Trichonympha burlesquei n. sp. from Reticulitermes virginicus and evidence against a cosmopolitan distribution of Trichonympha agilis in many termite hosts

2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3873-3876 ◽  
Author(s):  
Erick R. James ◽  
Vera Tai ◽  
Rudolf H. Scheffrahn ◽  
Patrick J. Keeling
Keyword(s):  
Phylogenetic Analysis ◽  
Single Cell ◽  
Host Species ◽  
Molecular Diversity ◽  
Novel Species ◽  
Reticulitermes Flavipes ◽  
Cosmopolitan Distribution ◽  
Type Host ◽  
Reticulitermes Virginicus ◽  
Molecular Phylogenetic

Historically, symbiotic protists in termite hindguts have been considered to be the same species if they are morphologically similar, even if they are found in different host species. For example, the first-described hindgut and hypermastigote parabasalian, Trichonympha agilis (Leidy, 1877) has since been documented in six species of Reticulitermes, in addition to the original discovery in Reticulitermes flavipes. Here we revisit one of these, Reticulitermes virginicus, using molecular phylogenetic analysis from single-cell isolates and show that the Trichonympha in R. virginicus is distinct from isolates in the type host and describe this novel species as Trichonympha burlesque i n. sp. We also show the molecular diversity of Trichonympha from the type host R. flavipes is greater than supposed, itself probably representing more than one species. All of this is consistent with recent data suggesting a major underestimate of termite symbiont diversity.

scholarly journals New Intranuclear Symbiotic Bacteria from Macronucleus of Paramecium putrinum—“Candidatus Gortzia Yakutica”

Diversity ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 198 ◽  
Author(s):  
Alexandra Y. Beliavskaia ◽  
Alexander V. Predeus ◽  
Sofya K. Garushyants ◽  
Maria D. Logacheva ◽  
Jun Gong ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Life Cycle ◽  
Host Species ◽  
Novel Species ◽  
Symbiotic Bacteria ◽  
Rrna Gene ◽  
Ssu Rrna ◽  
Ssu Rrna Gene ◽  
Obligate Intracellular

Holospora-like bacteria (HLB) are obligate intracellular Alphaproteobacteria, inhabiting nuclei of Paramecium and other ciliates such as “Candidatus Hafkinia” is in Frontonia. The HLB clade is comprised of four genera, Holospora, Preeria, “Candidatus Gortzia”, and “Candidatus Hafkinia”. These bacteria have a peculiar life cycle with two morphological forms and some degree of specificity to the host species and the type of nucleus they inhabit. Here we describe a novel species of HLB—“Candidatus Gortzia yakutica” sp. nov.—a symbiont from the macronucleus of Paramecium putrinum, the first described HLB for this Paramecium species. The new endosymbiont shows morphological similarities with other HLB. The phylogenetic analysis of the SSU rRNA gene places it into the “Candidatus Gortzia” clade.

scholarly journals Proposal of Mingxiaea gen. nov. for the anamorphic basidiomycetous yeast species in the Bulleribasidium clade (Tremellales) based on molecular phylogenetic analysis, with six new combinations and four novel species

2011 ◽  
Vol 61 (1) ◽  
pp. 210-219 ◽  
Author(s):  
Qi-Ming Wang ◽  
Feng-Yan Bai ◽  
Bundit Fungsin ◽  
Teun Boekhout ◽  
Takashi Nakase
Keyword(s):  
Phylogenetic Analysis ◽  
Type Strain ◽  
Yeast Species ◽  
Novel Species ◽  
Southern China ◽  
Basidiomycetous Yeast ◽  
Molecular Phylogenetic Analysis ◽  
Rrna Gene ◽  
New Combinations ◽  
Molecular Phylogenetic

The distinction and monophyletic property of the basidiomycetous yeast species in the Bulleribasidium clade of the order Tremellales was resolved by molecular phylogenetic analysis based on the combined sequences of the 18S rRNA gene, internal transcribed spacer (ITS) region including 5.8S rRNA gene and 26S rRNA gene D1/D2 domain. The addition to the clade of new anamorphic species identified among ballistoconidium-forming yeasts isolated from China confirmed and strengthened the separation of this clade from other clades or lineages in the order Tremellales. A new anamorphic genus, Mingxiaea gen. nov. (type species Mingxiaea variabilis comb. nov.) is therefore proposed to accommodate the anamorphic species in the Bulleribasidium clade. Six new combinations are proposed for the described species of this clade which were formerly assigned to the genus Bullera. Four novel species in the new genus were identified among 16 ballistoconidium-forming yeast strains isolated from plant leaves collected in Hainan province, southern China, by D1/D2 and ITS sequence analyses. The novel species are described as Mingxiaea sanyaensis sp. nov. (type strain SY-3.23T =AS 2. 3623T =CBS 11408T), Mingxiaea hainanensis (type strain WZS-8.13T =AS 2.4161T =CBS 11409T), Mingxiaea foliicola (type strain WZS-8.14T =AS 2.3518T =CBS 11407T) and Mingxiaea wuzhishanensis (type strain WZS-29.8T =AS 2.4163T =CBS 11411T).

scholarly journals Teunia rosae sp. nov. and Teunia rudbeckiae sp. nov. (Cryptococcaceae, Tremellales), two novel basidiomycetous yeast species isolated from flowers

2020 ◽  
Vol 70 (10) ◽  
pp. 5394-5400
Author(s):  
Gui-Shuang Wang ◽  
Yu Zhou ◽  
Lu Xue ◽  
Ai-Hua Li ◽  
Wangmu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Phylogenetic Analysis ◽  
Yeast Species ◽  
Novel Species ◽  
Its Region ◽  
Basidiomycetous Yeast ◽  
Yeast Strains ◽  
Molecular Phylogenetic ◽  
Scanning Electron

Three yeast strains isolated from three flower samples were identified as representing two novel species of Teunia based on molecular phylogenetic analysis and phenotypic comparisons. Strains 12A8 and 21S4 with pink cream colonies and subglobose to globose cells had identical sequences in the ITS and LSU D1/D2 regions, which differed from strain X54 with cream colonies and ovoid to ellipsoidal cells by 6 nt substitutions (1 %) and 9 nt mismatches (1.5 %) in the D1/D2 domains and ITS region, respectively. They could also be distinguished from each other in assimilation of glucitol and salicin, growth at 28 °C and cell fibrillar appendages under scanning electron microscopy. The three strains differed from known species of Teunia by more than 8 nt (1.3 %) and 30 nt (5 %) in the D1/D2 domains and ITS region, respectively. Therefore, the names Teunia rudbeckiae sp. nov. (Holotype CGMCC 2.5840, Mycobank MB 835892) and Teunia rosae sp. nov. (Holotype CGMCC 2.5830, MycoBank MB 835891) are proposed to accommodate strain X54, and strains 12A8 and 21S4, respectively.

Validation of Rhabditolaimus Fuchs, 1914 (Nematoda: Diplogastridae) supported by integrative taxonomic evidence

Nematology ◽  
2012 ◽  
Vol 14 (5) ◽  
pp. 595-604 ◽  
Author(s):  
Vladislav Susoy ◽  
Matthias Herrmann
Keyword(s):  
Phylogenetic Analysis ◽  
Central Europe ◽  
Type Species ◽  
Morphological Characters ◽  
Molecular Phylogenetic Analysis ◽  
New Combinations ◽  
Hylobius Abietis ◽  
Type Host ◽  
Close Relationship ◽  
Molecular Phylogenetic

Rhabditolaimus leuckarti, type species of Rhabditolaimus, was isolated from its type host, Hylobius abietis (Coleoptera: Curculionidae), at several locations in central Europe. The position of the species among other diplogastrid nematodes was revised using morphological characters and molecular phylogenetic analysis. The revealed common apomorphic features and the inferred evolutionary tree strongly indicates a close relationship between R. leuckarti and Myctolaimus. Our findings suggest that the historical classifications do not reflect the natural relationships of some diplogastrid taxa. Therefore, we reject all previous synonymisations of Rhabditolaimus and consider it to be valid within the Diplogastridae. Five species are transferred from Diplogasteroides to Rhabditolaimus. Myctolaimus sensu lato is regarded as a junior synonym of Rhabditolaimus and the following new combinations are proposed: R. anoplophorae comb. n., R. carolinensis comb. n., R. curzii comb. n., R. dendrophilus comb. n., R. erectus comb. n., R. goodeyi comb. n., R. inevectus, comb. n., R. kishtwarensis comb. n., R. macrolaimus comb. n., R. nacogdochensis comb. n., R. neolongistoma comb. n., R. pellucidus comb. n., R. platypi comb. n., R. rifflei comb. n., R. robiniae comb. n., R. ulmi comb. n., R. vitautasi comb. n., R. walkeri comb. n. and R. zamithi comb. n.

Pilostyles maya, a novel species from Mexico and the first cleistogamous species in Apodanthaceae (Cucurbitales)

Phytotaxa ◽  
2020 ◽  
Vol 440 (4) ◽  
pp. 255-267
Author(s):  
PACTLI F. ORTEGA-GONZÁLEZ ◽  
SANDRA RIOS-CARRASCO ◽  
CÉSAR ADRIÁN GONZÁLEZ-MARTÍNEZ ◽  
NATALIA BONILLA-CRUZ ◽  
SONIA VÁZQUEZ-SANTANA
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Novel Species ◽  
Critically Endangered ◽  
Molecular Phylogenetic Analysis ◽  
Morphological Evidence ◽  
Species Status ◽  
New Mexican ◽  
Molecular Phylogenetic ◽  
Mexican Species

Pilostyles maya (Apodanthaceae), a new Mexican species endemic to the Yucatán Peninsula, is described and illustrated. Ecological, geographical, molecular, and morphological evidence are provided to support the new species status of Pilostyles maya. A molecular phylogenetic analysis based on the mitochondrial matR and nuclear 18S genes recovered P. maya as sister to P. mexicana. It is distinguished from its congeners by having cleistogamous, hermaphroditic flowers, tepals with ciliate margins and specificity on a Bauhinia host. These traits are novel for the genus and family. We propose that P. maya be listed as Critically Endangered due to its small known area of distribution and threats from deforestation in its area of occurrence.

scholarly journals Molecular Phylogenetic Analysis of the AIG Family in Vertebrates

Genes ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 1190
Author(s):  
Yuqi Huang ◽  
Minghao Sun ◽  
Lenan Zhuang ◽  
Jin He
Keyword(s):  
Phylogenetic Analysis ◽  
Gene Family ◽  
Functional Characterization ◽  
Vertebrate Evolution ◽  
Molecular Phylogenetic Analysis ◽  
Whole Genome Duplications ◽  
Genome Duplications ◽  
Molecular Phylogenetic ◽  
Duplication Events ◽  
Inducible Genes

Androgen-inducible genes (AIGs), which can be regulated by androgen level, constitute a group of genes characterized by the presence of the AIG/FAR-17a domain in its protein sequence. Previous studies on AIGs demonstrated that one member of the gene family, AIG1, is involved in many biological processes in cancer cell lines and that ADTRP is associated with cardiovascular diseases. It has been shown that the numbers of AIG paralogs in humans, mice, and zebrafish are 2, 2, and 3, respectively, indicating possible gene duplication events during vertebrate evolution. Therefore, classifying subgroups of AIGs and identifying the homologs of each AIG member are important to characterize this novel gene family further. In this study, vertebrate AIGs were phylogenetically grouped into three major clades, ADTRP, AIG1, and AIG-L, with AIG-L also evident in an outgroup consisting of invertebrsate species. In this case, AIG-L, as the ancestral AIG, gave rise to ADTRP and AIG1 after two rounds of whole-genome duplications during vertebrate evolution. Then, the AIG family, which was exposed to purifying forces during evolution, lost or gained some of its members in some species. For example, in eutherians, Neognathae, and Percomorphaceae, AIG-L was lost; in contrast, Salmonidae and Cyprinidae acquired additional AIG copies. In conclusion, this study provides a comprehensive molecular phylogenetic analysis of vertebrate AIGs, which can be employed for future functional characterization of AIGs.

scholarly journals Single-cell transcriptomic analysis of the adult mouse spinal cord reveals molecular diversity of autonomic and skeletal motor neurons

2021 ◽  
Vol 24 (4) ◽  
pp. 572-583 ◽  
Author(s):  
Jacob A. Blum ◽  
Sandy Klemm ◽  
Jennifer L. Shadrach ◽  
Kevin A. Guttenplan ◽  
Lisa Nakayama ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Single Cell ◽  
Motor Neurons ◽  
Molecular Diversity ◽  
Adult Mouse ◽  
Transcriptomic Analysis ◽  
Mouse Spinal Cord

A REVISED GENERIC SYNOPSIS OF HYACINTHACEAE IN SUB-SAHARAN AFRICA, BASED ON MOLECULAR EVIDENCE, INCLUDING NEW COMBINATIONS AND THE NEW TRIBE PSEUDOPROSPEREAE

2003 ◽  
Vol 60 (3) ◽  
pp. 533-568 ◽  
Author(s):  
J. C. MANNING ◽  
P. GOLDBLATT ◽  
M. F. FAY
Keyword(s):  
Phylogenetic Analysis ◽  
Sub Saharan Africa ◽  
Molecular Evidence ◽  
New Combinations ◽  
Generic Level ◽  
The Family ◽  
Molecular Phylogenetic ◽  
Single Genus ◽  
New Tribe ◽  
Sub Saharan

A revised generic synopsis of sub-Saharan Hyacinthaceae is presented, based on a molecular phylogenetic analysis of the family. Generic rank is accorded only to reciprocally monophyletic clades that can be distinguished by recognizable morphological discontinuities, thereby permitting an appropriate generic assignment of species not included in the analysis. Three subfamilies are recognized within the region. Subfamily Ornithogaloideae, characterized by flattened or angular seeds with tightly adhering testa, is considered to include the single genus Ornithogalum, which is expanded to include the genera Albuca, Dipcadi, Galtonia, Neopatersonia and Pseudogaltonia. Recognizing any of these segregates at generic level renders the genus Ornithogalum polyphyletic, while subdivision of Ornithogalum into smaller, morphologically distinguishable segregates in order to preserve the monophyly of each is not possible. Subfamily Urgineoideae, characterized by flattened or winged seeds with brittle, loosely adhering testa, comprises the two mainland African genera Bowiea and Drimia. The latter is well circumscribed by its deciduous, short-lived perianth and includes the previously recognized genera Litanthus, Rhadamanthus, Schizobasis and Tenicroa. The monotypic Madagascan Igidia is provisionally included in the subfamily as a third genus on the basis of its seeds, pending molecular confirmation of its relationships. Subfamily Hyacinthoideae resolves into three clades, distinguished as tribes Hyacintheae (strictly northern hemisphere and not treated further), Massonieae and Pseudoprospereae tribus nov. Full descriptions and a key to their identification are provided for all genera. New combinations reflecting the generic circumscriptions adopted here are made for most African and all Indian and Madagascan species.

scholarly journals Black spicules from a new interstitial opheliid polychaete Thoracophelia minuta sp. nov. (Annelida: Opheliidae)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Naoto Jimi ◽  
Shinta Fujimoto ◽  
Mami Takehara ◽  
Satoshi Imura
Keyword(s):  
Developmental Biology ◽  
Phylogenetic Analysis ◽  
New Species ◽  
Morphological Diversity ◽  
The Body ◽  
Evolutionary Significance ◽  
Research Subject ◽  
Ecological Diversity ◽  
Coelomic Cavity ◽  
Molecular Phylogenetic

AbstractThe phylum Annelida exhibits high morphological diversity coupled with its extensive ecological diversity, and the process of its evolution has been an attractive research subject for many researchers. Its representatives are also extensively studied in fields of ecology and developmental biology and important in many other biology related disciplines. The study of biomineralisation is one of them. Some annelid groups are well known to form calcified tubes but other forms of biomineralisation are also known. Herein, we report a new interstitial annelid species with black spicules, Thoracophelia minuta sp. nov., from Yoichi, Hokkaido, Japan. Spicules are minute calcium carbonate inclusions found across the body and in this new species, numerous black rod-like inclusions of calcium-rich composition are distributed in the coelomic cavity. The new species can be distinguished from other known species of the genus by these conspicuous spicules, shape of branchiae and body formula. Further, the new species’ body size is apparently smaller than its congeners. Based on our molecular phylogenetic analysis using 18S and 28S sequences, we discuss the evolutionary significance of the new species’ spicules and also the species' progenetic origin.

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