作者
Samuel F Brockington, Ya Yang, Fernando GandiaHerrero, Sarah Covshoff, Julian M Hibberd, Rowan F Sage, Gane KS Wong, Michael J Moore, Stephen A Smith
发表日期
2015/5/13
期刊
New Phytologist
卷号
207
期号
4
页码范围
1170-1180
简介
- Betalain pigments are unique to the Caryophyllales and structurally and biosynthetically distinct from anthocyanins. Two key enzymes within the betalain synthesis pathway have been identified: 4,5dioxygenase (DODA) that catalyzes the formation of betalamic acid and CYP76AD1, a cytochrome P450 gene that catalyzes the formation of cycloDOPA.
- We performed phylogenetic analyses to reveal the evolutionary history of the DODA and CYP76AD1 lineages and in the context of an ancestral reconstruction of pigment states we explored the evolution of these genes in relation to the complex evolution of pigments in Caryophylalles.
- Duplications within the CYP76AD1 and DODA lineages arose just before the origin of betalain pigmentation in the core Caryophyllales. The duplications gave rise to DODA螃 and CYP76AD1螃 isoforms that appear specific to betalain synthesis. Both betalainspecific isoforms were …
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