High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales
Healy, R. A.1; Smith, M. E.2; Bonito, G. M.3; Pfister, D. H.4; Ge, Z. -W.2,5; Guevara, G. G.; Williams, G.3; Stafford, K.3; Kumar, L.1; Lee, T.1; Hobart, C.6; Trappe, J.7; Vilgalys, R.3; Mclaughlin, D. J.1
2013-03-01
发表期刊MOLECULAR ECOLOGY
ISSN0962-1083
卷号22期号:6页码:1717-1732
摘要Fungal mitospores may function as dispersal units and/ or spermatia and thus play a role in distribution and/or mating of species that produce them. Mitospore production in ectomycorrhizal (EcM) Pezizales is rarely reported, but here we document mitospore production by a high diversity of EcM Pezizales on three continents, in both hemispheres. We sequenced the internal transcribed spacer (ITS) and partial large subunit (LSU) nuclear rDNA from 292 spore mats (visible mitospore clumps) collected in Argentina, Chile, China, Mexico and the USA between 2009 and 2012. We collated spore mat ITS sequences with 105 fruit body and 47 EcM root sequences to generate operational taxonomic units (OTUs). Phylogenetic inferences were made through analyses of both molecular data sets. A total of 48 OTUs from spore mats represented six independent EcM Pezizales lineages and included truffles and cup fungi. Three clades of seven OTUs have no known meiospore stage. Mitospores failed to germinate on sterile media, or form ectomycorrhizas on Quercus, Pinus and Populus seedlings, consistent with a hypothesized role of spermatia. The broad geographic range, high frequency and phylogenetic diversity of spore mats produced by EcM Pezizales suggests that a mitospore stage is important for many species in this group in terms of mating, reproduction and/or dispersal.
关键词Cryptic Diversity Ectomycorrhizal Pezizales Environmental Sequencing Mitospore Truffle
资助信息MN DNR; Friends of Farlow; North American Truffling Association; Society of Systematic Biologists; Dayton Wilkie Fund; Harvard University Herbaria; University of Florida's Institute of Food and Agricultural Sciences; Department of Energy, Office of Biological and Environmental Research [DEAC05-00OR22725]; SEP; CONACyT
学科领域Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS记录号WOS:000316209500018
引用统计
被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/16501
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位1.Univ Minnesota, Dept Plant Biol, St Paul, MN 55108 USA
2.Univ Florida, Dept Plant Pathol, Gainesville, FL 32611 USA
3.Duke Univ, Dept Biol, Durham, NC 27708 USA
4.Harvard Univ, Farlow Herbarium Cryptogam Bot, Cambridge, MA 02143 USA
5.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
6.Univ Sheffield, Sheffield, S Yorkshire, England
7.Oregon State Univ, Dept Forest Ecosyst & Soc, Corvallis, OR 97331 USA
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Healy, R. A.,Smith, M. E.,Bonito, G. M.,et al. High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales[J]. MOLECULAR ECOLOGY,2013,22(6):1717-1732.
APA Healy, R. A..,Smith, M. E..,Bonito, G. M..,Pfister, D. H..,Ge, Z. -W..,...&Mclaughlin, D. J..(2013).High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales.MOLECULAR ECOLOGY,22(6),1717-1732.
MLA Healy, R. A.,et al."High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales".MOLECULAR ECOLOGY 22.6(2013):1717-1732.
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