Biology of the Ectomycorrhizal Genus Rhizopogon. V. Phylogenetic Relationships in the Boletales Inferred from LSU rDNA Sequences

Mycologia ◽  
2001 ◽  
Vol 93 (1) ◽  
pp. 82 ◽  
Author(s):  
Lisa C. Grubisha ◽  
James M. Trappe ◽  
Randy Molina ◽  
Joseph W. Spatafora
Keyword(s):  
Phylogenetic Relationships ◽  
Lsu Rdna ◽  
Rdna Sequences

Phylogeny of dracunculoid nematodes (Chromadorea: Rhabditida: Spirurina: Dracunculoidea) from some Eurasian freshwater fishes

Zootaxa ◽  
2020 ◽  
Vol 4858 (4) ◽  
pp. 521-541
Author(s):  
SERGEY G. SOKOLOV ◽  
ALEXANDER P. KALMYKOV ◽  
SVETLANA V. MALYSHEVA
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Relationship ◽  
Ribosomal Dna ◽  
Phylogenetic Relationships ◽  
Type Species ◽  
Freshwater Fishes ◽  
Ssu Rdna ◽  
Lsu Rdna ◽  
Rdna Sequences ◽  
The Family

Sets of small ribosomal DNA (SSU rDNA) and large ribosomal DNA (LSU rDNA) sequences were obtained for Philometroides moraveci Vismanis & Yunchis, 1994, Philometra kotlani (Molnár, 1969), Philometra rischta Skrjabin, 1923, Philometra cf. obturans (Prenant, 1886) (Philometridae), Sinoichthyonema amuri (Garkavi, 1972), Agrachanus scardinii (Molnár, 1966), Kalmanmolnaria intestinalis (Dogiel & Bychowsky, 1934) and Skrjabillanus tincae Shigin & Shigina, 1958 (Skrjabillanidae). Phylogenetic analysis of SSU rDNA data shows that dracunculoid nematodes are divided into two well-supported clades designated as Clade I and Clade II, respectively. Clade I includes the type species of the genus Philonema Kuitunen-Ekbaum, 1933, some species from the family Daniconematidae Moravec & Køie, 1987 and two subfamilies of skrjabillanids, Skrjabillaninae Shigin & Shigina, 1958 and Esocineminae Moravec, 2006. Clade II unites species from the families Dracunculidae Stiles, 1907, Micropleuridae Baylis & Daubney, 1926 and Philometridae Baylis & Daubney, 1926. Within the Philometridae, there are several well-supported groups of species, one of which unites freshwater Philometra spp. from the Palearctic cyprinids, identified as P. kotlani, P rischta, P. ovata (Zeder, 1803) and P. cyprinirutili (Creplin, 1825). However, the phylogenetic relationships of most philometrids are unresolved. An analysis of partial SSU and LSU rDNA sequences indicates that there is no direct phylogenetic relationship between Agrachanus Tikhomirova, 1971 (type species Skrjabillanus scardinii Molnár, 1966) and Skrjabillanus Shigin & Shigina, 1958 (type species Sk. tincae), which means that the genus Agrachanus can be resurrected. Our study confirms that Philonematinae Ivashkin, Sobolev & Khromova, 1971 should be elevated to the family rank. We formally establish the family Philonematidae Ivashkin, Sobolev & Khromova, 1971 stat. nov. We also suggest combining the superfamilies Dracunculoidea Stiles, 1907 and Camallanoidea Railliet & Henry, 1915 into the infraorder Camallanomorpha Roberts, Janovy & Nadler, 2013. 

Phylogenetic relationships in the harmful dinoflagellate Cochlodinium polykrikoides (Gymnodiniales, Dinophyceae) inferred from LSU rDNA sequences

Harmful Algae ◽  
2008 ◽  
Vol 7 (3) ◽  
pp. 271-277 ◽  
Author(s):  
Mitsunori Iwataki ◽  
Hisae Kawami ◽  
Koichiro Mizushima ◽  
Christina M. Mikulski ◽  
Gregory J. Doucette ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Lsu Rdna ◽  
Cochlodinium Polykrikoides ◽  
Rdna Sequences ◽  
Harmful Dinoflagellate

scholarly journals Molecular characterization of Baylisascaris devosi Sprent, 1952 (Ascaridoidea, Nematoda) from Kamchatka sables

2017 ◽  
Vol 54 (2) ◽  
pp. 105-112 ◽  
Author(s):  
Nina A. Tranbenkova ◽  
Sergei E. Spiridonov
Keyword(s):  
Molecular Characterization ◽  
Phylogenetic Relationships ◽  
Intestinal Parasites ◽  
Mitochondrial Gene ◽  
Kamchatka Peninsula ◽  
Morphological Data ◽  
Lsu Rdna ◽  
Sem Images ◽  
Rdna Sequences

SummaryThe nematodes of the genus Baylisascaris are common intestinal parasites of sables (Martes (M.) zibellina kamtschadalica Birula, 1916) on the entire territory of Kamchatka peninsula. Partial sequences of Cox I mitochondrial gene were used for molecular characterization of these nematodes, which confirmed the identification based on morphological data as B. devosi Sprent, 1952. Phylogenetic relationships of this Baylisascaris species were also inferred from the ITS rDNA and LSU rDNA sequences. SEM images were provided for taxonomically important morphological features.

Biology of the ectomycorrhizal genus Rhizopogon. V. Phylogenetic relationships in the Boletales inferred from LSU rDNA sequences

Mycologia ◽  
2001 ◽  
Vol 93 (1) ◽  
pp. 82-89 ◽  
Author(s):  
Lisa C. Grubisha ◽  
James M. Trappe ◽  
Randy Molina ◽  
Joseph W. Spatafora
Keyword(s):  
Phylogenetic Relationships ◽  
Lsu Rdna ◽  
Rdna Sequences

Phylogenetic relationships of the family Gryporhynchidae (Cestoda: Cyclophyllidea) inferred through SSU and LSU rDNA sequences

2018 ◽  
Vol 93 (6) ◽  
pp. 763-771 ◽  
Author(s):  
M.P. Ortega-Olivares ◽  
M. García-Varela
Keyword(s):  
Bayesian Inference ◽  
Maximum Likelihood ◽  
Species Composition ◽  
Phylogenetic Relationships ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Lsu Rdna ◽  
Rdna Sequences ◽  
The Family ◽  
Shape And Size

AbstractTapeworms of the family Gryporhynchidae are endoparasites of fish-eating birds distributed worldwide. Currently the family contains 16 genera classified on the basis of the morphology of the rostellar apparatus, rostellar hooks and strobilar anatomy. However, the phylogenetic relationships among the genera are still unknown. In this study, sequences of the near complete 18S (SSU) and 28S (LSU) from rDNA of 13 species of gryporhynchids (adult specimens) representing eight genera (Cyclustera, Dendrouterina, Glossocercus, Gryporhynchidae gen. sp., Neovalipora, Paradilepis, Parvitaenia, Valipora) and one species of metacestode from fish (Neovalipora) were generated. Additionally, sequences of metacestodes of the genera Amirthalingamia, Neogryporhynchus, Paradilepis, Parvitaenia and Valipora from Africa recently added to the GenBank database were analysed. Phylogenetic relationships were inferred using maximum-likelihood (ML) and Bayesian inference of each (SSU and LSU) dataset. The phylogenetic analyses indicated that the family Gryporhynchidae is a well-supported monophyletic group within the Cyclophyllidea. The trees inferred with SSU and LSU datasets had similar topologies and suggested that the genera Glossocercus (two species sequenced) and Paradilepis (four spp.) are monophyletic. In contrast, Dendrouterina, Parvitaenia and Valipora are paraphyletic, suggesting that the species composition of these genera should be critically reviewed. Interestingly, species of the genera that use the same groups of definitive hosts such as herons (Ardeidae), cormorants (Phalacrocoracidae) and ibis (Threskiornithidae) are together in the phylogenetic tree, even though they differ markedly from each other in some morphological characters, especially shape and size of rostellar hooks.

Panagrellus levitatus sp. n. (Rhabditida: Panagrolaimidae), a nematode suppressing Drosophila melanogaster in laboratory cultures

Nematology ◽  
2018 ◽  
Vol 20 (3) ◽  
pp. 285-297 ◽  
Author(s):  
Elena Ivanova ◽  
Ksenia Perfilieva ◽  
Sergei Spiridonov
Keyword(s):  
Drosophila Melanogaster ◽  
New Species ◽  
Nematode Species ◽  
Laboratory Culture ◽  
Ssu Rdna ◽  
Lsu Rdna ◽  
Red Palm Weevil ◽  
Rdna Sequences ◽  
Mass Reproduction ◽  
First Time

A new nematode species recovered from the laboratory culture ofDrosophila melanogasteris described and illustrated. The mass reproduction ofPanagrellus levitatussp. n. in the fly culture occurred several times and resulted in a significant reduction of the fly population. Nematode outbreaks happened after the introduction ofD. melanogasterto the culture from natural sources. The new species is morphologically similar toP. ulmi. Partial LSU rDNA and SSU rDNA sequences were obtained and subjected to phylogenetic analysis that demonstrated the affinity of the new species withPanagrellussp. ‘MC2014’ from a red palm weevil. For the first time, the dauer juveniles ofPanagrelluswere described.

Phylogenetic relationships ofSphaerophoraceae (Ascomycetes) inferred from SSU rDNA sequences

1998 ◽  
Vol 209 (1-2) ◽  
pp. 75-83 ◽  
Author(s):  
Mats Wedin ◽  
Anders Tehler ◽  
Andrea Gargas
Keyword(s):  
Phylogenetic Relationships ◽  
Ssu Rdna ◽  
Rdna Sequences

A natural classification of Lasiosphaeria based on nuclear LSU rDNA sequences

2004 ◽  
Vol 108 (1) ◽  
pp. 26-34 ◽  
Author(s):  
Andrew N. Miller ◽  
Sabine M. Huhndorf
Keyword(s):  
Lsu Rdna ◽  
Natural Classification ◽  
Rdna Sequences

Phylogenetic Analysis of Molluscan Mitochondrial LSU rDNA Sequences and Secondary Structures

2000 ◽  
Vol 15 (1) ◽  
pp. 83-102 ◽  
Author(s):  
Charles Lydeard ◽  
Wallace E. Holznagel ◽  
Murray N. Schnare ◽  
Robin R. Gutell
Keyword(s):  
Phylogenetic Analysis ◽  
Secondary Structures ◽  
Lsu Rdna ◽  
Rdna Sequences
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