title: A Molecular Phylogeny of the Lichen Genus Lecidella Focusing on Species from Mainland China.
abstract: The phylogeny of Lecidella species is studied, based on a 7-locus data set using ML and Bayesian analyses. Phylogenetic relationships among 43 individuals representing 11 Lecidella species, mainly from mainland China, were included in the analyses and phenotypical characters studied and mapped onto the phylogeny. The Lecidella species fall into three major clades, which are proposed here as three informal groups-Lecidella stigmatea group, L. elaeochroma group and L. enteroleucella group, each of them strongly supported. Our phylogenetic analyses support traditional species delimitation based on morphological and chemical traits in most but not all cases. Individuals considered as belonging to the same species based on phenotypic characters were found to be paraphyletic, indicating that cryptic species might be hidden under these names (e.g. L. carpathica and L. effugiens). Potentially undescribed species were found within the phenotypically circumscribed species L. elaeochroma and L. stigmatea. Additional sampling across a broader taxonomic and geographic scale will be crucial to fully resolving the taxonomy in this cosmopolitan genus.
authors.affiliation: College of Life Sciences, Shandong Normal University, Jinan, 250014, P. R. China.
authors.forename: Xin
authors.initials: X
authors.lastname: Zhao
authors.affiliation: College of Life Sciences, Shandong Normal University, Jinan, 250014, P. R. China.
authors.forename: Lu Lu
authors.initials: LL
authors.lastname: Zhang
authors.affiliation: College of Life Sciences, Shandong Normal University, Jinan, 250014, P. R. China.
authors.forename: Zun Tian
authors.initials: ZT
authors.lastname: Zhao
authors.affiliation: College of Life Sciences, Shandong Normal University, Jinan, 250014, P. R. China.
authors.forename: Wei Cheng
authors.initials: WC
authors.lastname: Wang
authors.affiliation: Science & Education, The Field Museum, Chicago, Illinois, United States of America; Committee on Evolutionary Biology, University of Chicago, Chicago, Illinois, United States of America.
authors.forename: Steven D
authors.initials: SD
authors.lastname: Leavitt
authors.affiliation: Science & Education, The Field Museum, Chicago, Illinois, United States of America.
authors.forename: Helge Thorsten
authors.initials: HT
authors.lastname: Lumbsch
mesh_terms: D001483:Base Sequence; D002681:China; D056426:Genetic Loci; D008011:Lichens / Q000145:classification*; D016013:Likelihood Functions; D010802:Phylogeny; D013045:Species Specificity