Abstract
The chloroplast genes matK. and rbcL, ribosomal gene 18S and ITS regions of nuclear ribosomal DNA fromEphedra rhytidosperma, a species endemic to China, were sequenced and its phylogenetic position was investigated. Independent and combined phylogenetic analyses for the DNA sequences from 16 taxa representing 15 species of the genusEphedra were performed using the maximum parsimony (MP), neighbor-joining (NJ), minimum evolution (ME) and maximum likelihood (ML) methods. The results indicate thatE. rhytidosperma is closely related toE. equisetina. The divergence time between them is estimated to be 10.85±2.44 Ma based on the results of the relative-rate tests and the evolutionary rate of rbcL gene.
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Wang, Q., Wang, L., Zhou, R. et al. Phylogenetic position ofEphedra rhytidosperma, a species endemic to China: Evidence from chloroplast and ribosomal DNA sequences. Chin.Sci.Bull. 50, 2901–2904 (2005). https://doi.org/10.1007/BF02899657
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DOI: https://doi.org/10.1007/BF02899657