Widespread positive selection in the photosynthetic Rubisco enzyme
Open Access
- 1 January 2007
- journal article
- Published by Springer Nature in BMC Ecology and Evolution
- Vol. 7 (1) , 73
- https://doi.org/10.1186/1471-2148-7-73
Abstract
Rubisco enzyme catalyzes the first step in net photosynthetic CO2 assimilation and photorespiratory carbon oxidation and is responsible for almost all carbon fixation on Earth. The large subunit of Rubisco is encoded by the chloroplast rbcL gene, which is widely used for reconstruction of plant phylogenies due to its conservative nature. Plant systematicists have mainly used rbcL paying little attention to its function, and the question whether it evolves under Darwinian selection has received little attention. The purpose of our study was to evaluate how common is positive selection in Rubisco among the phototrophs and where in the Rubisco structure does positive selection occur.Keywords
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