Although Inonotus linteus complex is placed in the genusInonotus,its perennial basidiocarps with a dimitic hyphal system,at least in the trama,distinguish the complex from other species in the genus,which have an annu...Although Inonotus linteus complex is placed in the genusInonotus,its perennial basidiocarps with a dimitic hyphal system,at least in the trama,distinguish the complex from other species in the genus,which have an annual habit and a monomitic hyphal system.The species number of Inonotus linteus complex has been increased in China and tropical America in recent publications.However,whether species in this complex belong to Inonotus has not specifically been addressed.To explore the phylogenetic placement of species of Inonotus linteus complex,we performed a comprehensive study using morphological and phylogenetic data based on global samples.nLSU(53 with 13 new)and ITS(70 with 18 new)datasets were used to produce the phylogenetic results.Taking into consideration the phylogenies inferred from the nLSU and ITS datasets,Inonotus is a polyphyletic genus comprising at least three clades.Clade A,the core Inonotus clade,contains the generic type,Inonotus hispidus,while Clades B and C comprise species from the Inonotus linteus complex.Morphological and phylogenetic evidence indicates that Clades B and C are new genera,and Sanghuangporus and Tropicoporus are introduced in this study.Ten species are transferred to Sanghuangporus and seven to Tropicoporus.Tropicoporus excentrodendri and T.guanacastensis spp.nov.are described,and their distinctive characters are discussed.Keys to the two new genera and the Inonotus sensu stricto,and to species of each new genus are provided.展开更多
The Inonotus linteus complex comprises several closely related species characterized by pileate basidiomes,a heterogeneous hyphal system with a monomitic context and a dimitic hymenophoral trama.Setae are hymenial and...The Inonotus linteus complex comprises several closely related species characterized by pileate basidiomes,a heterogeneous hyphal system with a monomitic context and a dimitic hymenophoral trama.Setae are hymenial and basidiospores are broadly ellipsoid to subglobose,yellowish and thick-walled.Research to understand this complex have been particularly noticeable in East Asia.In the present paper,the complex was studied at a larger scale,including samples from Mesoamerica.Inonotus linteus,an epitype of this species being designated here,is circumscribed as a narrow sense based on morphological and phylogenetic data,and this has lead to delimiting a new species from Mesoamerica,viz.I.cubensis,and provides evidence for two additional species,I.alpinus and I.zonatus,from East Asia.Phylogenetic analyses of ITS sequences also confirmed the status of I.baumii,I.linteus,I.lonicericola,I.lonicerinus,I.vaninii,I.sanghuang,I.weigelae and I.weirianus as distinct taxa,while I.tenuicontextus is considered to be a synonym of I.weigelae.A key to 11 species in the complex is provided.展开更多
基金the National Natural Science Foundation of China(Project No.31200015).
文摘Although Inonotus linteus complex is placed in the genusInonotus,its perennial basidiocarps with a dimitic hyphal system,at least in the trama,distinguish the complex from other species in the genus,which have an annual habit and a monomitic hyphal system.The species number of Inonotus linteus complex has been increased in China and tropical America in recent publications.However,whether species in this complex belong to Inonotus has not specifically been addressed.To explore the phylogenetic placement of species of Inonotus linteus complex,we performed a comprehensive study using morphological and phylogenetic data based on global samples.nLSU(53 with 13 new)and ITS(70 with 18 new)datasets were used to produce the phylogenetic results.Taking into consideration the phylogenies inferred from the nLSU and ITS datasets,Inonotus is a polyphyletic genus comprising at least three clades.Clade A,the core Inonotus clade,contains the generic type,Inonotus hispidus,while Clades B and C comprise species from the Inonotus linteus complex.Morphological and phylogenetic evidence indicates that Clades B and C are new genera,and Sanghuangporus and Tropicoporus are introduced in this study.Ten species are transferred to Sanghuangporus and seven to Tropicoporus.Tropicoporus excentrodendri and T.guanacastensis spp.nov.are described,and their distinctive characters are discussed.Keys to the two new genera and the Inonotus sensu stricto,and to species of each new genus are provided.
基金financed by the National Natural Science Foundation of China(Project Nos.31070022,30910103907,31200015)Chinese Academy of Sciences Grant(Project No.KSCX2-EW-Z-9)+1 种基金Shandong Provincial Natural Science Foundation of China(Project No.ZR2012CL03)Cony Decock gratefully acknowledges the financial support received from the Belgian State-Belgian Federal Science Policy through the BCCMTM research program and from the FNRS/FRFC(convention FRFC 2.4544.10).
文摘The Inonotus linteus complex comprises several closely related species characterized by pileate basidiomes,a heterogeneous hyphal system with a monomitic context and a dimitic hymenophoral trama.Setae are hymenial and basidiospores are broadly ellipsoid to subglobose,yellowish and thick-walled.Research to understand this complex have been particularly noticeable in East Asia.In the present paper,the complex was studied at a larger scale,including samples from Mesoamerica.Inonotus linteus,an epitype of this species being designated here,is circumscribed as a narrow sense based on morphological and phylogenetic data,and this has lead to delimiting a new species from Mesoamerica,viz.I.cubensis,and provides evidence for two additional species,I.alpinus and I.zonatus,from East Asia.Phylogenetic analyses of ITS sequences also confirmed the status of I.baumii,I.linteus,I.lonicericola,I.lonicerinus,I.vaninii,I.sanghuang,I.weigelae and I.weirianus as distinct taxa,while I.tenuicontextus is considered to be a synonym of I.weigelae.A key to 11 species in the complex is provided.
