Monorchis lewisi n. sp. (Trematoda: Monorchiidae) from the surf bream, Acanthopagrus australis (Sparidae), in Moreton Bay, Australia

2017 ◽  
Vol 92 (1) ◽  
pp. 100-108 ◽  
Author(s):  
T.H. Cribb ◽  
N.Q.-X. Wee ◽  
R.A. Bray ◽  
S.C. Cutmore
Keyword(s):  
Sequence Data ◽  
28S Rdna ◽  
Excretory Vesicle ◽  
Relative Configuration ◽  
Moreton Bay ◽  
Eastern Australia ◽  
The Family ◽  
Rdna Sequence Data ◽  
Second Internal Transcribed Spacer ◽  
28S Rdna Sequence

AbstractWe describe Monorchis lewisi n. sp. (Monorchiidae) from the surf bream, Acanthopagrus australis (Günther, 1859) (Sparidae), in Moreton Bay, eastern Australia. The new species differs from most existing species of Monorchis Monticelli, 1893 in its possession of an elongate I-shaped excretory vesicle, and from other congeners in the relative configuration of the gut and suckers. Ovipusillus mayu Dove & Cribb, 1998 is re-reported from Gnathanodon speciosus (Forsskål, 1775) (Carangidae) from Moreton Bay. We report new second internal transcribed spacer (ITS2) and 28S rDNA sequence data for both species. Bayesian inference and Maximum Likelihood analyses of the 28S rDNA dataset suggest that existing subfamily and genus concepts within the family require substantial revision.

A new genus of Lysitermini (Hymenoptera: Braconidae: Lysiterminae) from Madagascar and its taxonomic placement based on 28S rDNA sequence data

Zootaxa ◽  
2007 ◽  
Vol 1461 (1) ◽  
pp. 25-37 ◽  
Author(s):  
SERGEY A. BELOKOBYLSKIJ ◽  
ALEJANDRO ZALDIVAR-RIVERÓN ◽  
VIRGINIA LEÓN-REGAGNON ◽  
DONALD L.J. QUICKE
Keyword(s):  
Phylogenetic Analysis ◽  
New Genus ◽  
Sequence Data ◽  
Rdna Sequence ◽  
28S Rdna ◽  
Gene Sequences ◽  
New Genus And Species ◽  
Rdna Gene ◽  
Rdna Sequence Data ◽  
28S Rdna Sequence

A new genus and species of Lysitermini, Atritermus pedestris Belokobylskij, Zaldivar-Riverón & Quicke, are described from Madagascar. The taxonomic placement of the new genus within Lysiterminae is discussed based on a phylogenetic analysis using 28S rDNA gene sequences. A key to world genera of Lysitermini is provided.Un nuevo género y especie de Lysitermini, Atritermus pedestris Belokobylskij, Zaldivar-Riverón & Quicke, son descritos para Madagascar. La ubicación taxonómica del nuevo género dentro de Lysiterminae es discutida con base en un análisis filogenético usando secuencias del gen ribosomal 28S. Se presenta una clave para los géneros de Lysitermini del mundo.

scholarly journals Ravenelia piepenbringiae and Ravenelia hernandezii, two new rust species on Senegalia (Fabaceae, Mimosoideae) from Panama and Costa Rica

MycoKeys ◽  
2018 ◽  
Vol 41 ◽  
pp. 51-63 ◽  
Author(s):  
M. Ebinghaus ◽  
D. Begerow
Keyword(s):  
South Africa ◽  
Costa Rica ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Rdna Sequence ◽  
28S Rdna ◽  
Host Genus ◽  
Rdna Sequence Data ◽  
Molecular Phylogenetic ◽  
28S Rdna Sequence

Two new rust species, Raveneliapiepenbringiae and R.hernandezii (Pucciniales) on Senegalia spp. (Fabaceae) are described from the Neotropics (Panama, Costa Rica). A key to the species on neotropical Senegalia spp. is provided. Molecular phylogenetic analyses based on 28S rDNA sequence data suggest that the representatives of Senegalia rusts distributed in the neotropics evolved independently from species known from South Africa. This is further supported by the teliospore morphology, which is characterised by uniseriate cysts in the neotropical Senegalia rusts and contrasting multiseriate cysts in the paleotropic Ravenelia species that infect this host genus.

A synopsis and re-circumscription of Neurospora (syn. Gelasinospora) based on ultrastructural and 28S rDNA sequence data

2004 ◽  
Vol 108 (10) ◽  
pp. 1119-1142 ◽  
Author(s):  
Dania García ◽  
Alberto M. Stchigel ◽  
José Cano ◽  
Josep Guarro ◽  
David L. Hawksworth
Keyword(s):  
Sequence Data ◽  
Rdna Sequence ◽  
28S Rdna ◽  
Rdna Sequence Data ◽  
28S Rdna Sequence

scholarly journals Redescription, Morphogenesis, and Molecular Phylogeny of Pseudosincirra longicirrata nov. comb., With Establishment of a New Genus Pseudosincirra nov. gen. (Ciliophora, Hypotrichia)

2021 ◽  
Vol 12 ◽  
Author(s):  
Qi Gao ◽  
Chen Shao ◽  
Qiuyue Tang ◽  
Jingbao Li
Keyword(s):  
Molecular Phylogeny ◽  
New Genus ◽  
Sequence Data ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Small Subunit ◽  
Ssu Rdna ◽  
Original Population ◽  
The Family ◽  
Rdna Sequence Data

The morphology and morphogenesis of Pseudosincirra longicirrata nov. gen. and nov. comb., isolated from southern China, were investigated with living observation and protargol staining. Our population is similar to the original population in living characteristics and ciliary patterns. The main determinable morphogenetic features of P. longicirrata nov. comb. are the presence of five frontoventral-transverse cirral anlagen (FVT-anlagen) and a dorsomarginal kinety anlage. According to the origin of FVT-anlagen IV and V in proter, it can be determined that P. longicirrata nov. comb. possesses two frontoventral rows and one right marginal row. Hence, a new genus, Pseudosincirra nov. gen., is proposed, and the diagnosis of P. longicirrata nov. comb. is improved. The new genus is diagnosed as follows: adoral zone of membranelles and undulating membranes is in a Gonostomum pattern; there are three enlarged frontal cirri, one buccal cirrus, and one parabuccal cirrus; postperistomial cirrus and transverse cirri are lacking; there are two more or less long frontoventral rows and one right and two or more left marginal rows; cirri within all rows very widely spaced; dorsal kinety pattern is of Urosomoida type, that is, three dorsal kineties and one dorsomarginal kinety; and caudal cirri are present. Phylogenetic analyses based on the small subunit ribosomal (SSU rDNA) sequence data indicate that P. longicirrata nov. comb. clusters with Deviata and Perisincirra. It is considered that Pseudosincirra nov. gen. and Perisincirra paucicirrata should be assigned to the family Deviatidae; fine cirri, and cirri within all rows being relatively widely spaced, should be considered as plesiomorphies of Deviatidae; and Deviatidae is closely related to Dorsomarginalia or Strongylidium–Hemiamphisiella–Pseudouroleptus.

The complete description of larval stages of the lobster shrimpLeonardsaxius amurensis(Kobjakova, 1937) (Decapoda: Axiidea: Axiidae) identified by DNA barcoding

2017 ◽  
Vol 98 (6) ◽  
pp. 1435-1453 ◽  
Author(s):  
Elena S. Kornienko ◽  
Darya D. Golubinskaya ◽  
Olga M. Korn ◽  
Svetlana N. Sharina
Keyword(s):  
Larval Development ◽  
Sequence Data ◽  
Molecular Genetic ◽  
Sympatric Species ◽  
Molecular Genetic Analysis ◽  
Mitochondrial Coi ◽  
Larval Stages ◽  
The Family ◽  
Rdna Sequence Data ◽  
First Time

The complete larval development of the lobster shrimpLeonardsaxius amurensis(Kobjakova, 1937) (Decapoda: Axiidea: Axiidae) is described and illustrated for the first time. The first zoeae of this species were collected from the plankton samples and reared in the laboratory before moulting to the megalopa. A molecular genetic analysis based on comparison of partial mitochondrial COI, 12S rDNA and 16S rDNA sequence data confirmed the identity of axiid larvae found in the plankton andL. amurensisadults collected in the same area. The larval development ofL. amurensisincludes five zoeal stages and a single megalopa. Zoeae I ofL. amurensisare characterized by the presence of one short posterodorsal spine on the fifth pleonite in contrast to the larvae of related sympatric speciesBoasaxius princepshaving four posterodorsal spines on the pleonites 2–5.Leonardsaxius amurensisoccupies an intermediate position between lobster shrimps with abbreviated pelagic development (2–3 zoeal stages) and species with long development (up to eight zoeal stages). Thus, the number of zoeal stages in the family Axiidae varies widely, similarly to that in the families Callianassidae and Upogebiidae.

Generic delimitations in the family Stictidaceae (Ostropales, Ascomycota): the Stictis–Conotrema problem

2005 ◽  
Vol 37 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Mats WEDIN ◽  
Heidi DÖRING ◽  
Kristina KÖNBERG ◽  
Gunnar GILENSTAM
Keyword(s):  
Sequence Data ◽  
Sister Group ◽  
Lsu Rdna ◽  
Infrageneric Classification ◽  
Rdna Its ◽  
The Family ◽  
Rdna Sequence Data ◽  
Natural Groups ◽  
High Support

The family Stictidaceae (Ostropales, Ascomycota) contains both lichenized and non-lichenized fungi. Here, we test if Conotrema (lichenized) and Stictis (non-lichenized) as currently delimited are distinct monophyletic genera, by parsimony and parsimony jackknifing analyses of combined nuclear rDNA (ITS and partial LSU rDNA) and mitochondrial SSU rDNA sequence data matrices. The study includes four species of Stictis, three species of Conotrema, and representatives of the related Schizoxylon (lichenized), Odontotrema, Carestiella (at least sometimes associated with algae), Cryptodiscus and Thelotrema (lichenized). In all analyses, the Conotrema species were nested within Stictis with high support. Thus, we conclude that Conotrema are only lichenized representatives of Stictis. The type species of the two generic names, C. urceolatum and S. radiata, are sister taxa in our analyses. Furthermore, the analysis gave no support for the present infrageneric classification of Stictis. Carestiella socia (the type of Carestiella) and the two representatives of Schizoxylon studied were also nested within Stictis s. lat. The Odontotremataceae is the sister group to the Stictidaceae, and Cryptodiscus foveolaris groups with Thelotrema rather than with the Stictidaceae. We conclude that lichenization in the Stictidaceae does not characterize natural groups, and that Conotrema should be considered a synonym to Stictis, as predicted by anatomical characteristics. The new combinations Stictis urceolatum and Stictis populorum are made.

Ulva and Enteromorpha (Ulvales, Ulvophyceae, Chlorophyta) in eastern Australia: Comparison of morphological features and analyses of nuclear rDNA sequence data

1999 ◽  
Vol 12 (5) ◽  
pp. 709 ◽  
Author(s):  
Geoffrey W. Woolcott ◽  
Robert J. King
Keyword(s):  
Sequence Data ◽  
Morphological Plasticity ◽  
Morphological Characters ◽  
Australian Study ◽  
Internal Transcribed Spacer Region ◽  
Eastern Australia ◽  
Rdna Sequence Data ◽  
Ulva Australis ◽  
Potential Use

Specimens of Ulva Linnaeus and Enteromorpha Link (Ulvales, Ulvophyceae, Chlorophyta) were collected from 12 sites in eastern Australia and identified to species level on the basis of morphological characters described in the major Australian study of Womersley (1984). The species recognised were Ulva australis Areschoug, U. lactuca Linnaeus, U. fasciata Delile, Enteromorpha compressa (Linnaeus) Greville, E. flexuosa (Wulfen ex Roth) J.Agardh and E. intestinalis (Linnaeus) Link. Species placement within the genera Ulva and Enteromorpha is problematic and features of DNA were examined in order to assess their potential use as characters in species determinations. Analyses were conducted on sequence data derived from the internal transcribed spacer region ITS2, and the 5.8S gene. Groupings of the 12 isolates based on DNA analyses do not correlate with the species identified using morphology nor with the two genera. Further work is required before authoritative conclusions can be reached regarding the significance of morphological plasticity in determination of differences within and between Ulva and Enteromorpha species; nevertheless, DNA studies may provide a backbone of characters upon which to base such a study.

Phylogeny of the Parmeliaceae–DNA Data Versus Morphological Data

1998 ◽  
Vol 30 (4-5) ◽  
pp. 463-472 ◽  
Author(s):  
Jan-Eric Mattsson ◽  
Mats Wedin
Keyword(s):  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Data ◽  
Slight Variation ◽  
Hypogymnia Physodes ◽  
Nuclear Rdna ◽  
Future Studies ◽  
The Family ◽  
Rdna Sequence Data ◽  
Close Relationship

AbstractIn order to identify monophyletic groups within the family Parmeliaceae, eleven taxa (Bryoria capillaris, Cetraria islandica, Evernia pruniastri, Hypogymnia physodes, Parmelia saxatilis, Platismatia glauca, Pleurosticta acetabulum, Usneaflorida, Vulpicida juniperina, V. pinastri, and Xanthoparmelia conspersa) were studied using newly produced nuclear rDNA sequence data from the ITS and 5·8S regions. The resulting evolutionary hypothesis was compared with results from previous phylogenetic analyses based on anatomy, morphology, and chemistry. The outcome of this comparison does not support the earlier proposed phylogenies but is not stable enough for identifying monophyletic groups, with one exception. The results indicate a close relationship between Cetraria and Vulpicida, which is contradictory to previous published analyses. The variation in ascus structures in the Parmeliaceae is discussed and it is questioned whether the earlier distinguished ‘ forms ’ of ascus types represent synapomorphies, if they are based on poorly supported analyses, or if they are exaggerations of relatively slight variation in shape. Further interpretations of the results are discussed and areas of future studies based on DNA-data are suggested.

Natural occurrence of entomopathogenic nematodes (Rhabditida: Steinernematidae) on golf courses in eastern Canada

Nematology ◽  
2007 ◽  
Vol 9 (3) ◽  
pp. 325-332 ◽  
Author(s):  
Julie Dionne ◽  
Guy Bélair ◽  
S. Patricia Stock ◽  
Louis Simard ◽  
Hervé Mauléon
Keyword(s):  
Entomopathogenic Nematodes ◽  
Galleria Mellonella ◽  
Sequence Data ◽  
Entomopathogenic Nematode ◽  
Natural Occurrence ◽  
Golf Courses ◽  
Eastern Canada ◽  
Rdna Sequence Data ◽  
Listronotus Oregonensis ◽  
28S Rdna Sequence

AbstractA survey of entomopathogenic nematodes from 38 golf courses was conducted in different climatic areas of Ontario and Québec provinces, Canada, during autumn 2002 and 2003. Soil samples were collected on golf course greens, fairways and roughs. Entomopathogenic nematodes were isolated from soil using wax moth (Galleria mellonella) and carrot weevil (Listronotus oregonensis) larvae as bait. Of the 436 samples (218 sites), 11 contained entomopathogenic nematodes for this study. All entomopathogenic nematode-positive samples were isolated from roughs. Isolates were characterised using DNA satellite probes and 28S rDNA sequence data. Both methods confirmed the identities of nematode isolates as Steinernema carpocapsae, S. feltiae and S. kraussei.

On the systematic position of the lichen genus Heppia

2003 ◽  
Vol 35 (2) ◽  
pp. 151-156 ◽  
Author(s):  
Matthias Schultz ◽  
Burkhard Büdel
Keyword(s):  
Monte Carlo ◽  
Markov Chain ◽  
Markov Chain Monte Carlo ◽  
Bayesian Approach ◽  
Sequence Data ◽  
Systematic Position ◽  
The Family ◽  
Rdna Sequence Data ◽  
Family Level ◽  
18S Rdna Sequence

AbstractThe systematic position of the lichen genus Heppia in the order Lichinales was investigated. 18S rDNA sequence data were analyzed using a Bayesian approach to infer phylogeny using Markov chain Monte Carlo methods. The Lichinales are divided at family level into the sister groups Lichinaceae and Peltulaceae. The genus Heppia forms a highly supported clade in the family Lichinaceae. It is shown that the genus Heppia is morphologically well circumscribed within the Lichinaceae. As a nomenclatural consequence, the family name Heppiaceae is placed into synonymy under the older name Lichinaceae.

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