scholarly journals Phylogenomic Analyses of the Genus Pseudomonas Lead to the Rearrangement of Several Species and the Definition of New Genera

Biology ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 782
Author(s):  
Zaki Saati-Santamaría ◽  
Ezequiel Peral-Aranega ◽  
Encarna Velázquez ◽  
Raúl Rivas ◽  
Paula García-Fraile
Keyword(s):  
New Species ◽  
New Genera ◽  
Taxonomic Organization ◽  
Bacterial Systematics ◽  
The Creation ◽  
Phylogenomic Analyses ◽  
Definition Of ◽  
Type Strains

Pseudomonas is a large and diverse genus broadly distributed in nature. Its species play relevant roles in the biology of earth and living beings. Because of its ubiquity, the number of new species is continuously increasing although its taxonomic organization remains quite difficult to unravel. Nowadays the use of genomics is routinely employed for the analysis of bacterial systematics. In this work, we aimed to investigate the classification of species of the genus Pseudomonas on the basis of the analyses of the type strains whose genomes are currently available. Based on these analyses, we propose the creation of three new genera (Denitrificimonas gen nov. comb. nov., Neopseudomonas gen nov. comb. nov. and Parapseudomonas gen nov. comb. nov) to encompass several species currently included within the genus Pseudomonas and the reclassification of several species of this genus in already described taxa.

Remarks in the tribe Phlugidini Eichler and recognition of the new taxa from the Indo-Malayan region and east Africa (Grylloptera : Tettigonioidea : Meconematidae)*

1993 ◽  
Vol 7 (6) ◽  
pp. 1589 ◽  
Author(s):  
DKM Kevan ◽  
XB Jin
Keyword(s):  
New Species ◽  
East Africa ◽  
New Taxa ◽  
New Guinea ◽  
New Combination ◽  
New Genera ◽  
Northern Australia ◽  
Definition Of ◽  
Orthopteroid Insects

The tribal status of Phlugidini Eichler, 1938, is confirmed. A new definition of the tribe is suggested and the taxonomic relationships among genera related to the tribe are discussed. Two new genera, nine new species and one new combination are described from East Africa, New Guinea, Northern Australia, Sulawesi and Borneo. These new taxa are Phlugidia africana Kevan, Tenuiphlugis Kevan, Tenuiphlugis gressitti (Chopard, 19691, comb. nov., T. maai Jin, T. brittoni Jin, T. malkini Jin, Phlugis sulawesi Jin, P. borneoensis Jin, P. burgersi Jin, P. novaeguineaensis Jin, P. rapax Jin and P. philippina Jin.*There is more than one system dealing with the higher classification of orthopteroid insects (for detail, see Jago 1977; Kevan 1977; Ragge 1977; Rentz 1977; Vickery 1977). Among them, Rentz (1979), Kevan (1982) and Vickery and Kevan (1986) are the major recent representatives of different opinions. The designation of the Phlugidini in this paper follows the system of Vickery and Kevan (1986).

Three new species, two new genera, and new family Biphragmosagittidae (Сhaetognatha) from Southwest Pacific Ocean

2011 ◽  
Vol 20 (1) ◽  
pp. 161-173
Author(s):  
A.P. Kassatkina
Keyword(s):  
New Species ◽  
Type Species ◽  
Morphological Characters ◽  
The Body ◽  
New Order ◽  
New Genera ◽  
New Family ◽  
The Family ◽  
Three New Species

Resuming published and own data, a revision of classification of Chaetognatha is presented. The family Sagittidae Claus & Grobben, 1905 is given a rank of subclass, Sagittiones, characterised, in particular, by the presence of two pairs of sac-like gelatinous structures or two pairs of fins. Besides the order Aphragmophora Tokioka, 1965, it contains the new order Biphragmosagittiformes ord. nov., which is a unique group of Chaetognatha with an unusual combination of morphological characters: the transverse muscles present in both the trunk and the tail sections of the body; the seminal vesicles simple, without internal complex compartments; the presence of two pairs of lateral fins. The only family assigned to the new order, Biphragmosagittidae fam. nov., contains two genera. Diagnoses of the two new genera, Biphragmosagitta gen. nov. (type species B. tarasovi sp. nov. and B. angusticephala sp. nov.) and Biphragmofastigata gen. nov. (type species B. fastigata sp. nov.), detailed descriptions and pictures of the three new species are presented.

Revision of the genusPionosyllis(Polychaeta: Syllidae: Eusyllinae), with a cladistic analysis, and the description of five new genera and two new species

2009 ◽  
Vol 89 (7) ◽  
pp. 1455-1498 ◽  
Author(s):  
Guillermo San Martín ◽  
Eduardo López ◽  
María Teresa Aguado
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Cladistic Analysis ◽  
New Genera ◽  
Two New Species ◽  
San Martín

PionosyllisMalmgren, 1867 is revised based on a cladistic analysis of the 41 species considered herein as valid, two newly described species in this paper (Basidiosyllis victoriaeandOpisthodonta russelli), 11 species from other genera actually belonging, or related to,Pionosyllis, and 13 syllid species from different subfamilies. The phylogenetic analysis is based on 55 characters; a strict consensus of 1200 equally parsimonious trees (length = 314 steps) was obtained. The clades containing species usually included withinPionosyllisare newly named within the frame of a new Linnean classification of the group (except for one, belonging to another subfamily). The diagnosis ofPionosyllisis emended, and five new genera are proposed:Synmerosyllis,Basidiosyllis,Westheidesyllis,PerkinsyllisandBrevicirrosyllis.ParaehlersiaSan Martín, 2003, proved to be closely related toPionosyllis. Seven species are transferred toOpisthodontaLangerhans, 1879, here emended, and three transferred toNudisyllisKnox & Cameron, 1970 (according to San Martín & Hutchings, 2006).Opisthodonta uraga(Imajima, 1966) comb. nov. andPerkinsyllis longisetosacomb. nov. are redescribed.Pionosyllis compactaMalmgren, 1867,P. styliferaEhlers, 1913,P. giganteaMoore, 1908,P. enigmatica(Wesenberg-Lund, 1950), andNudisyllis magnidens(Day, 1953) comb. nov., are redescribed.Pionosyllis marquesensisMonro, 1939 andP. proceraHartman, 1965 likely belong to the Syllinae, thus they are not treated in the taxonomic account.

A reassessment of the genus Haeckeria (Asteraceae: Gnaphalieae), with definition of new species in Cassinia

2004 ◽  
Vol 17 (5) ◽  
pp. 447 ◽  
Author(s):  
A. E. Orchard
Keyword(s):  
New Species ◽  
Leaf Anatomy ◽  
Related Species ◽  
Closely Related Species ◽  
Definition Of

Variation in the species hitherto known as Haeckeria ozothamnoides F.Muell. is discussed. This taxon has well-developed paleae between the florets, and many collections show development of a pappus. These characters, along with others such as leaf anatomy and morphology, strongly distinguish H. ozothamnoides s. lat. from Haeckeria s. str. and place it in Cassinia. The taxon is also shown to comprise three closely related species, which are here described as Cassinia ozothamnoides (F.Muell.) Orchard, comb. nov., C.�scabrida Orchard, sp. nov. and C.�venusta Orchard, sp. nov. The history, taxonomy, relationships and classification of Haeckeria is reviewed, and the genus and its two remaining species, H.�cassiniiformis and H.�punctulata, are described. All five species are illustrated and their distributions mapped.

Studies on the Family Opisthorchiidaæ Braun, 1901, with a description of a New Species of Opisthorchis from a Sarus Crane (Antigone antigone)

1927 ◽  
Vol 5 (2) ◽  
pp. 89-104 ◽  
Author(s):  
D. O. Morgan
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Systematic Position ◽  
Minor Importance ◽  
New Genera ◽  
The Past ◽  
The Family ◽  
A New Species

The classification of the Trematode family Opisthorchiidæ presents some difficulties to the systematist. These difficulties arise partly from the fact that a number of the existing species appear to lack any real morphological characters by which they can be differentiated, slight variations in measurements, together with a difference in host, having been considered sufficient to justify the making of new species. This view has resulted in the placing of undue importance on somewhat minor differences when they do occur in other species, such differences being considered sufficient for creating new genera.The systematist is further confronted with the difficulty of forming definite opinions on the systematic position of some of the species made by earlier workers. Their descriptions and figures are often inadequate owing to the fact that characters which, in the past, were considered of minor importance are now given much closer attention. Examples of the confusion which has arisen from such a position will be referred to in this paper.

New genera of Veliidae (Hemiptera : Heteroptera) from Australia, with notes on the generic classification of the subfamily Microveliinae

2001 ◽  
Vol 15 (2) ◽  
pp. 217 ◽  
Author(s):  
Nils Møller Andersen ◽  
Tom A. Weir
Keyword(s):  
New Species ◽  
New Genera ◽  
The Past ◽  
Water Striders ◽  
The World ◽  
Water Surfaces

Water striders and their allies (Hemiptera, Gerromorpha) are familiarinhabitants of water surfaces throughout the world. One of the mostspecies-rich groups is the subfamily Microveliinae (Veliidae) that comprisessmall or very small bugs inhabiting the nearshore areas of stagnant orslow-flowing freshwater. Accumulation of material during the past 30 years hasshown that the Australian fauna of Microveliinae is much richer and morediverse than previously recognised. In the present paper we discuss thegeneric classification of the subfamily and describe three new genera forspecies previously classified in the genus MicroveliaWestwood as well as three other new genera and nine new species. The new taxaare: Drepanovelia, gen. nov. (type-species:Microvelia dubia Hale),D. millennium (NSW, Queensland),D. biceros (NSW), and D. nielseni(Queensland) spp. nov., Lacertovelia hirsuta, gen. etsp. nov. (NSW), Petrovelia, gen. nov.,P. agilis (Queensland) andP. katherinae (NT) spp. nov.,Nesidovelia, gen. nov. (type species:Microvelia howense Hale),Microvelopsis, gen. nov. (type species:Microvelia melancholica Hale),M. exuberans (Queensland) andM. minor (Queensland) spp. nov.,Tarsoveloides brevitarsus, gen. et sp. nov.(Queensland). We also redescribe and give additional Australian records fortwo species of the genus Phoreticovelia D. Polhemus & J. Polhemus. Keys to adults of all species are provided and theirdistributions mapped.

Tanaidacea (Crustacea) of the Northeast Atlantic: non-filiform species of Anarthruridae Lang from the Atlantic Margin

Zootaxa ◽  
2004 ◽  
Vol 471 (1) ◽  
pp. 1 ◽  
Author(s):  
GRAHAM BIRD
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Cold Water ◽  
New Genera ◽  
The Family ◽  
History Of ◽  
Atlantic Margin ◽  
Group D ◽  
Deep Sea Fauna

Anarthrurid tanaidaceans are common in the bathyal zone west of the British Isles and their identification has been difficult. The complex history of the taxonomy and classification of the Family Anarthruridae Lang is summarised and H.J. Hansen s Leptognathia group d from the Ingolf expeditions is transferred to the Anarthruridae. Three known species are re-described (Anarthrurasimplex, Leptognathia latiremis, and L. glacialis). In addition, five new genera are erected and five new species described. A key to their identification is given. Zoogeographic patterns indicate a cold-water fauna north of the Faeroes and Iceland and a separate Atlantic Deep Sea fauna along the Hebrides-Porcupine-Biscay slope.

A revised chitinozoan classification

1999 ◽  
Vol 73 (4) ◽  
pp. 549-570 ◽  
Author(s):  
Florentin Paris ◽  
Yngve Grahn ◽  
Viiu Nestor ◽  
Iskra Lakova
Keyword(s):  
Electron Microscope ◽  
New Genera ◽  
Basic Information ◽  
Diagnostic Features ◽  
Specific Rank ◽  
Definition Of ◽  
A New Species ◽  
Stratigraphic Range ◽  
Scanning Electron

The successful definition of chitinozoan genera depends primarily on the precision of the criteria used. A standardized morphological terminology based upon details from scanning electron microscope observations of the most representative taxa bearing these characters is therefore proposed. The 143 genera, or subgenera, described so far in the literature are reviewed in order to exclude invalid taxa and obvious junior synonyms. Particular attention is paid to preventing the overlap of generic definitions of the 56 genera ultimately retained. A brief account of the diagnostic features and stratigraphic range of selected genera is given, and basic information concerning the type material of these genera is listed. Finally, a suprageneric classification of the whole Chitinozoa group based on diagnostic features whose hierarchy is established on statistical and evolutionary grounds, is given. One new subfamily, Pogonochitininae, three new genera, Baltochitina, Hyalochitina, and Saharochitina, and a new species Baltochitina nolvaki, are defined. The subspecies Fungochitina fungiformis spinifera is elevated to a specific rank.

A revision of the family Typhlotanaidae Sieg 1984 (Crustacea: Tanaidacea) with the remarks on the Nototanaidae Sieg, 1976

Zootaxa ◽  
2007 ◽  
Vol 1598 (1) ◽  
pp. 1-141 ◽  
Author(s):  
MAGDALENA BŁAŻEWICZ-PASZKOWYCZ
Keyword(s):  
New Species ◽  
New Taxa ◽  
Museum Specimens ◽  
New Genera ◽  
Antarctic Waters ◽  
The Family ◽  
Definition Of

Recent tanaidacean material collected from Antarctic waters, primarily during the ANDEEP expeditions of 2002 and 2005, includes a number of new taxa attributable to the families Nototanaidae and Typhlotanaidae sensu Sieg. Analysis of this material has exposed a problem with the recent contention of the two families, and has revealed consistent morphological trends which support the distinction of these two families. In the present paper, examination of both museum specimens and newly-collected material, has allowed a re-analysis based on a series of detailed morphological observations, resulting in a new definition of the families Typhlotanaidae Sieg, 1984 with the establishment of five new genera (Hamatipeda n. gen., Larsenotanais n. gen., Pulcherella n. gen., Torquella n. gen., Typhlamia n. gen.), a the description of thirteen new species, the redescription of fifteen species, and the construction of keys for the determination of typhlotanaid genera and of the species of three newly-erected genera.

Lichenicolous ascomycetes onSiphula-like lichens, with a key to the species

2019 ◽  
Vol 51 (1) ◽  
pp. 45-73
Author(s):  
Jurga MOTIEJŪNAITĖ ◽  
Mikhail P. ZHURBENKO ◽  
Ave SUIJA ◽  
Gintaras KANTVILAS
Keyword(s):  
South Africa ◽  
Species Richness ◽  
New Species ◽  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
New Genera ◽  
Additional Species ◽  
Lichenicolous Fungi ◽  
Species Being

AbstractSixteen species of lichenicolous fungi are documented fromSiphula-like lichens. Two new genera based on new species are introduced.AmylogallaSuija, Motiej. & Kantvilas, characterized by I+ blue, K/I+ violet vegetative hyphae and ascomatal wall, immersed, cleistohymenial, yellowish to orange ascomata, unitunicate, non-amyloid, 8-spored asci and hyaline, ellipsoid, aseptate ascospores, is described fromParasiphulain Tasmania.SaaniaZhurb., characterized by superficial, stromatic, multilocular ascomata, non-amyloid hymenial gel, persistent periphysoids, bitunicate, non-amyloid, 4(–8)-spored asci and narrowly obovate to ellipsoid, 1(–3)-septate, initially hyaline and smooth-walled, later sometimes brown and verruculose ascospores, is described fromSiphulain South Africa. Four additional species are described as new: two fromSiphula(Cercidospora santessoniiMotiej., Zhurb., Suija & Kantvilas andStigmidium kashiwadaniiZhurb.) and two fromParasiphula(Endococcus hafellnerianusMotiej., Suija & Kantvilas andPyrenidium macrosporumMotiej., Zhurb., Suija & Kantvilas). Additional hosts and/or expanded geographical ranges are reported forAabaarnia siphulicola,Epigloea soleiformis, Plectocarpon gayanumandPyrenidium actinellum. The Southern Hemisphere is the centre of species richness for siphulicolous fungi, with 12 species restricted to this region. Taxa recorded for the Northern Hemisphere areSphaerellothecium siphulae(arctic and boreal) and the subcosmopolitanEpigloea soleiformisandPyrenidium actinellum, both of which are also known from various lichen hosts. The distribution of siphulicolous fungi strongly underpins the current generic classification ofSiphula-like lichens, with five species being confined exclusively toParasiphulaand nine toSiphula. A key to the taxa occurring onSiphulaandParasiphulais provided.

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