scholarly journals A new species of the genus Sarsamphiascus Huys, 2009 (Copepoda: Harpacticoida: Miraciidae) from a sublittoral zone of Hawaii

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8506
Author(s):  
Jisu Yeom ◽  
Wonchoel Lee
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Morphological Characteristics ◽  
Distinct Species ◽  
Rrna Genes ◽  
Sublittoral Zone ◽  
Species Type ◽  
18S Rrna Genes ◽  
Sandy Sediments ◽  
A New Species

A new species of Sarsamphiascus Huys, 2009 was collected from sandy sediments of Hawaii at 12 –18 m depth. While the new species, Sarsamphiascus hawaiiensis sp. nov., is morphologically most closely related to S. kawamurai (Ueda & Nagai, 2005), the two species can be distinguished by the combination of the following morphological characteristics: elongated segments of the antennule in the new species, type of outer setae of the P5 exopod (bare in S. kawamurai), position of the inner seta of the P5 exopod in both sexes (more proximal in S. kawamurai), length and type of the setae of female P6 (shorter and bare in S. kawamurai). This is the first species of Sarsamphiascus from Hawaii to be discovered. Molecular analyses of mitochondrial cytochrome c oxidase subunit I (mtCOI) and nuclear 18S ribosomal RNA (18S rRNA) genes confirmed that S. hawaiiensis and S. kawamurai are distinct species.

A new species of Trichoglossum (Geoglossales, Ascomycota) from South Korea

Phytotaxa ◽  
2021 ◽  
Vol 527 (2) ◽  
pp. 117-124
Author(s):  
SEUNG-HAK LEE ◽  
PYEUNG-YEUL KO ◽  
KI-BEOM KOH ◽  
YONG-WOO JUN ◽  
YOUNG-JIN KIM ◽  
...  
Keyword(s):  
New Species ◽  
South Korea ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Distinct Species ◽  
Jeju Island ◽  
A New Species

Herein, a new species of the genus Trichoglossum is described. The new species named as T. jejuense was collected from Jeju Island in Korea. It is distinguished from other Trichoglossum species by thick, 8-spored asci and 15–16 septate ascospores. Phylogenetic analyses of the internal transcribed spacer of ribosomal RNA and morphological characteristics suggest that T. jejuense is a distinct species.

Ceriporia albomellea (Phanerochaetaceae, Basidiomycota), a new species from tropical China based on morphological and molecular evidences

Phytotaxa ◽  
2017 ◽  
Vol 298 (1) ◽  
pp. 20 ◽  
Author(s):  
YUAN YUAN ◽  
XIAO-HONG JI ◽  
FANG WU ◽  
JIA-JIA CHEN
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Molecular Evidence ◽  
Its Regions ◽  
Tropical China ◽  
A New Species

A new polypore, Ceriporia albomellea, collected from tropical China, is described and illustrated based on morphological characteristics and molecular evidence. It is characterized by thin, resupinate basidiome with a white subiculum, cottony margin, white to cinnamon-buff pores, clavate cystidia and oblong-ellipsoid basidiospores measured as 3.1–3.8 × 1.7–2 µm. Phylogenetic analysis based on the internal transcribed spacer (ITS) regions and nuclear large subunit (nLSU) ribosomal RNA gene regions supported C. albomellea as a distinctive species belonging to Ceriporia.

Morphological and genetic description of Moniliformis necromysi sp. n. (Archiacanthocephala) from the wild rodent Necromys lasiurus (Cricetidae: Sigmondontinae) in Brazil

2020 ◽  
Vol 94 ◽  
Author(s):  
A.P.N. Gomes ◽  
N.A. Costa ◽  
R. Gentile ◽  
R.V. Vilela ◽  
A. Maldonado
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Genetic Distances ◽  
Brazilian Cerrado ◽  
Wild Rodent ◽  
The Family ◽  
Molecular Phylogenies ◽  
A New Species

Abstract A new species of Moniliformis Travassos, 1915 (Acanthocephala: Moniliformidae) is described from the hairy-tailed bolo mouse, Necromys lasiurus Lund, 1840 (Cricetidae: Sigmondontinae), captured in the Brazilian Cerrado, in Uberlândia, state of Minas Gerais, Brazil. The specimens were studied by light and scanning electron microscopy. Molecular phylogenies were inferred from partial nuclear large subunit ribosomal RNA gene sequences and partial mitochondrial cytochrome c oxidase subunit I gene. The new species is distinguished from other moniliformid species by the number of rows and number of hooks per row, size of the proboscis, size of the eggs, host species and geographical distribution. Molecular phylogenies and genetic distances analyses demonstrated that Moniliformis necromysi sp. n. forms a well-supported monophyletic group with sequences of other species of Moniliformis and is distinguished from them, which agrees with the morphological characteristics, allocating the new species to this genus and to the family Moniliformidae Van Cleave, 1924. This is the first moniliformid acanthocephalan described from a wild rodent in Brazil.

Lecanicillium Aphanocladii – A New Species to the Mycoflora of Lithuania and a New Pathogen of Tree Leaves Mining Insects

2012 ◽  
Vol 18 (2) ◽  
pp. 133-146 ◽  
Author(s):  
Dalė Pečiulytė ◽  
Audrius Kačergius
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Morphological Characteristics ◽  
Horse Chestnut ◽  
Tilia Cordata ◽  
Tree Leaves ◽  
Leaf Mining ◽  
Phyllonorycter Issikii ◽  
Recovery Percentage ◽  
A New Species

Abstract Pečiulytė D., Kačergius A., 2012: Lecanicillium aphanocladii - a new species to the mycoflora of Lithuania and a new pathogen of tree leaves mining insects [Lecanicillium aphanocladii - nauja Lietuvos mikofloros rūšis ir naujas medžių lapus minuojančių vabzdžių patogenas pasaulyje]. - Bot. Lith., 18(2); 133-146. Popular park and city trees horse chestnut, Aesculus hippocastanum L. and small-leaved linden, Tilia cordata Miller suffer from damages of leaf mining moths, Cameraria ohridella Deschka & Dimic 1968 and Lithocolletis issikii Kumata 1825 (= Phyllonorycter issikii Humber 1822 (both Lepidoptera, Gracillariidae), respectively. In 2010-2011, fungi causing moth caterpillar mortality under field conditions were investigated in Vilnius city, Lithuania. Statistical analyses showed high recovery percentage (30.36 % and 31.92 % from C. ohridella and L. issikii caterpillar cadavers, respectively) of a new fungus, which was thereafter identified as Lecanicillium aphanocladii Zare & W. Gams 2001 based on a morphological characteristics and ITS rDNR sequence, which showed 99 % identity with Aphanocladium aranearum (Petch) W. Gams 1971 GenBank accessions No. AF455489 and AF455405 of ribosomal RNA gene (now renamed as L. aphanockladii).

A new species of Skeletocutis (Polyporales, Basidiomycota) from Yunnan of China

Phytotaxa ◽  
2016 ◽  
Vol 270 (4) ◽  
pp. 267 ◽  
Author(s):  
LU-SEN BIAN ◽  
CHANG-LIN ZHAO ◽  
FANG WU
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Yunnan Province ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Molecular Evidence ◽  
Its Regions ◽  
A New Species

A new species of Polyporales, named as Skeletocutis yunnanensis, was collected on angiosperm wood in northern Yunnan Province, southwestern China. It is described based on morphological characteristics and molecular evidence. The species belongs to the Skeletocutis subincarnata complex, but differs morphologically from all known species of the genus by white, cream to buff pores surface, angular pores mostly 5–6 per mm with entire mouths, a dimitic hyphal structure both in trama and subiculum, generative hyphae in whole basidiocarps covered by fine crystals, skeletal hyphae unchanged in KOH, not agglutinated, allantoid basidiospores measured as 3.5–4.5 × 1.0–1.2 µm, and growth on angiosperm wood. Phylogenetic analysis based on the internal transcribed spacer (ITS) regions and nuclear large subunit (nLSU) ribosomal RNA gene regions indicated that the new species grouped with Skeletocutis and nested in the tyromyces clade.

scholarly journals Two New Species of the Genus Longipedia Claus, 1863 (Copepoda: Harpacticoida: Longipediidae) from Korea, with an Update and a Key to Species

Diversity ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 590
Author(s):  
Hyun Woo Bang ◽  
Heejin Moon ◽  
Jinwook Back
Keyword(s):  
New Species ◽  
18S Rrna ◽  
Morphological Characteristics ◽  
Distal Segment ◽  
Rrna Genes ◽  
Korean Waters ◽  
The Family ◽  
Two New Species ◽  
Specific Variation ◽  
18S Rrna Genes

Benthic harpacticoids were collected from Korean waters. Two species were identified as members of the genus Longipedia Claus, 1863, because they have an extremely elongated distal segment of the P2 endopod. Longipedia koreana sp. nov. is morphologically most closely related to L. nichollsi Wells, 1980 and L. scotti Sars, 1903, but it can clearly be distinguished from both species based on the following morphological characteristics: P1 coxa with strong spinules near the outer margin and the distal element being much bigger than the proximal elements, P2 coxa with a small inner seta on the anterior surface, P4 exopod first segment without an inner element, and the P5 with a rectangular exopod (more than 3.5 times as long as wide). L. ulleungensis sp. nov. is similar to L. brevispinosa Gurney, 1927, L. spinulosa Itô, 1981, and L. weberi Scott A., 1909. However, L. ulleungensis sp. nov. is characterized by the P2 coxa with a reduced inner seta, the P4 exopod second segment without an inner seta, and the anal operculum with a long median projection, a single spine, and a group of outer spines on each side. In a molecular analysis using the mitochondrial cytochrome c oxidase subunit I (COI) and 18S ribosomal RNA (18S rRNA) genes, the inter-specific variation was 22.525–23.102% and 1.325–1.382% of COI and 18S rRNA between the two new species, respectively. A key to the family Longipediidae is provided herein.

scholarly journals Elatostema qinzhouense (Urticaceae), a new species from limestone karst in Guangxi, China

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11148
Author(s):  
Longfei Fu ◽  
Alexandre K. Monro ◽  
Tiange Yang ◽  
Fang Wen ◽  
Bo Pan ◽  
...  
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Plastid Genome ◽  
Single Copy ◽  
Rrna Genes ◽  
Partial Sequence ◽  
Molecular Evidence ◽  
Trna Genes ◽  
A New Species

Elatostema qinzhouense L.F. Fu, A.K. Monro & Y.G. Wei, a new species from Guangxi, China is described and illustrated. Morphologically, E. qinzhouense is most similar to E. hezhouense from which it differs by having smaller size of leaf laminae, fewer and smaller staminate peduncle bracts, longer pistillate peduncle bracts and a larger achene. This result is supported by the molecular evidence. The phylogenetic position of the new species within Elatostema is evaluated using three DNA regions, ITS, trnH-psbA and psbM-trnD, for 107 taxa of Elatostema s.l. (including E. qinzhouense). Bayesian inference (BI) and maximum likelihood (ML) analyses each recovered the same strongly supported tree topologies, indicating that E. qinzhouense is a member of the core Elatostema clade and sister to E. hezhouense. Along with the phylogenetic studies, plastid genome and ribosomal DNA (rDNA) sequences of the new species are assembled and annotated. The plastid genome is 150,398 bp in length and comprises two inverted repeats (IRs) of 24,688 bp separated by a large single-copy of 83,919 bp and a small single-copy of 17,103 bp. A total of 113 functional genes are recovered, comprising 79 protein-coding genes, 30 tRNA genes, and four rRNA genes. The rDNA is 5,804 bp in length and comprised the 18S ribosomal RNA partial sequence (1,809 bp), internal transcribed spacer 1 (213 bp), 5.8S ribosomal RNA (164 bp), internal transcribed spacer 2 (248 bp) and 26S ribosomal RNA partial sequence (3,370 bp). In addition, the chromosome number of E. qinzhouense is observed to be 2n = 26, suggesting that the species is diploid. Given a consistent relationship between ploidy level and reproductive system in Elatostema, the new species is also considered to be sexually reproducing. Our assessment of the extinction threat for E. qinzhouense is that it is Endangered (EN) according to the criteria of the International Union for Conservation of Nature.

scholarly journals Phylogenetic relationships of the bacchine flower flies (Diptera: Syrphidae) based on molecular characters, with a description of a new species of Melanostoma (Schiner, 1860)

2020 ◽  
Vol 89 (2) ◽  
pp. 210-244
Author(s):  
Ximo Mengual
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Mitochondrial Protein ◽  
Taxonomic Status ◽  
Junior Synonym ◽  
Rrna Genes ◽  
Molecular Evidence ◽  
Flower Flies ◽  
18S Rrna Genes ◽  
A New Species

The phylogenetic relationships among the genera of the tribe Bacchini sensu lato (i.e., Syrphinae with simple, unsegmented aedeagus) were inferred using molecular evidence. The mitochondrial protein-coding gene cytochrome c oxidase subunit I (COI) and the nuclear ribosomal 28S and 18S rRNA genes for 54 bacchine taxa were analyzed using Bayesian inference and Maximum Likelihood. Among the analyzed taxa there is a new species of Melanostoma (Schiner) from Cameroon, Melanostoma janeceki Mengual, sp. nov., which is described in full. This new species has a complete metasternum without excavation, a characteristic that is not present in other species of Melanostoma, usually with an excavated metasternum, but it is the diagnostic character of the genus Afrostoma Skevington, Thompson & Vockeroth. Based on the phylogenetic placement of Melanostoma janeceki Mengual, sp. nov. the taxonomic status of Afrostoma as a genus is discussed and a new generic classification of Bacchini stat. rev. and Melanostomini stat. rev. is presented in the light of the inferred phylogeny. Results did not recover Bacchini sensu lato monophyletic, but into two groups as follows: Melanostoma and related genera, and Baccha, Platycheirus and related genera. Pseudoplatychirus van Doesburg is considered junior synonym of Platycheirus Le Peletier & Audinet-Serville, and Afrostoma Skevington, Thompson & Vockeroth as junior synonym of Melanostoma. Pyrophaena Schiner and Eocheilosia Hull comb. nov. are ranked as valid genera, and consequently, the genus Platycheirus is divided into four subgenera: Platycheirus (Carposcalis) (Enderlein), Platycheirus (Pachysphyria) (Enderlein), Platycheirus (Platycheirus), and Platycheirus (Tuberculanostoma) (Fluke) comb. nov.

scholarly journals A new species of Contracaecum (Nematoda: Anisakidae) found parasitizing Nannopterum brasilianus (Suliformes: Phalacrocoracidae) and Hoplias argentinensis (Characiformes: Erythrinidae) in South America: morphological and molecular characterization of larval and adult stages

2020 ◽  
Vol 94 ◽  
Author(s):  
C.J. Sardella ◽  
M. Mancini ◽  
V. Salinas ◽  
R.O. Simões ◽  
J.L. Luque
Keyword(s):  
New Species ◽  
Morphological Characteristics ◽  
Nematode Species ◽  
Distinct Species ◽  
Molecular Data ◽  
Present Species ◽  
Third Stage ◽  
Molecular Phylogenetic ◽  
A New Species

Abstract Nematode species of the genus Contracaecum Railliet & Henry, 1912 have been reported around the world in many species of fish-eating birds and seals. Here, Contracaecum jorgei n. sp. is morphologically described using light and scanning electron microscopy for adults and fourth-stage larvae (L4) found in the bird Nannopterum brasilianus and third-stage larvae (L3) found in the freshwater fish Hoplias argentinensis, both from the province of Córdoba, Argentina. Additionally, sequences of cytochrome c oxidase subunit II were obtained from these specimens and molecular phylogenetic analysis was used to determine its relationships within the genus. The present species is distinguished from other species by the number and disposition of cephalic papillae; shape and size of the interlabia; length of the spicules; and number and arrangement of papillae in the posterior end of the male. Furthermore, in the molecular analyses, sequences obtained from adult L4 and L3 specimens of C. jorgei n. sp. were similar and grouped, forming an independent lineage, thus confirming it as a distinct species. Thus, morphological characteristics associated with molecular data support the proposal of a new species.

Phylogenetic relationships between Toxoplasma and Sarcocystis deduced from a comparison of 18S rDNA sequences

Parasitology ◽  
1995 ◽  
Vol 110 (5) ◽  
pp. 521-528 ◽  
Author(s):  
J. T. Ellis ◽  
K. Luton ◽  
P. R. Baverstock ◽  
G. Whitworth ◽  
A. M. Tenter ◽  
...  
Keyword(s):  
Ribosomal Rna ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Rrna Genes ◽  
Cycle Structure ◽  
Rdna Sequences ◽  
18S Rdna Sequences ◽  
18S Rrna Genes ◽  
Rrna Sequences ◽  
Sarcocystis Tenella

SUMMARYThe current taxonomy of parasites in the genus Sarcocystis is largely based on morphological characteristics as well as on host specificity and life-cycle structure. Recently, phylogenetic analyses of partial ribosomal RNA (rRNA) sequences provided support for paraphyly of Sarcocystis. We have tested the validity of this hypothesis by sequencing the complete 18S rRNA genes of Sarcocystis arieticanis, Sarcocystis gigantea and Sarcocystis tenella and comparing them with gene sequences derived from other taxa of the phylum Apicomplexa. The results obtained from this study do not reject the hypothesis of monophyly of Sarcocystis species, although the bootstrap data were inconclusive for some species.

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