, Volume 53, Issue 1, pp 108–115 | Cite as

A phylogeny inferred from large ribosomal subunit (26S) rDNA sequences suggests that Cuscuta is a derived member of Convolvulaceae

  • Ray Neyland


Cuscuta is a parasitic angiosperm that has been considered alternatively either as a genus within Convolvulaceae or as a monogeneric family in its own right. Although typically placed in the Solanales,Cuscuta has also been positioned within the Polemoniales. Extreme reduction of morphological and anatomical characters, as well as chloroplast genome reductions and rearrangements, has made the phylogenetic placement ofCuscuta uncertain. Analysis of 26S rDNA sequences suggests thatCuscuta is a derived member of Convolvulaceae. Molecular results are discussed in relation to the morphological and anatomical characters of autotrophic members of Convolvulaceae.

Key words

Asteridae Convolvulaceae Cuscuta Cuscutaceae Solanales 


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Copyright information

© The New York Botanical Garden Press 2001

Authors and Affiliations

  • Ray Neyland
    • 1
  1. 1.Department of Biology and Environmental ScienceMcNeese State UniversityLake CharlesU.S.A.

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