Taenia spp.: 18S rDNA microsatellites for molecular systematic diagnosis

2005 ◽  
Vol 79 (2) ◽  
pp. 139-142 ◽  
Author(s):  
P. Foronda ◽  
J.C. Casanova ◽  
E. Martinez ◽  
B. Valladares ◽  
C. Feliu
Keyword(s):  
Canary Islands ◽  
18S Rdna ◽  
Oryctolagus Cuniculus ◽  
Wild Rabbit ◽  
Molecular Systematic ◽  
Rdna Gene ◽  
Larval Stages ◽  
First Time ◽  
18S Rdna Gene ◽  
Taenia Parva

AbstractThe 18S rDNA gene of adult worms of Taenia parva found in Genetta genetta in the Iberian Peninsula and larval stages of T. pisiformis from the wild rabbit (Oryctolagus cuniculus) in Tenerife (Canary Islands) were amplified and sequenced. The sequences of the 18S rDNA gene of T. parva (1768 bp) and T. pisiformis (1760 bp) are reported for the first time (GenBank accession nos. AJ555167–AJ555168 and AJ555169–AJ555170, respectively). In 168 alignment positions microsatellites in the 18S rDNA of both taxa were detected for the first time (TGC in T. parva and TGCT in T. pisiformis) and differences in their sequences with different repetition numbers were observed. The use of nucleotide sequences of this gene in the resolution of systematic problems in cestodes is discussed with reference to the systematic status of Taenia spp. and mainly in human taeniids such as T. solium, T. saginata, and Asian human isolates of Taenia.

Hemiflagellochloris (Chlorophyceae, Chlorophyta), a new for Russian flora genus of green algae

2014 ◽  
Vol 48 ◽  
pp. 104-113
Author(s):  
A. D. Temraleeva ◽  
E. V. Mincheva ◽  
Yu. S. Bukin ◽  
M. V. Eltsov ◽  
V. A. Demkin ◽  
...  
Keyword(s):  
Green Algae ◽  
Molecular Analysis ◽  
18S Rdna ◽  
Phylogenetic Position ◽  
Rdna Gene ◽  
Algal Strain ◽  
The North ◽  
Volgograd Region ◽  
First Time ◽  
18S Rdna Gene

The genus Hemiflagellochloris Watanabe et al. was found in Russia for the first time. The algal strain was isolated from a buried solonetz in the zone of dry steppes (the north-end of Ergeni Hills, Volgograd Region). The morphology and ecology of this isolate are described. Its phylogenetic position within Chlorophyceae is determined by molecular analysis of 18S rDNA gene.

Observations upon some common cestode parasites of the wild rabbit, Oryctolagus cuniculus

Parasitology ◽  
1940 ◽  
Vol 32 (1) ◽  
pp. 78-90 ◽  
Author(s):  
W. M. R. Evans
Keyword(s):  
Intermediate Host ◽  
Oryctolagus Cuniculus ◽  
Wild Rabbit ◽  
Seasonal Fluctuations ◽  
Image Position ◽  
First Time

1. Between November 1936 and February 1937, ninety-six rabbits were examined, whilst between August 1937 and July 1938, 446 rabbits were examined for cestode parasites. The rabbits were obtained from the same area.2. The rabbits were infected with the following cestodes to the extent given, for the two periods respectively:3. Two species of the genus Hymenolepis are recorded for the first time from the rabbit, and they are briefly described.4. The seasonal fluctuations in the incidence of the above cestodes are discussed.5. The span of life of both Cittotaenia pectinata and C. denticulata is seen to be not greater than 10 months, and evidence is given to show that the intermediate host of C. denticulata is available between April and December, and that of C. pectinata from August to April.6. Evidence of host and age resistance is demonstrated in Cysticercus pisiformis.

scholarly journals Myxobolus marajoensis sp. n. (Myxosporea: Myxobolidae), parasite of the freshwater catfish Rhamdia quelen from the Brazilian Amazon region

2017 ◽  
Vol 26 (4) ◽  
pp. 465-471 ◽  
Author(s):  
Jacqueline Abrunhosa ◽  
José Ledamir Sindeaux-Neto ◽  
Ândrea Kely dos Santos ◽  
Igor Hamoy ◽  
Edilson Matos
Keyword(s):  
New Species ◽  
18S Rdna ◽  
Phylogenetic Analyses ◽  
Muscle Layer ◽  
Gene Sequences ◽  
Fishery Resource ◽  
Rdna Gene ◽  
Brazilian Amazon Region ◽  
Rhamdia Quelen ◽  
18S Rdna Gene

Abstract This study provides morphological and molecular data of a new parasite species found in the muscle layer of the intestinal tract of the South American silver catfish, Rhamdia quelen from Marajó Island region (Pará State, Brazil), an important fishery resource with recognized potential for fish farming. The morphology of these parasites was reanalyzed and phylogenetic analyses were run on their 18S rDNA gene sequences. The spores were morphologically distinct from those of other Myxobolus species described previously. The obtained partial sequence of the 18S rDNA gene sequences of the new species were compared to those of 24 other Myxobolus and Henneguya species available in GenBank. The results of morphological and molecular analyses indicated clearly the existence of a new species, Myxobolus marajoensis sp. n.

Polymorphisms in the 18S rDNA gene of Cystoisospora belli and clinical features of cystoisosporosis in HIV-infected patients

2010 ◽  
Vol 108 (3) ◽  
pp. 679-685 ◽  
Author(s):  
Deisy V. Resende ◽  
André L. Pedrosa ◽  
Dalmo Correia ◽  
Marlene Cabrine-Santos ◽  
Eliane Lages-Silva ◽  
...  
Keyword(s):  
Clinical Features ◽  
18S Rdna ◽  
Rdna Gene ◽  
18S Rdna Gene

The occurrence and abundance of helminth parasites of the mountain hare Lepus timidus (L.) and the wild rabbit Oryctolagus cuniculus (L.) in Aberdeenshire, Scotland

1986 ◽  
Vol 60 (2) ◽  
pp. 92-98 ◽  
Author(s):  
B. Boag ◽  
G. Iason
Keyword(s):  
Oryctolagus Cuniculus ◽  
Wild Rabbit ◽  
Helminth Parasites ◽  
Intestinal Helminths ◽  
British Isles ◽  
Cestode Species ◽  
Seasonal Fluctuations ◽  
Mountain Hare ◽  
Lepus Timidus ◽  
First Time

ABSTRACTMountain hares were collected each month between April 1984 and March 1985 and their intestines examined for helminths. 26 rabbits were also collected between Juny and December 1984 and examined for gastro-intestinal helminths. Three nematode and two cestode species were found in the hares while only two nematode and one cestode species were found in the rabbits. Trichostronglylus retortaeformis was recorded form 88% of the 193 hares and 92% of the rabbits While comparable figures for Passalurus ambiguus were 0·5% and 54% and for Mosgovoyia pectinata 14% and 81%. Seasonal fluctuations were observed in the T. retortaeformis populations in the hare; numbers tended to be low during the winter months and high throughout the summer. Paranoplocephala wimerosa was reported for the first time from the British Isles and Trichostrongylus axei was recorded for the forst time in the mountain hare.

A preliminary phylogenetic analysis of the Cymbellales based on 18S rDNA gene sequencing

2011 ◽  
Vol 26 (3) ◽  
pp. 305-315 ◽  
Author(s):  
Lenaïg Kermarrec ◽  
Luc Ector ◽  
Agnès Bouchez ◽  
Frédéric Rimet ◽  
Lucien Hoffmann
Keyword(s):  
Phylogenetic Analysis ◽  
18S Rdna ◽  
Gene Sequencing ◽  
Rdna Gene ◽  
18S Rdna Gene ◽  
Preliminary Phylogenetic Analysis

Capnodiaceous sooty mold phylogeny

1998 ◽  
Vol 76 (12) ◽  
pp. 2125-2130 ◽  
Author(s):  
Don R Reynolds
Keyword(s):  
18S Rdna ◽  
Monophyletic Group ◽  
Rdna Gene ◽  
Sooty Mold ◽  
18S Rdna Gene ◽  
Bitunicate Ascus

Sequences from the 18s rDNA gene of representatives of the capnodiaceous sooty mold families Antennulariellaceae, Capnodiaceae, and Metacapnodiaceae as well as 14 ascomycete taxa representing the Plectomycetes, Dothideales, Pyrenomycetes, and Pleosporales, and yeast outgroups were analyzed. Sooty mold capnodiaceous ascomycetes comprising were found to be a monophyletic group, the Capnodiales. The convergent origin of the bitunicate ascus associated with the periphysoid sterile element is validated. The major Capnodiales characters are the foliicolous habit, darkly pigmented hyphae, and a distinctive periphysoid sterile element associated with a fissitunicate type of bitunicate ascus.Key words: ascomycetes, Capnodiales, periphysoid sterile elements.

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