Molecular identifications uncover diverse fungal symbionts of Pleione (Orchidaceae)
Qin, Jiao1,2; Zhang, Wei1,2; Ge, Zai-Wei3; Zhang, Shi-Bao1,2
刊名FUNGAL ECOLOGY
2019-02-01
卷号37页码:19-29
关键词Atractiellales Coelogyninae Epiphytic Orchid mycorrhizal fungi Sebacinales group B Tulasnellaceae
ISSN号1754-5048
英文摘要Fungal mutualisms are essential for the evolution and diversification of Orchidaceae, yet the fungal symbionts of Pleione orchids are poorly understood because molecular data are unavailable for this genus. Based on ITS-rDNA sequencing for mycobionts of 15 Pleione species (both wild and cultivated plants were included), we conducted phylogenetic analyses for the most dominant mycobionts, and compared the operational taxonomic units (OTUs) of mycorrhizal fungi among species within Pleione. Tulasnellaceae, Ceratobasidiaceae, Serendipitaceae (Sebacinales), Atractiellales, and Auriculariales were reported as putative mycobionts of Pleione. In particular, the mycorrhizal associations between subtropical orchids and Atractiellales have not been observed before. For the dominant mycobionts in the roots of Pleione and its related genera, Bletilla and Coelogyne, we detected no fungal OTU that was shared. Within Pleione, species with a sympatric distribution showed preferences for different fungi. Epiphytic and lithophytic individuals of Pleione albiflora shared OTUs of Tulasnellaceae but harbored different OTUs of Sebacinales, indicating some degree of fungal specificity toward certain habitats. These findings provide new insights into the ecological adaptation and evolution of orchids, and will contribute to the conservation and utilization of species resources. (C) 2018 Elsevier Ltd and British Mycological Society. All rights reserved.
资助项目National Natural Science Foundation of China[31670342] ; National Natural Science Foundation of China[31700026] ; National Natural Science Foundation of China[31461143031]
语种英语
资助机构National Natural Science Foundation of China
内容类型期刊论文
源URL[http://ir.kib.ac.cn/handle/151853/64363]  
专题昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室
通讯作者Ge, Zai-Wei; Zhang, Shi-Bao
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650201, Yunnan, Peoples R China
2.Yunnan Key Lab Wild Plant Resources, Kunming, Yunnan, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
推荐引用方式
GB/T 7714
Qin, Jiao,Zhang, Wei,Ge, Zai-Wei,et al. Molecular identifications uncover diverse fungal symbionts of Pleione (Orchidaceae)[J]. FUNGAL ECOLOGY,2019,37:19-29.
APA Qin, Jiao,Zhang, Wei,Ge, Zai-Wei,&Zhang, Shi-Bao.(2019).Molecular identifications uncover diverse fungal symbionts of Pleione (Orchidaceae).FUNGAL ECOLOGY,37,19-29.
MLA Qin, Jiao,et al."Molecular identifications uncover diverse fungal symbionts of Pleione (Orchidaceae)".FUNGAL ECOLOGY 37(2019):19-29.
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