scholarly journals Taxonomy and phylogeny of Lopharia s.s., Dendrodontia, Dentocorticium and Fuscocerrena (Basidiomycota, Polyporales)

MycoKeys ◽  
2018 ◽  
Vol 32 ◽  
pp. 25-48 ◽  
Author(s):  
Shi-Liang Liu ◽  
Karen K. Nakasone ◽  
Sheng-Hua Wu ◽  
Shuang-Hui He ◽  
Yu-Cheng Dai
Keyword(s):  
Rna Polymerase Ii ◽  
Species Complex ◽  
Phylogenetic Analyses ◽  
Eastern China ◽  
Taxonomic Status ◽  
Northern China ◽  
New Combinations ◽  
Corticioid Fungi ◽  
Type Specimens ◽  
Tropical Areas

Eleven taxa ofLopharias.s.,Dendrodontia,DentocorticiumandFuscocerrenain Polyporales are included in the phylogenetic analyses of nuc rDNA ITS1-5.8S-ITS2 (ITS), D1-D2 domains of nuc 28S rDNA (28S) and RNA polymerase II second-largest subunit (rpb2) sequences. New speciesLophariaresupinataandL.sinensisare described and illustrated.Lophariaresupinata, from south-eastern China, is closely related toL.ayresii, andL.sinensis, from northern China, is related toL.cinerascensandL.mirabilis.Lophariamirabilisspecimens from temperate to tropical areas with varied hymenophore configurations all cluster together in a fully supported clade.DendrodontiaandFuscocerrenaare shown to be synonyms ofDentocorticium, which is phylogenetically related toLopharia. Four new combinations,Dentocorticiumbicolor,D.hyphopaxillosum,D.portoricenseandD.taiwanianum, are proposed. Revised generic descriptions ofLophariaandDentocorticiumare provided with keys to the six accepted species in each genus. A list of all names inLophariaandDentocorticiumare presented with their current taxonomic status. Type specimens ofDentocorticiumbrasilienseandD.irregularewere examined and determined to be later synonyms ofPunctulariasubhepaticaandDiplomitoporusdaedaleiformis, respectively.Corticioid fungi, dendrohyphidia, species complex, wood-inhabiting fungi

The Vietnamese population of Megophrys kuatunensis (Amphibia: Megophryidae) represents a new species of Asian horned frog from Vietnam and southern China

Zootaxa ◽  
2017 ◽  
Vol 4344 (3) ◽  
pp. 465 ◽  
Author(s):  
BENJAMIN TAPLEY ◽  
TIMOTHY CUTAJAR ◽  
STEPHEN MAHONY ◽  
CHUNG THANH NGUYEN ◽  
VINH QUANG DAU ◽  
...  
Keyword(s):  
New Species ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Eastern China ◽  
Taxonomic Status ◽  
Species Group ◽  
Type Specimens ◽  
Vietnamese Population ◽  
Group A ◽  
A New Species

The Asian frog genus Megophrys is a diverse group of morphologically conserved, forest-dwelling frogs. The genus harbours highly localised species diversification and new species continue to be described on a regular basis. We examined the taxonomic status of a population of Megophrys frogs from the Hoang Lien Range in northern Vietnam and southern China previously identified as M. kuatunensis (subgenus Panophrys). Preliminary phylogenetic analyses using a fragment of 16S rDNA places the species in question within the Megophrys (subgenus Panophrys) species group, a primarily Chinese radiation within the genus. On the basis of morphological, molecular and bioacoustic data, we conclude that this population does not represent M. kuatunensis, or any known species in the genus. We herein describe this species of Megophrys as new. Known only from Sa Pa District, Lao Cai Province in Vietnam and Jinping County, Yunnan Province in China, the new species is likely to be threatened by ongoing deforestation in the region. We provide an updated species description of M. kuatunensis based on type specimens, and suggest that M. kuatunensis is likely to be restricted to eastern China.  

scholarly journals Redefining species limits in the Fusarium fujikuroi species complex

2021 ◽  
Author(s):  
N. Yilmaz ◽  
M. Sandoval-Denis ◽  
L. Lombard ◽  
C.M. Visagie ◽  
B.D. Wingfield ◽  
...  
Keyword(s):  
Rna Polymerase ◽  
Rna Polymerase Ii ◽  
Species Complex ◽  
Phylogenetic Analyses ◽  
Elongation Factor ◽  
Clinical Importance ◽  
Fusarium Fujikuroi ◽  
Type Specimens ◽  
Translation Elongation ◽  
Three New Species

The Fusarium fujikuroi species complex (FFSC) includes more than 60 phylogenetic species (phylospecies) with both phytopathological and clinical importance. Because of their economical relevance, a stable taxonomy and nomenclature is crucial for species in the FFSC. To attain this goal, we examined type specimens and representative cultures of several species by employing morphology and phylogenetic analyses based on partial gene fragments of the translation elongation factor 1-alpha (tef1), beta-tubulin (tub2), calmodulin (cmdA), RNA polymerase largest subunit (rpb1) and RNA polymerase II second largest subunit (rpb2). Based on these results three new species were delimited in the FFSC. Two of these phylospecies clustered within the African clade, and one in the American clade. Epitypes were also designated for six previously described FFSC species including F. proliferatum and F. verticillioides, and a neotype designated for F. subglutinans. Furthermore, both F. acutatum and F. ophioides, which were previously invalidly published, are validated.

scholarly journals Back to the roots: a reappraisal of Neocosmospora

2019 ◽  
Vol 43 (1) ◽  
pp. 90-185 ◽  
Author(s):  
M. Sandoval-Denis ◽  
L. Lombard ◽  
P.W. Crous
Keyword(s):  
Fusarium Solani ◽  
Species Complex ◽  
Species Recognition ◽  
Phylogenetic Analyses ◽  
New Combinations ◽  
Phylogenetic Species ◽  
Type Specimens ◽  
Rdna Its ◽  
Economic Significance ◽  
Animal Pathogens

The genus Neocosmospora (Fusarium solani species complex) contains saprobes, plant endophytes and pathogens of major economic significance as well as opportunistic animal pathogens. Advances in biological and phylogenetic species recognition revealed a rich species diversity which has largely remained understudied. Most of the currently recognised species lack formal descriptions and Latin names, while the taxonomic utility of old names is hampered by the lack of nomenclatural type specimens. Therefore, to stabilise the taxonomy and nomenclature of these important taxa, we examined type specimens and representative cultures of several old names by means of morphology and phylogenetic analyses based on rDNA (ITS and LSU), rpb2 and tef1 sequences. Sixty-eight species are accepted in Neocosmospora, 29 of them described herein as new; while 13 new combinations are made. Eleven additional phylogenetic species are recognized, but remain as yet undescribed. Lectotypes are proposed for eight species, seven species are epitypified and two species are neotypified. Notes on an additional 17 doubtful or excluded taxa are provided.

Species relationships in the dasyurid marsupial genus Pseudantechinus (Marsupialia : Dasyuridae): a re-examination of the taxonomic status of Pseudantechinus roryi

2017 ◽  
Vol 65 (4) ◽  
pp. 240 ◽  
Author(s):  
L. S. Umbrello ◽  
P. A. Woolley ◽  
M. Westerman
Keyword(s):  
Dna Sequences ◽  
Isolation By Distance ◽  
Phylogenetic Analyses ◽  
Mitochondrial Gene ◽  
Taxonomic Status ◽  
Museum Collections ◽  
Species Relationships ◽  
Type Specimens ◽  
Network Analyses ◽  
The Status

The status of Pseudantechinus roryi relative to its congeners has been determined from DNA sequences obtained from both nuclear and mitochondrial gene loci. Although all other recognised species of Pseudantechinus form reciprocally monophyletic lineages in phylogenetic analyses, individuals identified in museum collections as Ps. roryi (including type specimens) were indistinguishable from those identified as Ps. macdonnellensis. Ps. roryi is thus considered to be a synonym of Ps. macdonnellensis. Neighbour-joining network analyses failed to reveal any clear biogeographic differences between populations of Ps. macdonnellensis other than some evidence of isolation by distance.

scholarly journals Fungia fungites (Linnaeus, 1758) (Scleractinia, Fungiidae) is a species complex that conceals large phenotypic variation and a previously unrecognized genus

2020 ◽  
Vol 89 (2) ◽  
pp. 188-209
Author(s):  
Yutaro Oku ◽  
Kenji Iwao ◽  
Bert W. Hoeksema ◽  
Naoko Dewa ◽  
Hiroyuki Tachikawa ◽  
...  
Keyword(s):  
Species Complex ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Scleractinian Corals ◽  
Type Specimens ◽  
Mitochondrial Coi ◽  
Clade B ◽  
Unknown Species ◽  
Molecular Phylogenetic ◽  
Morphological Differences

Recent molecular phylogenetic analyses of scleractinian corals have resulted in the discovery of cryptic lineages. To understand species diversity in corals, these lineages need to be taxonomically defined. In the present study, we report the discovery of a distinct lineage obscured by the traditional morphological variation of Fungia fungites. This taxon exists as two distinct morphs: attached and unattached. Molecular phylogenetic analyses using mitochondrial COI and nuclear ITS markers as well as morphological comparisons were performed to clarify their phylogenetic relationships and taxonomic positions. Molecular data revealed that F. fungites consists of two genetically distinct clades (A and B). Clade A is sister to a lineage including Danafungia scruposa and Halomitra pileus, while clade B formed an independent lineage genetically distant from these three species. The two morphs were also found to be included in both clades, although the attached morph was predominantly found in clade A. Morphologically, both clades were statistically different in density of septal dentation, septal number, and septal teeth shape. These results indicate that F. fungites as presently recognized is actually a species complex including at least two species. After checking type specimens, we conclude that specimens in clade A represent true F. fungites with two morphs (unattached and attached) and that all of those in clade B represent an unknown species and genus comprising an unattached morph with only one exception. These findings suggest that more unrecognized taxa with hitherto unnoticed morphological differences can be present among scleractinian corals.

scholarly journals Systematics of the Etheostoma cinereum (Teleostei: Percidae) species complex (subgenus Allohistium)

Zootaxa ◽  
2012 ◽  
Vol 3277 (1) ◽  
pp. 43 ◽  
Author(s):  
STEVEN L. POWERS ◽  
BERNARD R. KUHAJDA ◽  
SARAH E. AHLBRAND
Keyword(s):  
Geographic Variation ◽  
Species Complex ◽  
Evolutionary History ◽  
Phylogenetic Analyses ◽  
Taxonomic Status ◽  
Species Concepts ◽  
Cyt B ◽  
Cumberland River

We examined geographic variation within the Ashy Darter, Etheostoma cinereum, of the mitochondrially enconded cyto-chrome b gene (cyt b) and nuclear recombination activation gene 1 (RAG1) as well as pigmentation, 6 meristic variables,and 20 morphometric variables for patterns indicative of speciation within the complex. Four geographically disjunct en-tities were identified by at least one of the datasets corresponding to the Cumberland, Duck, Elk, and upper Tennesseeriver systems. Monophyly of cyt b and RAG1 sequences, modal meristic differences, moderate morphometric divergence,and unique pigmentation in specimens from the Cumberland River suggest this entity represents an evolutionary speciesunder many different species concepts and is described herein as Etheostoma maydeni. Other populations exhibit varyingdegrees of divergence in the different datasets and have conflicting relationships in phylogenetic analyses using cyt b andRAG1 sequences, leaving the evolutionary history and taxonomic status of the Duck, Elk and upper Tennessee populations unclear.

Maluti Mystery: A systematic review of Amietia vertebralis (Hewitt, 1927) and Strongylopus hymenopus (Boulenger, 1920) (Anura: Pyxicephalidae)

Zootaxa ◽  
2008 ◽  
Vol 1962 (1) ◽  
pp. 33-48 ◽  
Author(s):  
JEANNE TARRANT ◽  
MICHAEL J. CUNNINGHAM ◽  
LOUIS H. DU PREEZ
Keyword(s):  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Taxonomic Status ◽  
Original Description ◽  
Type Specimen ◽  
Systematic Position ◽  
Type Specimens ◽  
Morphological Examination ◽  
Species Type ◽  
Original Application

The taxonomic status of Amietia vertebralis and Strongylopus hymenopus, two frogs restricted to the Maluti-Drakensberg highlands in southern Africa, is unclear. Here, morphological examination and phylogenetic analyses elucidate the systematic position of these two species. Type specimens of both species were examined and compared with more recent collections to clarify their identity. These comparisons revealed discrepancies between the original application of these names and their current usage. The holotype and original description of A. vertebralis match specimens from an extant population at that species’ type locality that are currently assigned to S. hymenopus. Furthermore, the type specimen of S. hymenopus is of uncertain provenance and does not match well with either of the forms currently associated with these names. We assessed both intraspecific and interspecific variability using DNA sequence data. Broad sampling of the form currently assigned to A. vertebralis revealed very little genetic variation thereby dispelling the hypothesis that this is a compound taxon. The generic placement of both species within the family Pyxicephalidae was resolved using a combined dataset of mitochondrial 16S rDNA and nuclear RAG1 gene sequences. The form currently recognised as S. hymenopus was excluded from the otherwise monophyletic genus Strongylopus, and was placed instead within Amietia. Based on these data a revised application of both species names is recommended here. Populations currently assigned to Amietia vertebralis are referred to Amietia umbraculata and those attributed to Strongylopus hymenopus are referred instead to Amietia vertebralis.

Molecular phylogeny and morphological diversity of the Niviventer fulvescens species complex with emphasis on species from China

2020 ◽  
Author(s):  
Deyan Ge ◽  
Anderson Feijó ◽  
Alexei V Abramov ◽  
Zhixin Wen ◽  
Zhengjia Liu ◽  
...  
Keyword(s):  
Southeast Asia ◽  
Species Complex ◽  
Phylogenetic Analyses ◽  
Eastern China ◽  
Morphological Diversity ◽  
Taxonomic Revision ◽  
Molecular Data ◽  
Whole Body ◽  
Genetic Lineages ◽  
Distinct Lineage

Abstract The Niviventer fulvescens species complex (NFSC), a group of abundant and taxonomically ambiguous rodent taxa, is distributed from Southeast Asia to south-eastern China. We combined molecular and morphological datasets to clarify the species composition and variation of the NFSC. Our phylogenetic analyses, using molecular data, recovered eight genetic lineages in the NFSC, including a novel, distinct lineage from Jilong, Tibet, China, which is described as a new species, N. fengi sp. nov. The species status of N. fengi is supported by a species delimitation analysis, and it is morphologically distinguished from other members of the NFSC by its greyish dorsal fur, soft hairs covering the whole body and a hairy tail. NFSC species bearing well-developed spines are found at lower elevations. A comprehensive taxonomic revision of the NFSC within China is provided, represented by five species: N. cremoriventer, N. fulvescens, N. huang, N. mekongis comb. nov. and N. fengi. A further study of this species complex, including samples from Southeast Asia, is needed.

Evaluation of the taxonomic status of the genus Aliella (Compositae, Gnaphalieae): a recircumscription of the genus Phagnalon

Phytotaxa ◽  
2013 ◽  
Vol 148 (1) ◽  
pp. 1 ◽  
Author(s):  
NOEMÍ MONTES-MORENO ◽  
NÚRIA GARCIA-JACAS ◽  
CARLES BENEDÍ ◽  
LLORENÇ SÁEZ
Keyword(s):  
Phylogenetic Analyses ◽  
Taxonomic Status ◽  
The Other ◽  
New Combinations ◽  
Molecular Approach ◽  
Ecological Data ◽  
Diagnostic Characters ◽  
Distribution Maps ◽  
Atlas Mountains ◽  
Taxonomic Evaluation

A taxonomic evaluation of the genus Aliella, endemic to the Moroccan Atlas Mountains, is presented. We evaluate the taxonomic status of Aliella using a morphologic and molecular approach. Firstly, we discuss the variability and usefulness of its morphological diagnostic characters. Secondly, we analyse nuclear ETS and ITS, and chloroplast ycf3-trnS and trnT-trnL spacers. Phylogenetic analyses of the nrDNA and cpDNA spacers suggest the paraphyly of Aliella and Phagnalon. Two species of Aliella, A. ballii and A. embergeri, form a strongly supported clade. In contrast, relationships of A. platyphylla to A. ballii and A. embergeri are only weakly supported, and A. iminouakensis do not form a group with the other species and shows two different haplotypes. The morphological and diagnostic characters of Aliella are described and compared with an extensive sampling of the closely related genus Phagnalon. Our results strongly suggest that Aliella should be merged into Phagnalon. For each accepted taxon, taxonomical, chorological, and ecological data are provided. Six taxa are recognized, three species and three subspecies. Three lectotypifications of specific names and three new combinations are proposed. New descriptions and distribution maps of the recognized taxa are given.

Taxonomic status of the Neotropical salamanders Bolitoglossa altamazonica and Bolitoglossa peruviana (Amphibia: Caudata: Plethodontidae), with the description of a new species from Northern Peru

Zootaxa ◽  
2020 ◽  
Vol 4834 (3) ◽  
pp. 365-406
Author(s):  
JUAN C. CUSI ◽  
GIUSSEPE GAGLIARDI-URRUTIA ◽  
ISABELA CARVALHO BRCKO ◽  
DAVID B. WAKE ◽  
RUDOLF VON MAY
Keyword(s):  
New Species ◽  
Species Complex ◽  
Phylogenetic Analyses ◽  
Nuclear Gene ◽  
Taxonomic Status ◽  
Genetic Distances ◽  
Conservation Area ◽  
Northern Peru ◽  
Rag 1 ◽  
Hands And Feet

We examine the phylogenetic relationships among salamanders of the genus Bolitoglossa (Eladinea) distributed in the Amazonian basin of northern Peru and southern Ecuador and assess species diversity based on morphological and phylogenetic analyses. We infer a molecular phylogeny using sequences from two mitochondrial (Cytb, 16S) and two nuclear genes (RAG–1, POMC). We find two well-supported subclades, one including [B. altamazonica + B. peruviana] + B. awajun sp. n., and the other including Bolitoglossa sp. Ituxi + Bolitoglossa sp. Jurúa. Ecuadorian lineages form divergent clades from the Peruvian lineages. Accordingly, Ecuadorian populations previously assigned to Bolitoglossa peruviana sensu lato are treated as members of a Bolitoglossa equatoriana species complex. A newly defined Bolitoglossa altamazonica species complex contains only populations from the Amazonian rainforest of Peru. Maximum likelihood and Bayesian Inference analyses confirm the phylogenetic placement of B. altamazonica and B. peruviana, and support recognition of a related new species of Bolitoglossa. The uncorrected genetic distances between the new species and B. altamazonica are 6.5% for Cytb and 4.9% for 16S; and the uncorrected genetic distances between the new species and B. peruviana are 8.0% for Cytb and 3.9% for 16S. Additionally, analyses of nuclear gene sequences show no haplotype sharing between the new species and closely related species. The new species is distinguished from its congeners by a combination of the following morphological characters: (1) Standard length mean 37.7 mm in males (range 32.0–42.2; n=5) and 41.4 mm in females (range 34.9–48.2; n=6); (2) in life, dorsal coloration uniformly brown with a dark brown triangular marking between the eyes or some irregular light cream spots or patches on the head, back and flanks; (3) iris pale golden; (4) in preservative, dark brown venter with cream mottlings or moderate-sized blotches on the gular region, belly, cloacal region and tail; (5) tips of third finger and third toe protuberant and pointed with nearly complete webbing on the hands and feet; (6) 11–26 maxillary teeth and 8–24 vomerine teeth. Given that the syntypes of B. altamazonica are lost, we designate a neotype for B. altamazonica from Allpahuayo Mishana National Reserve, Loreto department, Peru. Newly collected specimens from ~30 km NE from Moyobamba (type locality of B. peruviana) provide a better understanding of B. peruviana and enable us to show that it is the sister taxon of B. altamazonica. The new species is known from pre-montane forests in Cordillera Escalera Regional Conservation Area, Cordillera Azul National Park and Shucshuyacu, San Martin department, Peru at 485–1311 m elevation,  ~75 km SE from Moyobamba. Bolitoglossa awajun sp. n. is the fourth endemic species of salamander from Peru. 

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