Phylogenetic and chemotaxonomic resolution of the genus Annulohypoxylon(Xylariaceae)including four new species  

作　　者：Eric Kuhnert Esteban B.Sir Christopher Lambert Kevin D.Hyde Adriana I.Hladki Andrea I.Romero Manfred Rohde Marc Stadler 

机构地区：[1]Department of Microbial Drugs,Helmholtz-Zentrum fur Infektionsforschung GmbH,Inhoffenstrasse 7,38124 Brunswick,Germany [2]German Centre for Infection Research(DZIF),partner site Hannover-Braunschweig,38124 Brunswick,Germany [3]Fundacion Miguel Lillo,CONICET,Institute of Mycology,Miguel Lillo 251,San Miguel de Tucuman 4000,Tucuman,Argentina [4]Fundacion Miguel Lillo,Institute of Mycology,Miguel Lillo 251,San Miguel de Tucuman 4000,Tucuman,Argentina [5]Center of Excellence in Fungal Research,Mae Fah Luang University,Chiang Rai 57100,Thailand [6]Instituto de Micologia y Botanica(INMIBO),UBACONICET,Depto.Biodiversidad y Biologia Experimental,FCEN,Av.Int.Guiraldes 2620,C1428EHA Ciudad Autonoma de Buenos Aires,Argentina [7]Central Facility for Microscopy,Helmholtz-Zentrum fur Infektionsforschung GmbH,Inhoffenstrasse 7,38124 Brunswick,Germany

出　　处：《Fungal Diversity》2017年第4期1-43,共43页真菌多样性（英文）

摘　　要：This study deals with an extensive evaluation focusing on phylogenetic and chemotaxonomic infrageneric relationships of the genus Annulohypoxylon(Xylariaceae,Ascomycota),whose species are ubiquitously associated with seed plants as endophytes and saprotrophs in all forested areas of the world.Using evidence from phylogenetic,chemotaxonomic and morphological data,various varieties within the genus are raised to species level,leading to the new combinations for A.areolatum(:A.bovei var.microsporum),A.macrosporum(:A.leptascum var.macrosporum),and A.microdiscum(:A.moriforme var.microdiscum).Annulohypoxylon substygium nom.nov.is applied for A.stygium var.annulatumand the four new tropical and subtropical species A.massivum,A.violaceopigmentum,A.viridistratum and A.yungensis are introduced.Furthermore,A.leucadendri is excluded from the genus as its morphological characters disagree with the generic concept,the recently erected A.palmicola is synonymized with A.leptascum and A.austrobahiense has been reassigned to the genus Hypoxylon.In addition,the key taxa A.annulatum and A.truncatum have been reinvestigated and epitypes have been defined.For the first time,a dichotomous key to the genus is provided.A phylogenetic b-tubulin tree in conjunction with stromatal HPLC profiles clearly shows that Annulohypoxylon comprises two distinct lineages.The A.cohaerens/multiforme group might eventually warrant segregation into a new genus as further molecular data become available.

关 键 词：Β-TUBULIN Biodiversity CHEMOTAXONOMY Phylogeny SYSTEMATICS XYLARIALES 

分 类 号：Q94[生物学—植物学]