scholarly journals Integrative redescription of Hypsibius pallidoides Pilato et al., 2011 (Eutardigrada: Hypsibioidea) with the erection of a new genus and discussion on the phylogeny of Hypsibiidae

2020 ◽  
Author(s):  
Denis V. Tumanov
Keyword(s):  
New Genus ◽  
Phylogenetic Analyses ◽  
Molecular Taxonomy ◽  
Morphological Characters ◽  
High Quality ◽  
Pharyngeal Apparatus ◽  
New Material ◽  
Morphological Diagnosis ◽  
Egg Shell ◽  
Shell Sculpture

An integrative redescription of Hypsibius pallidoides Pilato, Kiosya, Lisi, Inshina & Biserov, 2011 was undertaken following a reexamination of the type material and new material using high-quality light microscopy, scanning electron microscopy and methods of molecular taxonomy. Detailed morphological investigations revealed a unique complex of characters that precluded the attribution of this species to the genus Hypsibius Ehrenberg, 1848. Furthermore, phylogenetic analyses indicated the affinity of this species within the subfamily Pilatobiinae (Hypsibiidae). Notahypsibius gen. nov. is erected for H. pallidoides and two putatively related species: H. scaber Maucci, 1987 and Ramazzottius arcticus (Murray, 1907). An emended diagnosis for the genus Pilatobius is given, while the subfamily Pilatobiinae lacks a cohesive morphological diagnosis despite representing, at the same time, a well-supported molecular clade. Obvious controversy between the results of the morphological and molecular analyses of the phylogeny of Hypsibioidea is discussed. The distribution of morphological characters such as the claw type, organization of the bucco-pharyngeal apparatus, and egg shell sculpture type within Eutardigrada is analyzed and their phylogenetic significance discussed.

scholarly journals Complete mitochondrial genome sequence of Labriocimbex sinicus, a new genus and new species of Cimbicidae (Hymenoptera) from China

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7853 ◽  
Author(s):  
Yuchen Yan ◽  
Gengyun Niu ◽  
Yaoyao Zhang ◽  
Qianying Ren ◽  
Shiyu Du ◽  
...  
Keyword(s):  
Mitochondrial Genome ◽  
New Genus ◽  
High Throughput Sequencing ◽  
Phylogenetic Analyses ◽  
Complete Mitochondrial Genome ◽  
Sister Group ◽  
Morphological Characters ◽  
Trna Genes ◽  
Sequencing Data ◽  
Link Type

Labriocimbex sinicus Yan & Wei gen. et sp. nov. of Cimbicidae is described. The new genus is similar to Praia Andre and Trichiosoma Leach. A key to extant Holarctic genera of Cimbicinae is provided. To identify the phylogenetic placement of Cimbicidae, the mitochondrial genome of L. sinicus was annotated and characterized using high-throughput sequencing data. The complete mitochondrial genome of L. sinicus was obtained with a length of 15,405 bp (GenBank: MH136623; SRA: SRR8270383) and a typical set of 37 genes (22 tRNAs, 13 PCGs, and two rRNAs). The results demonstrated that all PCGs were initiated by ATN codon, and ended with TAA or T stop codons. The study reveals that all tRNA genes have a typical clover-leaf secondary structure, except for trnS1. Remarkably, the secondary structures of the rrnS and rrnL of L. sinicus were much different from those of Corynis lateralis. Phylogenetic analyses verified the monophyly and positions of the three Cimbicidae species within the superfamily Tenthredinoidea and demonstrated a relationship as (Tenthredinidae + Cimbicidae) + (Argidae + Pergidae) with strong nodal supports. Furthermore, we found that the generic relationships of Cimbicidae revealed by the phylogenetic analyses based on COI genes agree quite closely with the systematic arrangement of the genera based on the morphological characters. Phylogenetic tree based on two methods shows that L. sinicus is the sister group of Praia with high support values. We suggest that Labriocimbex belongs to the tribe Trichiosomini of Cimbicinae based on adult morphology and molecular data. Besides, we suggest to promote the subgenus Asitrichiosoma to be a valid genus.

An evaluation of the genus Kincaidiana Altman, 1936, with the designation of Altmanella n. gen. (Annelida, Clitellata, Lumbriculidae)

Zootaxa ◽  
2009 ◽  
Vol 2077 (1) ◽  
pp. 1-30 ◽  
Author(s):  
STEVEN V. FEND
Keyword(s):  
North America ◽  
Large Scale ◽  
New Genus ◽  
Pacific Coast ◽  
Morphological Characters ◽  
Reproductive Organs ◽  
Regional Patterns ◽  
Reproductive Structures ◽  
New Material ◽  
Morphological Differences

A review of morphological characters for the western Nearctic genus Kincaidiana indicated that the two described species should be assigned to separate genera. Kincaidiana freidris Cook was transferred to a new genus, Altmanella. New material resembling A. freidris was obtained from many sites throughout western North America. Morphology of the male reproductive structures varied among populations, and the most distinctive morphological differences were accounted for by splitting the taxon into two species, which roughly corresponded to large scale regional patterns. Typical A. freidris occurred in several Pacific Coast drainages. Altmanella idahoensis n. sp., mostly associated with the Snake River drainage, was distinguished from A. freidris by shorter and less muscular atria and penial structures. A second new lumbriculid species with the same basic arrangement of reproductive organs was collected in southeastern North America, and was provisionally assigned to Altmanella. However, in contrast to the petiolate atria and large penial structures of A. freidris and A. idahoensis, Altmanella lenati n. sp. has tubular atria and simple male porophores.

Taxonomic revision and phylogeny of the ant genus Prenolepis (Hymenoptera: Formicidae)

Zootaxa ◽  
2016 ◽  
Vol 4200 (2) ◽  
pp. 201 ◽  
Author(s):  
JASON L. WILLIAMS ◽  
JOHN S. LAPOLLA
Keyword(s):  
Phylogenetic Analyses ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
New Combination ◽  
New Combinations ◽  
Extant Species ◽  
Morphological Diagnosis ◽  
Taxonomic Changes ◽  
Inference Methods ◽  
Worker Caste

The formicine ant genus Prenolepis is here revised for the first time. Thirteen extant species are recognized of which four are described as new. A key for the worker caste is provided, and the worker of each species is imaged, with males and queens imaged in species where they are known. Worker-based characters were used to construct a species-level phylogeny of Prenolepis. Both maximum parsimony and Bayesian inference methods were used for the phylogenetic analyses. A morphological diagnosis for the genus is provided, with a discussion of useful morphological characters for separating Prenolepis from other genera in the Prenolepis genus-group. Major taxonomic changes are proposed. The new species are: P. darlena, P. fustinoda, P. mediops, and P. shanialena. Prenolepis jerdoni subopaca is elevated to full species. Three species are excluded from Prenolepis and transferred to Nylanderia and Paratrechina as new combinations: N. emmae, N. flaviabdominis, and P. umbra. Two species are excluded from Paratrechina and transferred to Nylanderia and Paraparatrechina as new combinations: N. guanyin and P. kongming. One species, Z. darlingtoni, is excluded from Nylanderia and transferred to Zatania as a new combination. Several synonyms are proposed: Prenolepis sphingthoraxa = Nylanderia flaviabdominis; P. imparis arizonica, P. imparis colimana, P. imparis coloradensis, and P. imparis veracruzensis = P. imparis; P. melanogaster carinifrons and P. nigriflagella = P. melanogaster; P. longiventris and P. magnocula = P. naoroji; and P. septemdenta = Nylanderia opisopthalmia. 

scholarly journals A striking new genus and species of cave-dwelling frog (Amphibia: Anura: Microhylidae: Asterophryinae) from Thailand

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4422 ◽  
Author(s):  
Chatmongkon Suwannapoom ◽  
Montri Sumontha ◽  
Jitthep Tunprasert ◽  
Thiti Ruangsuwan ◽  
Parinya Pawangkhanant ◽  
...  
Keyword(s):  
New Genus ◽  
Phylogenetic Analyses ◽  
Sequence Divergence ◽  
Morphological Characters ◽  
Morphological Characterization ◽  
12S Rrna ◽  
New Taxon ◽  
Ecological Specialization ◽  
Limestone Cave ◽  
Mtdna Sequence

We report on a discovery ofSiamophryne troglodytesGen. et sp. nov.,a new troglophilous genus and species of microhylid frog from a limestone cave in the tropical forests of western Thailand. To assess its phylogenetic relationships we studied the 12S rRNA–16S rRNA mtDNA fragment with final alignment comprising up to 2,591 bp for 56 microhylid species. Morphological characterization of the new genus is based on examination of external morphology and analysis of osteological characteristics using microCT-scanning. Phylogenetic analyses place the new genus into the mainly Australasian subfamily Asterophryinae as a sister taxon to the genusGastrophrynoides, the only member of the subfamily known from Sundaland. The new genus markedly differs from all other Asterophryinae members by a number of diagnostic morphological characters and demonstrates significant mtDNA sequence divergence. We provide a preliminary description of a tadpole of the new genus. Thus, it represents the only asterophryine taxon with documented free-living larval stage and troglophilous life style. Our work demonstrates thatS. troglodytesGen. et sp. nov.represents an old lineage of the initial radiation of Asterophryinae which took place in the mainland Southeast Asia. Our results strongly support the “out of Indo-Eurasia” biogeographic scenario for this group of frogs. To date, the new frog is only known from a single limestone cave system in Sai Yok District of Kanchanaburi Province of Thailand; its habitat is affected by illegal bat guano mining and other human activities. As such,S. troglodytesGen. et sp. nov.is likely to be at high risk of habitat loss. Considering high ecological specialization and a small known range of the new taxon, we propose a IUCN Red List status of endangered for it.

scholarly journals Morpho-molecular diversity of Linocarpaceae (Chaetosphaeriales): Claviformispora gen. nov. from decaying branches of Phyllostachys heteroclada

MycoKeys ◽  
2020 ◽  
Vol 69 ◽  
pp. 113-129
Author(s):  
Xiu-Lan Xu ◽  
Chun-Lin Yang ◽  
Rajesh Jeewon ◽  
Dhanushka N. Wanasinghe ◽  
Ying-Gao Liu ◽  
...  
Keyword(s):  
Bayesian Inference ◽  
Maximum Likelihood ◽  
Molecular Diversity ◽  
New Genus ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
New Taxon ◽  
Dna Sequence Data ◽  
Distinct Genus

In this paper, Claviformisporagen. nov. in Linocarpaceae is introduced from Phyllostachys heteroclada in Sichuan Province, China. The new genus is characterised by its distinct morphological characters, such as ostiole with periphyses, asci with a thick doughnut-shaped, J- apical ring and clavate ascospore without septum-like band and appendage. Maximum Likelihood and Bayesian Inference phylogenetic analyses, based on DNA sequence data from ITS, LSU, SSU and TEF-1α regions, provide further evidence that the fungus is a distinct genus within this family. The new genus is compared with similar genera, such as Linocarpon and Neolinocarpon. Descriptions, illustrations and notes are provided for the new taxon.

New epiphytic sooty molds: Alloscorias syngonii (Readerielliopsidaceae) from Thailand

Phytotaxa ◽  
2021 ◽  
Vol 507 (4) ◽  
Author(s):  
SUKANYA HAITUK ◽  
NAKARIN SUWANNARACH ◽  
SINANG HONGSANAN ◽  
CHANOKNED SENWANNA ◽  
RATCHADAWAN CHEEWANGKOON
Keyword(s):  
New Genus ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Distinct Genus

A novel taxon was found as epiphytic sooty molds on Syngonium podophyllum from Thailand. A new genus, Alloscorias gen. nov. is established to accommodate a novel taxon, named A. syngonii. The morphological characters of the species are observed in culture. Phylogenetic analyses of a combined dataset of LSU, ITS, TEF-1α and RPB2 sequence data together with morphological support that Alloscorias is a distinct genus within Readerielliopsidaceae (Capnodiales). Detailed descriptions and illustrations are provided in this paper.

Cucurbitinus gen. nov. (Halosphaeriaceae, Microascales), a new genus to accommodate Cucurbitinus constrictus comb. nov. and Cucurbitinus ibericus comb. nov.

Phytotaxa ◽  
2020 ◽  
Vol 455 (2) ◽  
pp. 119-136
Author(s):  
LING-LING LIU ◽  
NINGGUO LIU ◽  
JING YANG ◽  
YAYA CHEN ◽  
ZUOYI LIU
Keyword(s):  
New Taxa ◽  
New Genus ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Data ◽  
Freshwater Lake ◽  
Guizhou Province

Two strains, representing trichocladium-like species, were collected from a freshwater lake in Guizhou Province, China. Based on the morphological characters, they were well identified as Trichocladium constrictum who lacked molecular data. In the phylogenetic analyses of combined LSU, ITS and SSU sequence data, the collections cluster together with Cirrenalia iberica within Halosphaeriaceae but formed a distinct clade to the type of Cirrenalia (Halosphaeriaceae) and Trichocladium (Chaetomiaceae). The significant long conidiophores of Trichocladium constrictum differ from those of other Trichocladium species. The straight conidia of Cirrenalia iberica is distinguished from curved conidia of other Cirrenalia species. In line with the morphological characters and phylogenetic analyses, Cucurbitinus gen. nov. is proposed to accommodate Trichocladium constrictum and Cirrenalia iberica as Cucurbitinus constrictus comb. nov. and Cucurbitinus ibericus comb. nov. Descriptions and illustrations of the new taxa are provided with discussion of the reclassification.

Parasites (Isopoda: Epicaridea and Nematoda) from ghost and mud shrimp (Decapoda: Axiidea and Gebiidea) with descriptions of a new genus and a new species of bopyrid isopod and clarification of Pseudione Kossmann, 1881

Zootaxa ◽  
2017 ◽  
Vol 4365 (3) ◽  
pp. 251 ◽  
Author(s):  
CHRISTOPHER B. BOYKO ◽  
JASON D. WILLIAMS ◽  
JEFFREY D. SHIELDS
Keyword(s):  
New Species ◽  
New Genus ◽  
Morphological Characters ◽  
Museum Specimens ◽  
Undescribed Species ◽  
High Prevalence ◽  
New Material ◽  
Host Ecology ◽  
Mud Shrimp ◽  
A New Species

Ghost and mud shrimps in Axiidea and Gebiidea are hosts to parasitic epicaridean isopods, including species in Bopyridae and Ionidae. These isopods can reach high prevalence levels on their mud shrimp hosts and may strongly influence host ecology and biology. Currently, 54 species of bopyrids and eight species of ionids are known to parasitize ghost and mud shrimps. We present new taxonomic data on three species of ionids and ten species of bopyrids (nine previously described and one new to science), as well as on an undescribed species of nematode from an axiidean host. New locality and host records are given for all species. Our analysis of new material and review of museum specimens includes the description of the new species Acrobelione halimedae n. sp. from Austinogebia spinfrons (Haswell, 1881). We also provide an improved definition for the genus Pseudione Kossmann, 1881, based on morphological characters found in both sexes, and resolution of the type species, P. callianassae Kossmann, 1881. In our revision of Pseudione we erect a new genus, Robinione, and placed two species therein: R. overstreeti (Adkison & Heard, 1995) and R. brattstroemi (Stuardo, Vega & Cespedes, 1986). In addition, two other species are removed from Pseudione: P. compressa (Shiino, 1964) is moved to Ionella Bonnier, 1900, and P. panopei Pearse, 1947 is considered a synonym of Progebiophilus upogebiae (Hay, 1917). Bopyrid isopods represent a large, diverse taxon and our findings help clarify the taxonomy of those species found on ghost and mud shrimps. 

scholarly journals Integrative taxonomy of the new millipede genus Coxobolellus, gen. nov. (Diplopoda : Spirobolida : Pseudospirobolellidae), with descriptions of ten new species

2020 ◽  
Author(s):  
Piyatida Pimvichai ◽  
Henrik Enghoff ◽  
Somsak Panha ◽  
Thierry Backeljau
Keyword(s):  
New Species ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Mitochondrial Gene ◽  
Sequence Divergence ◽  
Morphological Characters ◽  
Integrative Taxonomy ◽  
Morphological Data ◽  
Morphological Evidence ◽  
Morphological Differences

Pseudospirobolellidae is a poorly known family of spirobolidan millipedes with only two genera and five described species. Yet, the descriptive taxonomy and molecular systematics of this group have been largely neglected. Therefore, the present work presents an integrative taxonomic study of new pseudospirobolellid taxa in Thailand. To this end, two mitochondrial gene fragments (COI and 16S rRNA) combined with morphological characters were used to define the genus Coxobolellus, gen. nov. with 10 new species, viz. C. albiceps, sp. nov., C. compactogonus, sp. nov., C. fuscus, sp. nov., C. nodosus, sp. nov., C. serratus, sp. nov., C. simplex, sp. nov., C. tenebris, sp. nov., C. tigris, sp. nov., C. transversalis, sp. nov. and C. valvatus, sp. nov. The interspecific COI sequence divergences among the new species ranged from 6 to 15%. The intergeneric COI sequence divergence between species of Coxobolellus, gen. nov., Benoitolus birgitae and Pseudospirobolellus sp. ranged from 20 to 23%. Three major morphological differences separate Coxobolellus, gen. nov. from Benoitolus and Pseudospirobolellus, namely (1) the protruding process on the 3rd (and 4th) coxae on male legs, (2) the posterior gonopod telopodite divided into two parts, and (3) a conspicuous opening pore at the mesal margin at the end of the coxal part of the posterior gonopod. Thus, the new genus is well supported by both mtDNA and morphological evidence, while the delimitation of the 10 new species is supported by the congruence between mtDNA and morphological data. Yet, with respect to the relationships of Benoitolus birgitae, morphological data suggest a similarity with Coxobolellus, gen. nov. and Pseudospirobolellus, whereas mtDNA data place this species in the Pachybolidae. Further phylogenetic analyses are needed to explore this apparent incongruence and test the monophyly of Pseudospirobolellidae.

scholarly journals Ligninsphaeria jonesii gen. et. sp. nov., a remarkable bamboo inhabiting ascomycete

Phytotaxa ◽  
2016 ◽  
Vol 247 (2) ◽  
pp. 109 ◽  
Author(s):  
JIN-FENG ZHANG ◽  
JIAN-KUI LIU ◽  
KEVIN D. HYDE ◽  
YONG-XIANG LIU ◽  
ALI H. BAHKALI ◽  
...  
Keyword(s):  
New Genus ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Molecular Evidence ◽  
New Taxon ◽  
Monophyletic Clade ◽  
Incertae Sedis ◽  
Distinct Lineage

A new ascomycete species, inhabiting decaying bamboo culms, is introduced in this paper based on morphology and molecular evidence. Analyses of partial LSU sequence data place the taxon in a monophyletic clade within the order Pleosporales. Morphological characters of the taxon are also distinct from other members of Pleosporales. Ligninsphaeria jonesii gen. et sp. nov. is therefore introduced to accommodate the new taxon, which is characterized by its clypeate, scattered, deeply immersed ascomata, with a slit-like opening, long ostioles, cellular pseudoparaphyses, clavate asci containing broad-fusiform and 1-septate ascospores surrounded by a gelatinous cap at both ends. The phylogenetic analyses show that the new taxon is phylogenetically close but distinct from the families Amniculicolaceae and Testudinaceae, and forms a distinct clade from other taxa in Pleosporales. The new taxon is described and compared with similar taxa. A new genus Ligninsphaeria (Pleosporales, incertae sedis) is introduced to accommodate this distinct lineage.

Sign in / Sign up

Export Citation Format

Share Document