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Molecular phylogeny and floral fragrances of male euglossine bee-pollinated orchids: A study of Stanhopea (Orchidaceae)

1999; Wiley; Volume: 14; Issue: 2 Linguagem: Inglês

10.1046/j.1442-1984.1999.00016.x

1442-1984

Norris H. Williams, W. Mark Whitten,

Plant biochemistry and biosynthesis

Abstract A molecular phylogeny was estimated for 23 species of the genus Stanhopea and its sister taxon the monotypic Embreea (Orchidaceae) using the internally transcribed spacer regions‐1 and ‐2 (ITS). We compared the molecular phylogeny with data on floral fragrances and pollination biology. In a few instances, the fragrance data reflected the molecular phylogeny of some of the species groups, but for the most part, fragrance data were homoplasious and not reliable indicators of phylogeny as determined from the independently derived molecular data set.