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Setaria viridis: A Model for C4 Photosynthesis

Thomas P. Brutnell, Lin Wang, Kerry Swartwood, Alexander Goldschmidt, David Jackson, Xin-Guang Zhu, Elizabeth Kellogg, Joyce Van Eck
Thomas P. Brutnell
aBoyce Thompson Institute, Cornell University, Ithaca, New York 14853
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  • For correspondence: tpb8@cornell.edu
Lin Wang
aBoyce Thompson Institute, Cornell University, Ithaca, New York 14853
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Kerry Swartwood
aBoyce Thompson Institute, Cornell University, Ithaca, New York 14853
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Alexander Goldschmidt
bCold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724
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David Jackson
bCold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724
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Xin-Guang Zhu
cChinese Academy of Sciences-Max Planck Society Partner Institute for Computational Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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Elizabeth Kellogg
dDepartment of Biology, University of Missouri, St. Louis, Missouri 63121
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Joyce Van Eck
aBoyce Thompson Institute, Cornell University, Ithaca, New York 14853
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Published August 2010. DOI: https://doi.org/10.1105/tpc.110.075309

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  • © 2010 American Society of Plant Biologists

Abstract

C4 photosynthesis drives productivity in several major food crops and bioenergy grasses, including maize (Zea mays), sugarcane (Saccharum officinarum), sorghum (Sorghum bicolor), Miscanthus x giganteus, and switchgrass (Panicum virgatum). Gains in productivity associated with C4 photosynthesis include improved water and nitrogen use efficiencies. Thus, engineering C4 traits into C3 crops is an attractive target for crop improvement. However, the lack of a small, rapid cycling genetic model system to study C4 photosynthesis has limited progress in dissecting the regulatory networks underlying the C4 syndrome. Setaria viridis is a member of the Panicoideae clade and is a close relative of several major feed, fuel, and bioenergy grasses. It is a true diploid with a relatively small genome of ~510 Mb. Its short stature, simple growth requirements, and rapid life cycle will greatly facilitate genetic studies of the C4 grasses. Importantly, S. viridis uses an NADP-malic enzyme subtype C4 photosynthetic system to fix carbon and therefore is a potentially powerful model system for dissecting C4 photosynthesis. Here, we summarize some of the recent advances that promise greatly to accelerate the use of S. viridis as a genetic system. These include our recent successful efforts at regenerating plants from seed callus, establishing a transient transformation system, and developing stable transformation.

  • Received March 11, 2010.
  • Revised July 18, 2010.
  • Accepted July 22, 2010.
  • Published August 6, 2010.
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Setaria viridis: A Model for C4 Photosynthesis
Thomas P. Brutnell, Lin Wang, Kerry Swartwood, Alexander Goldschmidt, David Jackson, Xin-Guang Zhu, Elizabeth Kellogg, Joyce Van Eck
The Plant Cell Aug 2010, 22 (8) 2537-2544; DOI: 10.1105/tpc.110.075309

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Setaria viridis: A Model for C4 Photosynthesis
Thomas P. Brutnell, Lin Wang, Kerry Swartwood, Alexander Goldschmidt, David Jackson, Xin-Guang Zhu, Elizabeth Kellogg, Joyce Van Eck
The Plant Cell Aug 2010, 22 (8) 2537-2544; DOI: 10.1105/tpc.110.075309
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    • Abstract
    • Why Study C4?
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The Plant Cell Online: 22 (8)
The Plant Cell
Vol. 22, Issue 8
Aug 2010
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