Chemical evidence for hybridity in Drosera (Droseraceae)

Publication date: June 2016 Source:Biochemical Systematics and Ecology, Volume 66 Author(s): Jan Schlauer, Andreas Fleischmann Naphthoquinone patterns found in Drosera hybrids between quinone-heterogenous parent species are reported here for the first time. Quinone patterns are constant in and characteristic for all taxa investigated. Each investigated parent species contains only one quinone isomer (either plumbagin or 7-methyljuglone), whereas all investigated hybrids between quinone-heterogenous parent species contain both isomers at almost equal concentrations, which indicates co-dominant heredity resulting from expression of both parental loci affecting regioselectivity in the biosynthesis of these acetogenic metabolites. This allows predictions on hybridity (and possibly on parentage) in some taxa of the genus. Graphical abstract

Source: Biochemical Systematics and Ecology - March 19, 2016 Category: Biochemistry Source Type: research