Plant Physiology Preview
Published on April 20, 2007; 10.1104/pp.107.098558
OPEN ACCESS ARTICLE
Received February 26, 2007
Accepted April 11, 2007
Barren inflorescence2 Encodes a Co-ortholog of the PINOID Serine/threonine Kinase and Is Required for Organogenesis during Inflorescence and Vegetative Development in Maize
Paula McSteen *, Simon Malcomber , Andrea Skirpan , China Lunde , Xianting Wu , Elizabeth Kellogg , and Sarah Hake
Department of Biology, The Pennsylvania State University, 208 Mueller Lab, University Park, PA 16802; Plant Gene Expression Center, United States Department of Agriculture-ARS, 800 Buchanan Street, Albany, CA 94710; Department of Biology, University of Missouri-St Louis, One University Boulevard, Saint Louis, MO 63121
* Corresponding author; email: pcm11{at}psu.edu.
Organogenesis in plants is controlled by meristems. Axillary meristems, which give rise to branches and flowers, play a critical role in plant architecture and reproduction. Maize (Zea mays) and rice (Oryza sativa) have additional types of axillary meristem in the inflorescence compared to Arabidopsis (Arabidopsis thaliana) and thus provide an excellent model system to study axillary meristem initiation. Previously, we characterized the barren inflorescence2 (bif2) mutant in maize and showed that bif2 plays a key role in axillary meristem and lateral primordia initiation in the inflorescence. In this report, we cloned bif2 by transposon tagging. Isolation of bif2-like genes from seven other grasses along with phylogenetic analysis showed that bif2 is a co-ortholog of PINOID (PID) which regulates auxin transport in Arabidopsis. Expression analysis showed that bif2 is expressed in all axillary meristems and lateral primordia during inflorescence and vegetative development in maize and rice. Further phenotypic analysis of bif2 mutants in maize illustrates additional roles of bif2 during vegetative development. We propose that bif2/PID sequence and expression are conserved between grasses and Arabidopsis attesting to the important role they play in development. We provide further support that bif2, and by analogy PID, is required for initiation of both axillary meristems and lateral primordia.
This article has been cited by other articles:
|
|
|
|
 
A. Gallavotti, S. Barazesh, S. Malcomber, D. Hall, D. Jackson, R. J. Schmidt, and P. McSteen
sparse inflorescence1 encodes a monocot-specific YUCCA-like gene required for vegetative and reproductive development in maize
PNAS,
September 30, 2008;
105(39):
15196 - 15201.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J.-J. Luo, W. Hao, J. Jin, J.-P. Gao, and H.-X. Lin
Fine Mapping of Spr3, a Locus for Spreading Panicle from African Cultivated Rice (Oryza glaberrima Steud.)
Mol Plant,
September 1, 2008;
1(5):
830 - 838.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
A. Gallavotti, Y. Yang, R. J. Schmidt, and D. Jackson
The Relationship between Auxin Transport and Maize Branching
Plant Physiology,
August 1, 2008;
147(4):
1913 - 1923.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
Compiled by, F. Tooke, T. Chiurugwi, and N. Battey
Flowering Newsletter bibliography for 2007
J. Exp. Bot.,
July 18, 2008;
(2008)
ern109v1.
[Full Text]
[PDF]
|
|
|
|
|
|
|
S. Barazesh and P. McSteen
Barren inflorescence1 Functions in Organogenesis During Vegetative and Inflorescence Development in Maize
Genetics,
May 1, 2008;
179(1):
389 - 401.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
N. N. Rao, K. Prasad, P. R. Kumar, and U. Vijayraghavan
Distinct regulatory role for RFL, the rice LFY homolog, in determining flowering time and plant architecture
PNAS,
March 4, 2008;
105(9):
3646 - 3651.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
F. Bai and D. A. DeMason
Hormone interactions and regulation of PsPK2::GUS compared with DR5::GUS and PID::GUS in Arabidopsis thaliana
Am. J. Botany,
February 1, 2008;
95(2):
133 - 145.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
X. Wu and P. McSteen
The role of auxin transport during inflorescence development in maize (Zea mays, Poaceae)
Am. J. Botany,
November 1, 2007;
94(11):
1745 - 1755.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
