorigen signal. Expression of both MADS14 and MADS15, which encode AP1/FUL-like MADS domain proteins, was suppressed in Hd3a and RFT1 double knockdown plants, suggesting that these genes function downstream of the florigen signal. MADS14andMADS15may be regulators of phase transition in the meristem.


MADS14 is coexpressed with other MADS-box genes, namely, MADS15(Os07g0108900), MADS18(Os07g0605200) and MADS34(Os03g0753100) and encode APETALA1/FRUITFUL-like MADS domain protein. Expression of both MADS14 and MADS15 was suppressed in Hd3a and RFT1 double knockdown plants.


THe sequence of MADS14 is significantly high homology with MADS15 and MADS18. In the rice genome,MADS14, MADS15, and MADS18 are classified as AP1/FRUITFULL(FUL)-like (or A-class) genes, and LEAFY HULL STERILE1(LHS1/MADS1), MADS5, MADS7(also called MADS45), MADS8(also called MADS24), and MADS34 are classified as SEPALLATA-like (SEP-like; or E-class) genes. MADS4 and SPW1 are B-class genes. MADS3 and MADS58 are D-class genes.

Labs working on this gene

1、Graduate School of Agriculture and Life Sciences, University of Tokyo, Yayoi, Bunkyo, Tokyo 113-8657, Japan

2、National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan

3、Crop Development Division, National Agricultural Research Center, National Agriculture and Food Research Organization, Jo-etsu, Niigata 943-0193, Japan

4、Rice Research Division, National Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba 305-8518, Japan

5、Rice Biotechnology Research Subteam (Hokuriku Region), National Agricultural Research Center, National Agriculture and Food Research Organization, Niigata 943-0193, Japan

6、Division of Genome and Biodiversity Research, National Institute of Agrobiological Sciences, Ibaraki 305-8602, Japan


1、Inflorescence Meristem Identity in Rice Is Specified by Overlapping Functions of Three AP1/FUL-Like MADS Box Genes and PAP2, a SEPALLATA MADS Box Gene. Kaoru Kobayashi, Naoko Yasuno, Yutaka Sato, Masahiro Yoda, Ryo Yamazaki, Mayumi Kimizu, Hitoshi Yoshida, Yoshiaki Nagamura, Junko Kyozuka Plant Cell. 2012 May; 24(5): 1848–1859. Published online 2012 May 8. doi: 10.1105/tpc.112.097105

2、RiceFREND: a platform for retrieving coexpressed gene networks in rice. Yutaka Sato, Nobukazu Namiki, Hinako Takehisa, Kaori Kamatsuki, Hiroshi Minami, Hiroshi Ikawa, Hajime Ohyanagi, Kazuhiko Sugimoto, Jun-Ichi Itoh, Baltazar A. Antonio, Yoshiaki Nagamura Nucleic Acids Res. 2013 January; 41(D1): D1214–D1221. Published online 2012 November 23. doi: 10.1093/nar/gks1122

3、MOSAIC FLORAL ORGANS1, an AGL6-Like MADS Box Gene, Regulates Floral Organ Identity and Meristem Fate in Rice. Shinnosuke Ohmori, Mayumi Kimizu, Maiko Sugita, Akio Miyao, Hirohiko Hirochika, Eiji Uchida, Yasuo Nagato, Hitoshi Yoshida Plant Cell. 2009 October; 21(10): 3008–3025. doi: 10.1105/tpc.109.068742

4、Rice MADS6 Interacts with the Floral Homeotic Genes SUPERWOMAN1, MADS3, MADS58, MADS13, and DROOPING LEAF in Specifying Floral Organ Identities and Meristem Fate. Haifeng Li, Wanqi Liang, Yun Hu, Lu Zhu, Changsong Yin, Jie Xu, Ludovico Dreni, Martin M. Kater, Dabing Zhang Plant Cell. 2011 July; 23(7): 2536–2552. Published online 2011 July 22. doi: 10.1105/tpc.111.087262

5、Hd3aand RFT1are essential for flowering in rice. Komiya, R., Ikegami, A., Tamaki, S., Yokoi, S., and Shimamoto, K. Development.2008 135:767–774.

6、A gene network for long-day flowering activatesRFT1encoding a mobile flowering signal in rice. Komiya,R.,Yokoi,S.,andShimamoto,K。 Development. 2009 136:3443–3450.

7、14-3-3 proteins act as intracellular receptors for rice Hd3a florigen. Taoka, K. et al. Nature. 2011 476:332–335.

8、PANICLE PHYTOMER2 (PAP2), encoding a SEPALLATA subfamily MADS-box protein, positively controls spikelet meristem identity in rice. Kobayashi, K., Maekawa, M., Miyao, A., Hirochika, H., and Kyozuka, J. Plant Cell Physiol. 2010 51:47–57

Structured Information