Sphaeria ericophila的命名、分类、分子系统发育和Metacapnodium属分类地位的意义
The enigma of Link's Sphaeria ericophila:nomenclature,taxonomy,molecular phylogeny,and implications for the placement of Metacapnodium
摘要
Abstract
The application of the sooty mould name Sphaeria ericophila,introduced by Link in 1809 for a sooty mould on Erica arborea in Iberia,is fixed by lecto-and epitypification following recent re-collections from Portugal and Spain.Morphologically the fungus is close to the type species of Metacapnodium,M.juniperi,and it was com-bined into that genus as M.ericophilum in 2013.Molecular sequence data of the ITS region from three samples showed the fungus to belong to Eurotiomycetes rather than Dothideomycetes,and to be closest to Phaeomoniellales/Chaetothyri-ales.These are the first sequences reported for Metacapnodium and reveal it as another example of a sooty mould being found to belong to Chaetothyriales s.lat.rather than Capnodiales.Nomenclatural issues are addressed as a conse-quence of the change in the starting point date for fungal nomenclature and the abandonment of the naming of different morphs of the same species that were introduced since Hughes investigated the application of Link's name in 1970.It is now confirmed that Metacapnodium requires protection over Antennullaria,of which Sphaeria ericophila is the type species.There is some evidence for host specialization because M.ericophilum appears not to grow on Juniperus grow-ing amongst heavily infected Erica arborea in Spain.It also occurs on at least one other Erica species,namely E.aust-ralis,but there may be other species of the genus on other species of tree Erica spp.in the mountains of East Africa.关键词
煤炱目/刺盾炱目/Hughes(人名)/M.ericophilum/分子系统发育/命名法/褐球壳目/模式Key words
Capnodiales/Chaetothyriales/Hughes/Metacapnodium ericophilum/molecular phylogeny/nomencla-ture/Phaeomoniellales/typification分类
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David L. Hawksworth,Carlos G. Boluda..Sphaeria ericophila的命名、分类、分子系统发育和Metacapnodium属分类地位的意义[J].菌物研究,2020,18(4):235-245,11.基金项目
This study was initiated while DLH was in receipt of support from the Minis-terio de Educación y Ciencia of Spain(Proyectos I+D CGL 2008-01600).He is indebted to the extensive information on the fungi treated here provided in letters,photocopies,and English translations of text by the late Stanley J.Hughes who remains a lasting inspiration for him.Information received and shared from Toni Atkinson,Gerald F.Bills,Ricardo Galan,and Keith A.Seifert is also gratefully ac-knowledged.Begona Aguirre-Hudson and Victor J.Rico are thanked for organizing K(M)and MAF ac-cession numbers,respectively,during the COVID-19 pandemic.We are also indebted to Keith Seifert for his careful review and most constructive comments on the submitted manuscript. （Proyectos I+D CGL 2008-01600）
