title: Phylogenetic systematics of the monotypic genus Hayataella (Rubiaceae) endemic to Taiwan.
abstract: Hayataella (Rubiaceae) is a monotypic genus endemic to Taiwan that comprises H. michelloides. In recent years, Hayataella was considered to be synonymous with Ophiorrhiza; however, no specific data have been reported, and the systematic treatment of Hayataella has been unclear. To elucidate the systematic treatment of Hayataella, molecular phylogenetic analyses based on ITS of nrDNA, atpB-rbcL, and trnK/matK of cpDNA were conducted with four Ophiorrhiza species. In the Bayesian and the most parsimonious trees, H. michelloides was included in the Ophiorrhiza clade. The monotypic status of Hayataella is, therefore, not considered appropriate, and the combination Ophiorrhiza michelloides (Masam.) H. S. Lo is supported.
authors.affiliation: Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, Japan. k048569@eve.u-ryukyu.ac.jp
authors.forename: Koh
authors.initials: K
authors.lastname: Nakamura
authors.forename: Shih-Wen
authors.initials: SW
authors.lastname: Chung
authors.forename: Goro
authors.initials: G
authors.lastname: Kokubugata
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Denda
authors.forename: Masatsugu
authors.initials: M
authors.lastname: Yokota
mesh_terms: D044822:Biodiversity; D018744:DNA, Plant; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D019143:Evolution, Molecular; D008969:Molecular Sequence Data; D010802:Phylogeny; D012340:RNA, Ribosomal, 5.8S / Q000235:genetics; D012273:Ribulose-Bisphosphate Carboxylase; D019666:Rubiaceae / Q000145:classification / Q000235:genetics*; D016415:Sequence Alignment; D013624:Taiwan
chemical_list: D018744:DNA, Plant; D021903:DNA, Ribosomal Spacer; D012340:RNA, Ribosomal, 5.8S; D012273:Ribulose-Bisphosphate Carboxylase