Phytoene synthase

In silico identification and analysis of phytoene synthase genes in plants

Y. Han, Zheng, Q. S., Wei, Y. P., Chen, J., Liu, R., and Wan, H. J., In silico identification and analysis of phytoene synthase genes in plants, vol. 14, pp. 9412-9422, 2015.

In this study, we examined phytoene synthetase (PSY), the first key limiting enzyme in the synthesis of carotenoids and catalyzing the formation of geranylgeranyl pyrophosphate in terpenoid biosynthesis. We used known amino acid sequences of the PSY gene in tomato plants to conduct a genome-wide search and identify putative candidates in 34 sequenced plants. A total of 101 homologous genes were identified. Phylogenetic analysis revealed that PSY evolved independently in algae as well as monocotyledonous and dicotyledonous plants.

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