Acanthocotyle gurgesiella n. sp. (Monogenea: Acanthocotylidae) from the deep-sea skate Gurgesiella furvescens (Rajidae) in the south-eastern Pacific

2017 ◽  
Vol 92 (2) ◽  
pp. 223-227 ◽  
Author(s):  
L.A. Ñacari ◽  
F.A. Sepulveda ◽  
R. Escribano ◽  
M.E. Oliva
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Dna Analysis ◽  
Mitochondrial Gene ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Full Description ◽  
Lsu Rdna ◽  
Molecular Analyses

AbstractLittle is known about the diversity of parasites of the deep-sea fish of the world's oceans. Here, a new species of monogenean parasite of the deep-sea skate Gurgesiella furvescens is described. Specimens of parasites were obtained from the skin of two specimens of the dusky finless skate, G. furvescens (Rajidae), in the vicinity of Valparaiso (33°S, 72°W), central Chile, from midwater trawl fishing at depths of 350–450 m. Both morphological and molecular analyses were conducted to provide a full description of the new species, named Acanthocotyle gurgesiella. For the molecular analyses, nuclear large subunit (LSU) rDNA and the mitochondrial gene cytochrome c oxidase 1 (COI) were used. From the morphological analysis and a comparison with the known species of the genus, A. gurgesiella can be identified by a combination of morphological characteristics, including the number of testes, number of radial rows of sclerites in the pseudohaptor, aperture of the genital pore and shape of the vitelline follicles. The results from the DNA analysis indicated that A. gurgesiella has a genetic divergence of 3.2–3.7% (LSU rDNA gene) from A. urolophi, the only congener species for which molecular data are available.

Diversity of Auricularia (Auriculariaceae, Auriculariales) in Thailand

Phytotaxa ◽  
2017 ◽  
Vol 292 (1) ◽  
pp. 19 ◽  
Author(s):  
ASANKA R. BANDARA ◽  
SAMANTHA C. KARUNARATHNA ◽  
ALAN J.L. PHILLIPS ◽  
PETER E. MORTIMER ◽  
JIANCHU XU ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Tree ◽  
New Records ◽  
Light Exposure ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Full Description ◽  
Fruiting Bodies ◽  
A New Species

The identification of Auricularia species has previously relied on the examination of macroscopic features of mushroom samples collected in Thailand. These features may vary with age, light exposure, moisture and other factors, making such identification prone to error. This study uses morphological characteristics and molecular data to improve upon previous classifications of Auricularia species. Fruiting bodies collected during recent field excursions and previous collections from herbaria were examined and sequenced for two loci, viz. ITS and rpb2. Auricularia asiatica is described as a new species based on both morphological characteristics and molecular data, and is introduced with a full description, illustrations and colour photographs. Auricularia cornea and A. villosula are described as new records from Thailand. A combined ITS and rpb2 phylogenetic tree is provided, showing the placement of five Auricularia species found in Thailand.

scholarly journals Four new species in the Tremella fibulifera complex (Tremellales, Basidiomycota)

MycoKeys ◽  
2021 ◽  
Vol 82 ◽  
pp. 33-56
Author(s):  
Long-Fei Fan ◽  
Renato Lúcio Mendes Alvarenga ◽  
Tatiana Baptista Gibertoni ◽  
Fang Wu ◽  
Yu-Cheng Dai
Keyword(s):  
New Species ◽  
Rna Polymerase Ii ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Elongation Factor ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Small Subunit ◽  
Molecular Evidence ◽  
Rrna Gene

Samples of species close to Tremella fibulifera from China and Brazil are studied, and T. fibulifera is confirmed as a species complex including nine species. Five known species (T. cheejenii, T. fibulifera s.s., T. “neofibulifera”, T. lloydiae-candidae and T. olens) and four new species (T. australe, T. guangxiensis, T. latispora and T. subfibulifera) in the complex are recognized based on morphological characteristics, molecular evidence, and geographic distribution. Sequences of eight species of the complex were included in the phylogenetic analyses because T. olens lacks molecular data. The phylogenetic analyses were performed by a combined sequence dataset of the internal transcribed spacer (ITS) and the partial nuclear large subunit rDNA (nLSU), and a combined sequence dataset of the ITS, partial nLSU, the small subunit mitochondrial rRNA gene (mtSSU), the translation elongation factor 1-α (TEF1), the largest and second largest subunits of RNA polymerase II (RPB1 and RPB2). The eight species formed eight independent lineages with robust support in phylogenies based on both datasets. Illustrated description of the six species including Tremella fibulifera s.s., T. “neofibulifera” and four new species, and discussions with their related species, are provided. A table of the comparison of the important characteristics of nine species in the T. fibulifera complex and a key to the whitish species in Tremella s.s. are provided.

Morphological characteristics and phylogenetic analyses revealed a new Calocybe (Lyophyllaceae, Basidiomycota) species from northeast China

Phytotaxa ◽  
2021 ◽  
Vol 490 (2) ◽  
pp. 203-210
Author(s):  
JIZE XU ◽  
XIAODONG YU ◽  
CHUNLAN ZHANG ◽  
YU LI
Keyword(s):  
New Species ◽  
Internal Transcribed Spacer ◽  
Northeast China ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Nuclear Ribosomal Dna ◽  
Full Description ◽  
Molecular Phylogenetic ◽  
A New Species

A new species, Calocybe decurrens, is illustrated and described in detail based on morphological characteristics and phylogenetic analyses. Calocybe decurrens is mainly characterized by its decurrent gills and by its stipe that discolors upon maturation. Molecular phylogenetic analyses were based on the internal transcribed spacer (ITS1-5.8S-ITS2) and the large subunit of the nuclear ribosomal DNA (nrLSU) sequences. The results indicated that its affiliation is in genus Calocybe, where it occupies an isolated position. A full description, color images, illustrations and a phylogenetic tree to show the placement of the new species are provided.

Xanthagaricus siamensis sp. nov. (Agaricaceae), a new species with dull green lamellae from northern Thailand

Phytotaxa ◽  
2020 ◽  
Vol 437 (1) ◽  
pp. 14-22
Author(s):  
YUAN S. LIU ◽  
JIAN-KUI (JACK) LIU ◽  
PHONGEUN SYSOUPHANTHONG ◽  
KEVIN D. HYDE ◽  
SAISAMORN LUMYONG
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Nuclear Ribosomal Dna ◽  
Molecular Evidence ◽  
Internal Transcribed Spacer Region ◽  
Northern Thailand ◽  
A New Species

Xanthagaricus siamensis, a new species in the family Agaricaceae, was discovered in northern Thailand and is here introduced based on its morphological features and molecular data. It is characterized by small to medium-sized basidiomata, a convex to plano-convex with depressed center pileus when mature, the presence of greyish orange to violet-brown fibrillose squamules on the pileus, lamellae that start out white, change to pinkish white when damaged, then change to dull green with age. Additionally, the annulus is fugacious, and the pileipellis is recognized as a cutis which morphologically distinguishes it from all other known Xanthagaricus. Phylogenetic analysis of the internal transcribed spacer region (ITS) and the large subunit of the nuclear ribosomal DNA (nrLSU) sequence data indicated that the three specimens of X. siamensis form a distinct lineage within Xanthagaricus, and they formed a well-supported clade representing the genus Xanthagaricus. Detailed illustrations of macro- and micro-morphological characteristics and descriptions are provided, as well as other relevant molecular evidence.

Morphological characters and molecular data reveal a new species of Rhodonia (Polyporales, Basidiomycota) from China

Phytotaxa ◽  
2017 ◽  
Vol 328 (2) ◽  
pp. 175
Author(s):  
YUAN YUAN ◽  
LU-LU SHEN
Keyword(s):  
New Species ◽  
Rna Polymerase Ii ◽  
Dna Sequences ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Northwest China ◽  
Morphological Characters ◽  
Molecular Data ◽  
Molecular Evidence ◽  
A New Species

A new polypore, Rhodonia tianshanensis, collected from West Tianshan Nature Reserve in Xinjiang Autonomous Region (northwest China), is described and illustrated based on morphological characteristics and molecular evidence. It is characterized by having resupinate basidiomata with an oblique tube layer, fusoid cystidioles in the hymenium, and cylindrical basidiospores. Based on multiple loci DNA sequences including the internal transcribed spacer (ITS), the large subunit (nLSU), and the second subunit of RNA polymerase II (RPB2) regions, our phylogeny strongly supported R. tianshanensis as a new species belonging to the genus Rhodonia.

Morphological characteristics and molecular data reveal two new species of Dentipellis from China

Phytotaxa ◽  
2017 ◽  
Vol 323 (1) ◽  
pp. 69 ◽  
Author(s):  
LU-LU SHEN ◽  
MING WANG
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Internal Transcribed Spacer ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Two New Species

Two new species of Dentipellis are described from China based on morphological characteristics and molecular data. Dentipellis longiuscula is characterized by annual, resupinate hydnoid basidiomata with moderately long spines, rough basidiospores (5–6 × 3–3.6 µm) and absence of gloeoplerous hyphae and gloeocystidia. Dentipellis tropicalis is characterized by hydnoid basidiomata with numerous gloeocystidia presenting in hymenium, and minutely rough basidiospores (5–5.5 × 2.5–3.2 µm). Phylogenetic analysis based on the internal transcribed spacer (ITS) and nuclear large subunit ribosomal (nLSU) RNA gene regions confirmed the affinity of the new species in Dentipellis and indicated their relationships with other species in the genus.

scholarly journals Three new species of subterranean amphipods (Pseudocrangonyctidae: Pseudocrangonyx) from limestone caves in South Korea

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10786
Author(s):  
Chi-Woo Lee ◽  
Gi-Sik Min
Keyword(s):  
New Species ◽  
South Korea ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Far East ◽  
Morphological Characteristics ◽  
Amphipod Species ◽  
Molecular Analyses ◽  
Morphological Variants ◽  
Three New Species

Pseudocrangonyx Akatsuka & Komai, 1922 is the most diverse group of subterranean amphipods in the groundwater communities of Far East Asia. In Korea, the diversity of the group has been underestimated due to the records of morphological variants of Pseudocrangonyx asiaticus Uéno, 1934. To estimate the species diversity, we analyzed the morphological characteristics and conducted molecular analyses of specimens collected from Korean caves that we treated as morphological variants of P. asiaticus. We described three new subterranean pseudocrangonyctid amphipod species, P. deureunensis sp. nov., P. kwangcheonseonensis sp. nov., and P. hwanseonensis sp. nov., from the groundwater of limestone caves in South Korea. Additionally, we determined sequences of the nuclear large subunit ribosomal RNA and the mitochondrial cytochrome c oxidase subunit I gene of the new species for molecular analyses. Molecular phylogenetic analyses revealed that the three new species formed a monophylum together with P. joolaei Lee et al., 2020 and P. wonkimi Lee, Tomikawa & Min, 2020, which are species that are endemic to Korean caves.

Pleurotus sirindhorniae (Pleurotaceae, Agaricales), a new species from northern Thailand

Phytotaxa ◽  
2020 ◽  
Vol 460 (4) ◽  
pp. 285-295
Author(s):  
NAKARIN SUWANNARACH ◽  
JATURONG KUMLA ◽  
KANITTA SATIENPERAKUL ◽  
WITCHAPHART SUNGPALEE ◽  
KRIANGSAK SRI-NGERNYUANG ◽  
...  
Keyword(s):  
New Species ◽  
Rna Polymerase Ii ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Elongation Factor ◽  
Morphological Characteristics ◽  
Internal Transcribed Spacers ◽  
Nuclear Ribosomal Dna ◽  
Full Description ◽  
Northern Thailand

A new saprophytic fungus, Pleurotus sirindhorniae, is described based on collections from northern Thailand. This species is characterized by greyish yellow to olive brown pileus, ellipsoid to elongate basidiospores and clavate to mucronate cheilocystidia. It is distinguished from the previously described Pleuotus species by its distinct morphological characteristics. Molecular phylogenetic analyses of the large subunit (LSU) and internal transcribed spacers (ITS) of the nuclear ribosomal DNA (rDNA), the translation elongation factor 1-alpha (tef1) and the RNA polymerase II largest subunit (rpb1) genes also support P. sirindhorniae as a distinct new species within the genus Pleurotus. A full description, color photographs, illustrations and a phylogenetic tree to show the position of P. sirindhorniae are provided.

A taxonomic revision of Anthothela (Octocorallia: Scleraxonia: Anthothelidae) and related genera, with the addition of new taxa, using morphological and molecular data

Zootaxa ◽  
2017 ◽  
Vol 4304 (1) ◽  
pp. 1 ◽  
Author(s):  
KIRRILY M. MOORE ◽  
PHILIP ALDERSLADE ◽  
KAREN J. MILLER
Keyword(s):  
New Species ◽  
New Genus ◽  
Mitochondrial Gene ◽  
Morphological Characteristics ◽  
Taxonomic Revision ◽  
Molecular Data ◽  
Molecular Evidence ◽  
Nominal Species ◽  
Generic Level ◽  
Two New Species

A complete taxonomic revision of the genus Anthothela (Anthothelidae) and closely related taxa is presented herein, based on original type material of nominal species and additional specimens from multiple deep-water surveys. A multi-disciplinary approach was used, combining morphological characteristics such as colonial branching patterns, polyp structure, and sclerite form and arrangement, together with phylogenetic reconstructions using two mitochondrial gene regions (mtMutS and igr1–cox1). The genus Anthothela, with seven nominal species globally, is here divided into four genera, two of which are new. Three of the original species of Anthothela are validated (A. grandiflora Sars, 1856, A. pacifica Kükenthal, 1913 and A. tropicalis Bayer, 1961), Spongioderma (?) vickersi Benham, 1928 is reassigned to Anthothela and two new species, A. aldersladei and A. quattriniae, are described. Anthothela argentea Studer, 1894, A. macrocalyx (Nutting, 1911) and A. nuttingi Bayer, 1956 are reassigned to Victorgorgia López-González & Briand, 2002 and two new species of this genus, V. eminens and V. nyahae are described. A new family, Victorgorgiidae is described for Victorgorgia due to clear morphological and genetic differences from Anthothela, the type genus of Anthothelidae. A new genus, Williamsium (Anthothelidae), is described for A. parviflora Thomson, 1916 which is restricted to South African waters. A number of North Atlantic Ocean specimens that have traditionally been mistaken for Anthothela grandiflora were found to be synonymous with Alcyonium grandiflorum (Tixier-Durivault & d'Hondt, 1974) and a second new genus, Lateothela (Anthothelidae), is erected for these specimens based on morphological and molecular evidence that Alcyonium grandiflorum was incorrectly placed in the genus Alcyonium Linnaeus. There is good congruence between morphological characteristics and molecular data at a generic level but at a species level, the degree of congruence was inconclusive as morphological and genetic variation is very low. Anthothela and Lateothela n. gen. are found to be closely related to some nominal Alcyonium species, and the family Anthothelidae and subfamily Anthothelinae are shown to be paraphyletic. These are the first records of Anthothela and Victorgorgia from Australian waters. 

Gyrodon suthepensis (Boletales, Basidiomycota), a new ectomycorrhizal fungus from northern Thailand and its ecomycorhizal association

Phytotaxa ◽  
2017 ◽  
Vol 321 (2) ◽  
pp. 181
Author(s):  
JATURONG KUMLA ◽  
NAKARIN SUWANNARACH ◽  
SANTHITI VADTHANARAT ◽  
SAISAMORN LUMYONG
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Ectomycorrhizal Fungus ◽  
Internal Transcribed Spacers ◽  
Nuclear Ribosomal Dna ◽  
Full Description ◽  
Northern Thailand ◽  
Mycorrhizal Association

A new ectomycorrhizal fungus, Gyrodon suthepensis, is described based on collections from northern Thailand. It can be distinguished from the previously described Gyrodon species by the morphological characteristics. The molecular phylogenetic analyses of the internal transcribed spacers (ITS) and large subunit (LSU) of the nuclear ribosomal DNA confirms the position of the new species within the family Paxillaceae. The full description, color photographs, illustrations and the phylogenetic tree to show the position of G. suthepensis are provided. The new species grows in association with the ectomycorrhizal tree Betula alnoides, and the morphology and anatomy of mycorrhizas are described. Moreover, the identification of mycorrhizal association of G. suthepensis was confirmed by molecular methods.

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