Abstract

A molecular phylogenetic analysis of Rhizoplaca melanophthalma, Rhizoplaca chrysoleuca, Rhizoplaca peltata and Rhizoplaca haydenii is presented based on the nuclear ribosomal internal transcribed spacer (ITS) regions and morphology. Rhizoplaca species were collected at 3400-3900 m in Tianshan Mountains, Xinjiang province, China. Rhizoplaca haydenii is reported for the first time in China. Maximum parsimony (MP) analysis of ITS sequences obtained from Tianshan Mountains samples and GenBank reveals that the evolution relationship of Rhizoplaca melanophthalma and Rhizoplaca chrysoleuca is closer to each other than to Rhizoplaca peltata, and Rhizoplaca haydenii showed closer relatedness to Rhizoplaca melanophthalma. When the four species groups from Tianshan Mountains were analyzed alone through the neighbour-joining (NJ) and minimum evolution method, we obtained the same result. The morphology analysis of Rhizoplaca Zopf which reveals the pruinose discs and apothecial discs of species did not show convincing evidences to prove phylogenetic relationship among Rhizoplaca species In our study, the result further proved that Rhizoplaca should be rejected as a genus separate from Lecanora.

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 call

Disclaimer: 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.