Abstract
We investigated the relationship among North American Rhodiola integrifolia Raf., Rhodiola rosea L., and Rhodiola rhodantha (A. Gray) H. Jacobsen by sequencing a fragment of the nuclear-encoded chloroplast-expressed glutamine synthetase (ncpGS) gene from these three species and from selected Asian representatives of the genus. We found that R. integrifolia is a hybrid descendant of R. rosea and R. rhodantha lineages. We also found that the ncpGS gene and the internal transcribed spacer regions of the nuclear ribosomal DNA of Asian Rhodiola algida Fisch. & Mey. are very similar to those of R. rhodantha. In accordance with known chromosome numbers and species morphology, we therefore propose to move R. algida into the subgenus Clementsia of the genus Rhodiola, which so far contains only two species, R. rhodantha and Asian Rhodiola semenovii (Regel & Herder) Boriss.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
