A duplicate gene rooting of seed plants and the phylogenetic position of flowering plants.

ABSTRACT: Flowering plants represent the most significant branch in the tree of land plants, with respect to the number of extant species, their impact on the shaping of modern ecosystems and their economic importance. However, unlike so many persistent phylogenetic problems that have yielded to insights from DNA sequence data, the mystery surrounding the origin of angiosperms has deepened with the advent and advance of molecular systematics. Strong statistical support for competing hypotheses and recent novel trees from molecular data suggest that the accuracy of current molecular trees requires further testing. Analyses of phytochrome amino acids using a duplicate gene-rooting approach yield trees that unite cycads and angiosperms in a clade that is sister to a clade in which Gingko and Cupressoph

SUBMITTER: Mathews S 

PROVIDER: S-EPMC2838261 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature