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Cylindrotheca closterium Is a species complex as Was Evidenced by the Variations of rbcL Gene and SSU rDNA

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Journal of Ocean University of China 2007年第2期6卷 167-174页

作者： LI Haitao YANG Guanpin SUN Ying WU Suihan ZHANG Xiufang College of Marine Life Sciences Ocean University of China Qingdao 266003 P. R. China

The genus Cylindrotheca consists of a small group of marine diatoms with a few species described. Eleven isolates of diatoms identified as Cylindrotheca closterium morphologically were obtained from Jiaozhou Bay with their nuclear-encoded small-subunit ribosomal RNA （SSU rDNA） and chloroplast-encoded rbcL gene sequences determined in this study. Interestingly, very high sequence divergences of SSU rDNA and rbcL gene were found among these isolates, and numerous nucleotide variation of rbcL gene caused relatively few variation of deduced amino acid sequence. Phylogenetic analyses based on SSU rDNA and rbcL gene, respectively, grouped the isolates into 6 clades. Phylogenetic tree of SSU rDNA placed all the Cylindrotheca isolates together, separating them into two lineages clearly. LineageⅠ was composed of the eleven C. closterium isolates obtained in this study together with another C. closterium isolate, but some clades were not well supported. LineageⅠwas contained two C. closterium isolates and one C. fusiformis isolate. Phylogenetic analysis of rbcL gene also separated the Cylindrotheca isolates into two well-defined lineages. The eleven C. closterium isolates formed a lineage and all clades were supported strongly. Statistical comparisons of SSU rDNA indicated that the average distance within lineageⅠwas significantly higher than that of other microalgae species （P 〈0.01）. These results suggested the existence of cryptic species within C. closterium.

关键词： Cylindrotheca closterium species complex rbcL gene, SSU rDNA

Research Progress of Bactrocera dorsalis and Its species complex

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Agricultural Science & Technology 2011年第11期12卷 1657-1661页

作者：刘建宏熊小真潘涌智杨丽英黎小军新余学院医学与生命科学学院江西新余338004 西南林业大学林学院云南昆明650024

Research progress of B. dorsalis and its species complex in Taiwan region and abroad was summarized from the aspects of classification, origin, transmission, distribution, host, biological characteristics and adaptability to environmental conditions, in order to provide references and basis for researching B. dorsalis and its species complex in China.

关键词： B. dorsalis species complex Identification Biological characteristics

Macalpinomyces eriachnes represents a complex of cryptic species

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Macalpinomyces eriachnes represents a complex of cryptic spe...

What are the common anthracnose pathogens of tropical fruits?

中国菌物学会第六届会员代表大会（2014年学术年会）暨贵州省食用菌产业发展高峰论坛

作者： Yingming Li Roger G.Shivas Alistair R.McTaggart Lei Cai Key Laboratory of Systematic Mycology Institute of MicrobiologyChinese Academy of Sciences

Macalpinomyces eriachnes,is a monotypic species of smut fungus endemic to *** is the type species of *** our study,combined morphological and multi-locus phylogenetic analysis of 31 specimens of *** from 14 species of Eriachne revealed a complex of host specific cryptic *** result showed that specimens from same host but in different region were genetically similar than the specimens from same geographic region but in different *** of *** complex is clearly linked with the host,suggesting the importance host-adaption in the process of *** taxonomy of this complex is partly resolved by the descriptions of 9 new species restricted to certain species of ***,Macalpinomyces was confirmed as belonging to the Ustilaginaceae.

关键词： phylogeny morphology Ustilaginaceae species complex

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Fungal Diversity 2013年第4期61卷 165-179页

作者： Dhanushka Udayanga Dimuthu S.Manamgoda Xingzhong Liu Ekachai Chukeatirote Kevin D.Hyde State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesNo 31st West Beichen RoadChaoyang DistrictBeijing 100101People’s Republic of China Institute of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand

t species of Colletotrichum are associated with anthracnose of a wide range of host plants including cultivated and wild tropical *** genetic and ecological diversity of species associated with wild fruits are poorly explored,as compared to those associated with pre and postharvest diseases of cultivated *** the present study,isolates of Colletotrichum were obtained from commercially available cultivated fruits,wild fruits(from native trees in natural habitats)and a few herbaceous hosts collected in northern *** isolates were initially characterized based on analysis of complete sequences of nuclear ribosomal internal transcribed spacer(ITS),into the genetically defined species complexes of Colletotrichum gloeosporioides,***,*** and *** isolates were primarily identified in the *** species complex,based on a strongly supported clade within the ITS gene tree and were further characterized using multi-gene phylogenetic analyses and *** analyses of ITS,partial sequences of actin(ACT),calmodulin(CAL),glyceraldehyde-3-phosphate dehydrogenase(GAPDH),glutamine synthetase(GS)andβtubulin(TUB2)genetic markers were performed individually and in *** gloeosporioides sensu stricto was identified from lime(Citrus aurantifolia)and rose apple(Syzygium samarangense).Colletotrichum fructicola was isolated from dragon fruit(Hylocerous undatus)and jujube(Ziziphus sp.).Colletotrichum endophytica was found only from an unknown wild *** observed a considerable genetic and host diversity of species occurring on tropical fruits within the clade previously known as Colletotrichum siamense sensu *** clade consists of isolates identified as pre and postharvest pathogens on a wide range of fruits,including coffee(Coffea arabica),custard apple(Annona reticulata),Cerbera sp.,figs(Ficus racemosa)mango(Mangifera indica),neem(Azadirachta indica)and papaya(Carica papaya)and was the dom

关键词： Colletotrichum gloeosporioides Multi-gene phylogeny Postharvest diseases Quarantine Systematics species complex Tropical Asia Wild fruits

The genus Thelonectria(Nectriaceae,Hypocreales,Ascomycota)and closely related species with cylindrocarpon-like asexual states

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Fungal Diversity 2016年第5期80卷 411-455页

作者： Catalina Salgado-Salazar Amy YRossman Priscila Chaverri Department of Plant Science and Landscape Architecture University of Maryland2112 Plant Sciences BuildingCollege ParkMD 20742USA Present address:Systematic Mycology and Microbiology Laboratory USDA-ARSBeltsvilleMD 20705USA Escuela de Biología Universidad de Costa RicaApartado 11501-2060San PedroSan JoséCosta Rica

The genus Thelonectria and closely related species with cylindrocarpon-like asexual states are a group of perithecial ascomycetes in the family Nectriaceae that occur as saprobes and in few cases as pathogens of hardwood trees,shrubs or other *** a key component of forest ecosystems around the world,species relationships and distributions of these fungi are largely *** objectives of this study were to:1)infer species rank phylogenetic relationships of the genus Thelonectria and closely related species with cylindrocarpon-like asexual states and test the monophyly of each of the groups studied;2)delimit taxa establishing taxon circumscriptions;3)resolve nomenclatural issues by identifying redundantly used names and synonyms;and 4)provide an updated outline to the genus,geographical distributions data and identification tools,specifically diagnostic keys and molecular data that can be used as molecular *** recovered consensus phylogeny resulted in a narrow circumscription of the genus Thelonectria,based on the type ***,excluding one of the common species *** to the phylogenetic analyses,*** belongs in a segregate clade that should be recognized as a different *** the genus Thelonectria,a total of four new species and three new combinations are ***,three new genera,closely related to Thelonectria,are described to accommodate species displaying a morphological resemblance to those of Thelonectria:Cinnamomeonectria *** *** as type species,Macronectria *** *** as type species and including four additional newly described species,and Tumenectria *** *** as type species.

关键词： Biodiversity Molecular systematics Nectria-like fungi Phylogeny Saprobes species complex species delimitation Taxonomy

A New species of Japalura (Squamata: Sauria:Agamidae) from Upper Lancang (Mekong) Valley of Eastern Tibet, China

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Asian Herpetological Research 2015年第3期6卷 159-168页

作者： Kai WANG Ke JIANG Gang PAN Mian HOU Cameron D.SILER Jing CHE State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of Sciences Sam Nobel Oklahoma Museum of Natural History and Department of Biology University of Oklahoma Institute of Plateau Ecology Tibet Agriculture and Animal Husbandry College Academy of Continuing Education Sichuan Normal University

A new species of the agamid genus Japalura is described based on 15 specimens from the upper Lancang（Mekong） Valley of eastern Tibet, PR China. Populations of the new species, Japalura vela sp. nov., were previously recognized as J. flaviceps. The new species is morphologically most similar to J. batangensis, J. micangshanensis, J. variegata, and J. zhaoermii, but is distinguished from the four species and all remaining congeners by the following combination of morphological characters： 1） small adult size（SVL 56–69 mm in males, 59–66 mm in females）; 2） ratio of tail TAL/SVL 1.85–2.06; 3） ratio of hind limb HLL/SVL 0.72–0.81; 4） T4 S 24 or 25; 5） concealed tympanum; 6） transverse gular fold present; 7） gular pouch present; 8） axillary fold present; 9） a pronounced, continuous, sail-like vertebral crest along length of body in males; 10） ground dorsal coloration black in males; 11） distinct gray transverse streaks on dorsal surface of head; 12） black radiated streaks around eyes; 13） distinct, black vermiculate stripes on ventral surface of head in both sexes; 14） a strongly jagged dorsolateral stripe from neck to base of tail on each side of vertebral crest in males; and 15） absence of gular spots in both sexes. General distribution patterns of the genus in the Hengduan Mountains region are also discussed.

关键词： distribution Hengduan Mountains Japalura J.flaviceps species complex

Colletotrichum species and complexes:geographic distribution,host range and conservation status

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Fungal Diversity 2021年第5期110卷 109-198页

作者： Pedro Talhinhas Riccardo Baroncelli LEAF-Linking Landscape EnvironmentAgriculture and Food-Research CentreAssociated Laboratory TERRAInstituto Superior de AgronomiaUniversidade de LisboaTapada da Ajuda1349-017 LisbonPortugal Department of Agricultural and Food Sciences(DISTAL) University of BolognaBolognaItaly

The taxonomy of the genus Colletotrichum has undergone tremendous changes over the last decade,with over 200 species being currently recognised and species complexes being informally used to cluster those *** of these species are important plant pathogens,some rather polyphagous and others host-specific,but several occur seldomly and some may in fact be ecologically *** mainly on literature from the past decade,in this work we review the occurrence,geographic distribution and host spectrum of currently recognised Colletotrichum species under phylogenetic,pathologi-cal/agronomic and ecological perspectives,providing a list arranged by Colletotrichum species and species complexes.A total of 257 species are listed and grouped into 15 species *** this work we have recorded 1353 unique host species-Colletotrichum species association records from 720 hosts,with the Fabaceae as the family with higher number of hosts(52 host species)but with the Rosaceae as the family with the highest number of host species-Colletotrichum species association records(118 association records).According to occurrence data,88 species are common in nature,128 were considered as data deficient and 41 are threatened,some of which are likely extinct from nature and preserved only in cul-ture *** species are relevant plant pathogens,in some cases geographically confined and thus of potential quarantine *** on the major changes that occurred on Colletotrichum taxonomy over the last decade,this work provides a comprehensive overview of occurrence data of Colletotrichum species,compiling host range and geographical distribution,with relevance for plant pathology and conservation *** current taxonomic framework in Colle-totrichum is revealing numerous species but poses challenges to the employment of standard criteria for the evaluation of biological conservation of these *** advocate that conservation mycology and taxonomy should

关键词： Colletotrichum species complex Taxonomy Host range Geographic distribution Conservation mycology

Genetic analysis and ecological niche modeling delimit species boundary of the Przewalski’s scorpion(Scorpiones: Buthidae) in arid Asian inland

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Zoological Systematics 2020年第2期45卷 81-96页

作者： Xueshu Zhang Gaoming Liu Yu Feng Dexing Zhang Chengmin Shi State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of SciencesBeijing 100101China

Reliable delimitation of venomous scorpions is not only consequential to toxicological studies but also instructive to conservation and exploration of these important medical *** the present study,we delimited species boundary for the the Przewalski’s scorpion from arid northwest China through a combined approach employing phylogenetic analysis,ecological niche modeling and morphological *** results indicate that the Przewalski’s scorpion represent an independent taxonomic unit and should be recognized as full species rank,Mesobuthus przewalskii *** species and the Chinese scorpion *** represent the eastern members of the *** species group which manifests a trans-Central Asia distribution across the Tianshan Mountains *** also discussed the likely geographic barrier and climatic boundary that demarcate distributional range of the the Przewalski’s scorpion.

关键词： Mesobuthus species complex mitochondrial DNA ecological niche modeling distribution range

Biosystematic studies on Adenophora potaninii ***(Campanulaceae) V.A taxonomic treatment

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Journal of Systematics and Evolution 2010年第6期48卷 445-454页

作者： Song GE De-Yuan HONG(State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China) (State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Beijing 100093 China) *Correspondence: Song GE *Correspondence: Author for correspondence. E-mail: gesong@*** Tel.: 86-10-62836097 Fax: 86-10-62590843.

Adenophora is an extremely variable genus,and its taxonomy is very *** the genus,Adenophora potaninii complex,including ***,***,***,***,***,***,and *** ***,is a typical group with different taxonomical treatments due to high level of morphological *** carried out extensive biosystematic studies based on population sampling,transplantation experiments and offspring tests,cluster analysis,and a crossing *** results reveal four main findings.(i) Leaf forms of the *** complex were extremely polymorphic;the leaf form of *** and ***,and that of *** and *** could be found,respectively,on a single population or among the offsprings of a single plant.(ii) Cluster analysis and a crossing experiment indicated that *** and *** could not be separated from ***,nor *** from ***.(iii) Adenophora potaninii and *** were gradational in morphology and their compatibility value was slightly reduced compared to that within each entity.(iv) Adenophora lobophylla was distinct from the other members of the complex in shape and size of corolla,relative length of style,and shape of *** species was incompatible reproductively with the other members of the complex,but partly compatible with ***,a species in another ***,we recognized only one species with two subspecies in the complex,*** *** and ***,moved *** out of the complex,and reduced all the other names as new synonyms.

关键词： Adenophora potaninii biosystematics populations species complex taxonomy.