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ORIGINAL ARTICLE Alteration of floral organ identity in rice through ectopic expression
 

Summary: ORIGINAL ARTICLE
Alteration of floral organ identity in rice through ectopic expression
of OsMADS16
Received: 20 February 2003 / Accepted: 24 May 2003 / Published online: 2 August 2003
Springer-Verlag 2003
Abstract We used a transgenic approach and yeast two-
hybrid experiments to study the role of the rice (Oryza
sativa L.) B-function MADS-box gene, OsMADS16.
Transgenic rice plants were generated that ectopically
expressed OsMADS16 under the control of the maize
(Zea mays L.) ubiquitin1 promoter. Microscopic obser-
vations revealed that the innermost-whorl carpels had
been replaced by stamen-like organs, which resembled
the flowers of the previously described Arabidopsis tha-
liana (L.) Heynh. mutation superman as well as those
ectopically expressing the AP3 gene. These results indi-
cate that expression of OsMADS16 in the innermost
whorl induces stamen development. Occasionally, car-
pels had completely disappeared. In addition, ectopic
expression of OsMADS16 enhanced expression of

  

Source: An, Gynheung - Department of Life Science, Pohang University of Science and Technology

 

Collections: Biotechnology; Biology and Medicine