After a short historical overview of past systematic studies on Cantharellus,discussing delimitation and species diversity of the genus as well as previous,morphology-based,infrageneric classifications,this paper pres...After a short historical overview of past systematic studies on Cantharellus,discussing delimitation and species diversity of the genus as well as previous,morphology-based,infrageneric classifications,this paper presents the first molecularly-based infrageneric classification of this genus using a multigene phylogenetic approach(nucLSU,mitSSU,RPB2 and tef-1)on a dataset that covers approximately halve of the described chanterelles worldwide,including many type specimens.Six subgenera are recognized and the recognition of subgenus Afrocantharellus as a separate genus is not accepted.The taxonomic value of individual morphological features is discussed as challenged by this new multigene phylogeny which comprises five new sections,one new subgenus and many emendations for previously recognized infrageneric groups.The paper discusses the observed discrepancy in biodiversity of Cantharellus when comparing between studies that focus either on below-or above-ground presence.A preliminary biogeographic hypothesis suggests an‘out of Africa’Gondwanan origin as a result of vicariance and subsequent migrations.展开更多
This revision of Cantharellus in Madagascar deals with species that are associated with strictly endemic host trees and shrubs.Based on morphological differences and molecular sequence data of the tef-1 gene,five new ...This revision of Cantharellus in Madagascar deals with species that are associated with strictly endemic host trees and shrubs.Based on morphological differences and molecular sequence data of the tef-1 gene,five new species are proposed(C.albidolutescens,C.ambohitantelyensis,C.ibityensis,C.paucifurcatus and C.sebosus),as well as one new subspecies,C.subincarnatus ssp.rubrosalmoneus,whereas C.decolorans and C.platyphyllus ssp.bojeriensis are epitypified.A key is provided to all Cantharellus that grow with native vegetation in Madagascar.展开更多
The authors present a combined morphological and molecular approach of the genus Cantharellus in Africa.Morphological descriptions and detailed illustrations are provided for five new species from the Zambezian savann...The authors present a combined morphological and molecular approach of the genus Cantharellus in Africa.Morphological descriptions and detailed illustrations are provided for five new species from the Zambezian savannah woodlands in tropical Africa:C.afrocibarius,C.gracilis,C.humidicolus,C.miomboensis and C.tanzanicus.A maximum likelihood analysis of tef-1 sequences obtained for 83 collections of Cantharellus that are representative of all major groups in world wide Cantharellus,places a total of 13 African chanterelles,including the five newly described taxa.The recognition of a separate genus Afrocantharellus is rejected.An identification key based on the re-examination of all existing type material is provided for all presently known African Cantharellus.展开更多
基金Part of the sequencing for this study was performed by A.Couloux at the Genoscope or“Consortium National de Recherche en Génomique”near Paris(France)as part of the agreement n°2005/67 on the project“Macrophylogeny of life”between the Genoscope and the“service de systématique moléculaire”(CNRS IFR 101)of the Muséum national d’histoire naturelleFor sequencing,this study also received continuing support from the ATM-project“Barcode of life”of the Muséum national d’histoire naturelle(Dirs.L.Legall and S.Samadi).
文摘After a short historical overview of past systematic studies on Cantharellus,discussing delimitation and species diversity of the genus as well as previous,morphology-based,infrageneric classifications,this paper presents the first molecularly-based infrageneric classification of this genus using a multigene phylogenetic approach(nucLSU,mitSSU,RPB2 and tef-1)on a dataset that covers approximately halve of the described chanterelles worldwide,including many type specimens.Six subgenera are recognized and the recognition of subgenus Afrocantharellus as a separate genus is not accepted.The taxonomic value of individual morphological features is discussed as challenged by this new multigene phylogeny which comprises five new sections,one new subgenus and many emendations for previously recognized infrageneric groups.The paper discusses the observed discrepancy in biodiversity of Cantharellus when comparing between studies that focus either on below-or above-ground presence.A preliminary biogeographic hypothesis suggests an‘out of Africa’Gondwanan origin as a result of vicariance and subsequent migrations.
文摘This revision of Cantharellus in Madagascar deals with species that are associated with strictly endemic host trees and shrubs.Based on morphological differences and molecular sequence data of the tef-1 gene,five new species are proposed(C.albidolutescens,C.ambohitantelyensis,C.ibityensis,C.paucifurcatus and C.sebosus),as well as one new subspecies,C.subincarnatus ssp.rubrosalmoneus,whereas C.decolorans and C.platyphyllus ssp.bojeriensis are epitypified.A key is provided to all Cantharellus that grow with native vegetation in Madagascar.
基金the staff members of AMU in Dar-es-Salaam for logistic support and field assistancefinanced by SIDA/SAREC under the«Propagation and phytochemical studies of endangered or economically important plants and fungi of Tanzania»projectstudy was performed by C.Cruaud at the Genoscope or“Consortium National de Recherche en Génomique”near Paris(France)as part of the agreement n°2005/67 on the project“Macrophylogeny of life”between the Genoscope and the“service de systématique moléculaire”(CNRS IFR 101)of the Muséum National d’Histoire Naturelle and receives continuing support from the ATM-project“Barcode of life”(Dirs.L.Legall and S.Samadi).
文摘The authors present a combined morphological and molecular approach of the genus Cantharellus in Africa.Morphological descriptions and detailed illustrations are provided for five new species from the Zambezian savannah woodlands in tropical Africa:C.afrocibarius,C.gracilis,C.humidicolus,C.miomboensis and C.tanzanicus.A maximum likelihood analysis of tef-1 sequences obtained for 83 collections of Cantharellus that are representative of all major groups in world wide Cantharellus,places a total of 13 African chanterelles,including the five newly described taxa.The recognition of a separate genus Afrocantharellus is rejected.An identification key based on the re-examination of all existing type material is provided for all presently known African Cantharellus.