Unravelling Pestalotiopsis-like species associated with Camellia sinensis in China
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- 英文论文题名：Unravelling Pestalotiopsis-like species associated with Camellia sinensis in China
- 论文作者：Fang Liu ; Mubashar Raza ; Lingwei Hou ; Lei Cai
- 英文论文作者：Fang Liu ; Mubashar Raza ; Lingwei Hou ; Lei Cai ; Chinese Academy of Sciences ; Institute of Microbiology ; State Key Laboratory of Mycology ; University of Chinese Academy of Sciences
- 年：2016
- 作者机构：Chinese Academy of Sciences,Institute of Microbiology,State Key Laboratory of Mycology;University of Chinese Academy of Sciences;
- 英文论文关键词：Coalescent theory ; Phylogeny ; Species delimitation ; Tea plants
- 会议召开时间：2016-08-19
- 会议录名称：中国菌物学会2016年学术年会论文摘要集
- 英文会议录名称：Abstracts of 2016 Mycological Society of China Annual Meeting
- 语种：英文
- 分类号：S435.711
- 学会代码：ZGVL
- 会议名称：中国菌物学会2016年学术年会
- 会议地点：中国福建福州
- 主办单位：中国菌物学会
- 学会名称：中国菌物学会
- 页数：1
- 文件大小：773k
- 原文格式：D
- 会议级别：全国
摘要
A total of 114 Pestalotiopsis-like isolates associated with symptomatic and asymptomatic tissues of Camellia sinensis were investigated from eight provinces in China(Fujian,Guangxi,Guizhou,Jiangxi,Sichuan,Tibet,Yunnan,Zhejiang).Based on single-locus and multi-locus(LSU,ITS,TEF1,TUB2) phylogenetic analyses and coalescent-based species delimitation methods(GMYC and PTP),as well as the comparison of morphological,host-association and geographical characters,they were classified into three genera,i.e.Neopestalotiopsis,Pestalotiopsis and Pseudopestalotiopsis,and at least 17 species,including eight novel species in Pestalotiopsis and two novel species in Pseudopestalotiopsis.Moreover,six clades representing previously unknown lineages were determined as unclassifed species due to the representative of single strain or their sterility.Our multi-locus phylogenetic analysis suggested that the currently widely used loci do not consistently provide stable and high resolution tree topologies.A few more phylogeneticaly highly informative loci and larger sampling size are therefore necessary to be incorporated in future study to infer a more satisfactorily resolved topology,as well as species relationships.
A total of 114 Pestalotiopsis-like isolates associated with symptomatic and asymptomatic tissues of Camellia sinensis were investigated from eight provinces in China(Fujian,Guangxi,Guizhou,Jiangxi,Sichuan,Tibet,Yunnan,Zhejiang).Based on single-locus and multi-locus(LSU,ITS,TEF1,TUB2) phylogenetic analyses and coalescent-based species delimitation methods(GMYC and PTP),as well as the comparison of morphological,host-association and geographical characters,they were classified into three genera,i.e.Neopestalotiopsis,Pestalotiopsis and Pseudopestalotiopsis,and at least 17 species,including eight novel species in Pestalotiopsis and two novel species in Pseudopestalotiopsis.Moreover,six clades representing previously unknown lineages were determined as unclassifed species due to the representative of single strain or their sterility.Our multi-locus phylogenetic analysis suggested that the currently widely used loci do not consistently provide stable and high resolution tree topologies.A few more phylogeneticaly highly informative loci and larger sampling size are therefore necessary to be incorporated in future study to infer a more satisfactorily resolved topology,as well as species relationships.
A total of 114 Pestalotiopsis-like isolates associated with symptomatic and asymptomatic tissues of Camellia sinensis were investigated from eight provinces in China(Fujian,Guangxi,Guizhou,Jiangxi,Sichuan,Tibet,Yunnan,Zhejiang).Based on single-locus and multi-locus(LSU,ITS,TEF1,TUB2) phylogenetic analyses and coalescent-based species delimitation methods(GMYC and PTP),as well as the comparison of morphological,host-association and geographical characters,they were classified into three genera,i.e.Neopestalotiopsis,Pestalotiopsis and Pseudopestalotiopsis,and at least 17 species,including eight novel species in Pestalotiopsis and two novel species in Pseudopestalotiopsis.Moreover,six clades representing previously unknown lineages were determined as unclassifed species due to the representative of single strain or their sterility.Our multi-locus phylogenetic analysis suggested that the currently widely used loci do not consistently provide stable and high resolution tree topologies.A few more phylogeneticaly highly informative loci and larger sampling size are therefore necessary to be incorporated in future study to infer a more satisfactorily resolved topology,as well as species relationships.
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