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Changes in Rubisco kinetics during the evolution of C4 photosynthesis in Flaveria (Asteraceae) are associated with positive selection on genes encoding the enzyme.

Abstract:

Rubisco, the primary photosynthetic carboxylase, evolved 3-4 billion years ago in an anaerobic, high CO(2) atmosphere. The combined effect of low CO(2) and high O(2) levels in the modern atmosphere, and the inability of Rubisco to distinguish completely between CO(2) and O(2), leads to the occurrence of an oxygenation reaction that reduces the efficiency of photosynthesis. Among land plants, C(4) photosynthesis largely solves this problem by facilitating a high CO(2)/O(2) ratio at the site of...

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Publication status:
Published

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Publisher copy:
10.1093/molbev/msq335

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Institution:
University of Oxford
Department:
Oxford, MPLS, Plant Sciences
Role:
Author
Journal:
Molecular biology and evolution
Volume:
28
Issue:
4
Pages:
1491-1503
Publication date:
2011-04-05
DOI:
EISSN:
1537-1719
ISSN:
0737-4038
URN:
uuid:d569079f-3263-45c8-b9ea-ab2740254f31
Source identifiers:
129451
Local pid:
pubs:129451

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