High species richness in the lichen genus Peltigera (Ascomycota, Lecanoromycetes): 34 species in the dolichorhizoid and scabrosoid clades of section Polydactylon, including 24 new to science

doi:10.3767/persoonia.2023.51.01

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	High species richness in the lichen genus Peltigera (Ascomycota, Lecanoromycetes): 34 species in the dolichorhizoid and scabrosoid clades of section Polydactylon, including 24 new to science
	Magain,N.; Miadlikowska,J.; Goffinet,B.; Goward,T.; Pardo-De la Hoz,C. J.; Juriado,I.; Simon,A.; Mercado-Diaz,J. A.; Barlow,T.; Moncada,B.; Luecking,R.; Spielmann,A.; Canez,L.; Wang,L. S.; Nelson,P.; Wheeler,T.; Lutzoni,F.; Serusiaux,E.
	2023
发表期刊	PERSOONIA
卷号	51 页码:1-88
摘要	Applying molecular methods to fungi establishing lichenized associations with green algae or cyanobacteria has repeatedly revealed the existence of numerous phylogenetic taxa overlooked by classical taxonomic approaches. Here, we report taxonomical conclusions based on multiple species delimitation and validation analyses performed on an eight-locus dataset that includes world-wide representatives of the dolichorhizoid and scabrosoid clades in section Polydactylon of the genus Peltigera. Following the recommendations resulting from a consensus species delimitation approach and additional species validation analysis (BPP) performed in this study, we present a total of 25 species in the dolichorhizoid clade and nine in the scabrosoid clade, including respectively 18 and six species that are new to science and formally described. Additionally, one combination and three varieties (including two new to science) are proposed in the dolichorhizoid clade. The following 24 new species are described: P. appalachiensis, P. asiatica, P. borealis, P. borinquensis, P. chabanenkoae, P. clathrata, P. elixii, P. esslingeri, P. flabellae, P. gallowayi, P. hawaiiensis, P. holtanhartwigii, P. itatiaiae, P. hokkaidoensis, P. kukwae, P. massonii, P. mikado, P. nigriventris, P. orientalis, P. rangiferina, P. sipmanii, P. stanleyensis, P. vitikainenii and P. willdenowii; the following new varieties are introduced: P. kukwae var. phyllidiata and P. truculenta var. austroscabrosa; and the following new combination is introduced: P. hymenina var. dissecta. Each species from the dolichorhizoid and scabrosoid clades is morphologically and chemically described, illustrated, and characterised with ITS sequences. Identification keys are provided for the main biogeographic regions where species from the two clades occur. Morphological and chemical characters that are commonly used for species identification in the genus Peltigera cannot be applied to unambiguously recognise most molecularly circumscribed species, due to high variation of thalli formed by individuals within a fungal species, including the presence of distinct morphs in some cases, or low interspecific variation in others. The four commonly recognised morphospecies: P. dolichorhiza, P. neopolydactyla, P. pulverulenta and P. scabrosa in the dolichorhizoid and scabrosoid clades represent species complexes spread across multiple and often phylogenetically distantly related lineages. Geographic origin of specimens is often helpful for species recognition; however, ITS sequences are frequently required for a reliable identification.
关键词	cryptic species identification key new taxa Peltigerales species delimitation INTERNAL TRANSCRIBED SPACER BRITISH-COLUMBIA PHYLOGENETIC REVISION FORMING ASCOMYCOTA NITROGEN-FIXATION LARGE SUBUNIT RECENT ORIGIN DELIMITATION FUNGI DIVERSITY
DOI	10.3767/persoonia.2023.51.01
收录类别	SCI
WOS记录号	WOS:001164098000001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75376
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Magain,N.,Miadlikowska,J.,Goffinet,B.,et al. High species richness in the lichen genus Peltigera (Ascomycota, Lecanoromycetes): 34 species in the dolichorhizoid and scabrosoid clades of section Polydactylon, including 24 new to science[J]. PERSOONIA,2023,51:1-88.
APA	Magain,N..,Miadlikowska,J..,Goffinet,B..,Goward,T..,Pardo-De la Hoz,C. J..,...&Serusiaux,E..(2023).High species richness in the lichen genus Peltigera (Ascomycota, Lecanoromycetes): 34 species in the dolichorhizoid and scabrosoid clades of section Polydactylon, including 24 new to science.PERSOONIA,51,1-88.
MLA	Magain,N.,et al."High species richness in the lichen genus Peltigera (Ascomycota, Lecanoromycetes): 34 species in the dolichorhizoid and scabrosoid clades of section Polydactylon, including 24 new to science".PERSOONIA 51(2023):1-88.

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