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Tytuł:
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Meeting in the Middle: Lessons and Opportunities from Studying C 3 -C 4 Intermediates.
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Autorzy:
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Mercado MA; Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA; email: , .
Studer AJ; Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA; email: , .
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Źródło:
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Annual review of plant biology [Annu Rev Plant Biol] 2022 May 20; Vol. 73, pp. 43-65. Date of Electronic Publication: 2022 Mar 01.
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Typ publikacji:
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Journal Article; Review; Research Support, Non-U.S. Gov't
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Język:
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English
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Imprint Name(s):
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Original Publication: Palo Alto, Calif. : Annual Reviews Inc., c2002-
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MeSH Terms:
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Biological Evolution*
Photosynthesis*/genetics
Glycine Dehydrogenase (Decarboxylating)/genetics ; Glycine Dehydrogenase (Decarboxylating)/metabolism ; Plant Leaves/metabolism
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Contributed Indexing:
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Keywords: C2 photosynthesis; C3-C4 intermediate; interspecific hybrids; photorespiratory glycine shuttle; trait evolution
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Substance Nomenclature:
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EC 1.4.4.2 (Glycine Dehydrogenase (Decarboxylating))
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Entry Date(s):
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Date Created: 20220301 Date Completed: 20220524 Latest Revision: 20220613
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Update Code:
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20240104
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DOI:
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10.1146/annurev-arplant-102720-114201
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PMID:
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35231181
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The discovery of C 3 -C 4 intermediate species nearly 50 years ago opened up a new avenue for studying the evolution of photosynthetic pathways. Intermediate species exhibit anatomical, biochemical, and physiological traits that range from C 3 to C 4 . A key feature of C 3 -C 4 intermediates that utilize C 2 photosynthesis is the improvement in photosynthetic efficiency compared with C 3 species. Although the recruitment of some core enzymes is shared across lineages, there is significant variability in gene expression patterns, consistent with models that suggest numerous evolutionary paths from C 3 to C 4 photosynthesis. Despite the many evolutionary trajectories, the recruitment of glycine decarboxylase for C 2 photosynthesis is likely required. As technologies enable high-throughput genotyping and phenotyping, the discovery of new C 3 -C 4 intermediates species will enrich comparisons between evolutionary lineages. The investigation of C 3 -C 4 intermediate species will enhance our understanding of photosynthetic mechanisms and evolutionary processes and will potentially aid in crop improvement.