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A Molecular Analysis Of The Euglenophytes Using Ssu Rdna by Eric W. Linton; Maria Alejandra Nudelman; Visitacion Conforti; Richard E. Triemer is a Earth and Planetary Sciences article available to read on EtoBox.

What is A Molecular Analysis Of The Euglenophytes Using Ssu Rdna about?

Almost since the creation of the genus __Euglena__ (Ehrenberg), the taxa assigned to it have been separated, split apart, and reorganized into new genera based on morphological relationships, resulting in the creation of the genera __Phacus__ (Dujardin)__, Lepocinclis__ (Perty)__, Astasia__ (Pringsheim), and __Khawkinea__ ( Jahn and McKibben) based on intuitive methods. In an effort to assess the validity of these genera, we have used small subunit (SSU) rDNA data to generate a phylogenetic framework for these genera, with particular attention to the genus __Euglena__. Using the conserved sequence areas, we performed a phylogenetic analysis using parsimony, maximum likelihood, and distance methods. These different criteria have resulted in trees of the same topology. The euglenoid clade was composed of phagotrophic euglenoids at the base, which gave rise to phototrophs that in turn gave rise to osmotrophs. Among the photosynthetic taxa, the biflagellate form diverged prior to the uniflagellate form. Additionally, the need for a revision in the taxonomy of some of these genera was demonstrated. Currently, taxa from the photosynthetic genera __Euglena, Phacus,__ and __Lepocinclis__ d

Who reads A Molecular Analysis Of The Euglenophytes Using Ssu Rdna?

Author

Eric W. Linton; Maria Alejandra Nudelman; Visitacion Conforti; Richard E. Triemer

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0022-3646)

Published

2000

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)