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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F12%3A00381152%21RIV13-GA0-60077344
rdf:type
n6:Vysledek skos:Concept
rdfs:seeAlso
http://link.springer.com/article/10.1007%2Fs00436-012-3001-z
dcterms:description
The sequence structure of the ribosomal internal transcribed spacer 2 (ITS2) was determined for six species of Khawia (Cestoda: Caryophyllidea), parasites of cyprinid fish in the Holarctic Region. Homologous intragenomic ITS2 structure was found in Khawia armeniaca, Khawia baltica, and Khawia rossittensis; whereas divergent intragenomic ITS2 copies were detected in Chinese, Japanese, and Slovak isolates of Khawia sinensis and in Khawia japonensis, both parasitic in common carp, and in Khawia saurogobii, recently described from Chinese lizard gudgeon in China. Despite distinct morphological differences between K. saurogobii and K. sinensis, both species display very high level of molecular homogeneity. Variation in number of short repetitive motifs [(GCCT)( n ) (GCCC)( n )], [(GTG)( n )], [(ATAC)( n )], [ACGTGT (TCGTGT)( n )], [(GT)( n )], [(GT)( n )], and [(ACCT)( n ) (GCCT)( n )] resulted in assortment of ITS2 sequences in four ITS2 variants in K. saurogobii from China, three in Chinese and Japanese isolates of K. sinensis, and five ITS2 variants in K. sinensis from Slovakia. In K. japonensis, the structure and arrangement of microsatellites was different from those of K. sinensis and K. saurogobii. The heterogeneity in the number of two microsatellite regions [(TG)( n ); (TTG)( n )] divided ITS2 clones into two variants-first ITS2 variant (472 bp) with (TG)(5) and (TTG)(6), and second variant with (TG)(7) and (TTG)(2) (465 bp). Sequence identity of K. saurogobii with all but one (K. sinensis) congeneric species ranged between 49.5 and 69.2 %, which corresponds to the interspecific differences. In contrast, sequence identity of K. saurogobii and K. sinensis (87.6-95.0 %) failed into the range of intraspecific variation determined for K. sinensis samples. This close genetic similarity indicates that recently described K. saurogobii may have undergone morphological divergence as a result of ongoing sympatric speciation by host switching. The sequence structure of the ribosomal internal transcribed spacer 2 (ITS2) was determined for six species of Khawia (Cestoda: Caryophyllidea), parasites of cyprinid fish in the Holarctic Region. Homologous intragenomic ITS2 structure was found in Khawia armeniaca, Khawia baltica, and Khawia rossittensis; whereas divergent intragenomic ITS2 copies were detected in Chinese, Japanese, and Slovak isolates of Khawia sinensis and in Khawia japonensis, both parasitic in common carp, and in Khawia saurogobii, recently described from Chinese lizard gudgeon in China. Despite distinct morphological differences between K. saurogobii and K. sinensis, both species display very high level of molecular homogeneity. Variation in number of short repetitive motifs [(GCCT)( n ) (GCCC)( n )], [(GTG)( n )], [(ATAC)( n )], [ACGTGT (TCGTGT)( n )], [(GT)( n )], [(GT)( n )], and [(ACCT)( n ) (GCCT)( n )] resulted in assortment of ITS2 sequences in four ITS2 variants in K. saurogobii from China, three in Chinese and Japanese isolates of K. sinensis, and five ITS2 variants in K. sinensis from Slovakia. In K. japonensis, the structure and arrangement of microsatellites was different from those of K. sinensis and K. saurogobii. The heterogeneity in the number of two microsatellite regions [(TG)( n ); (TTG)( n )] divided ITS2 clones into two variants-first ITS2 variant (472 bp) with (TG)(5) and (TTG)(6), and second variant with (TG)(7) and (TTG)(2) (465 bp). Sequence identity of K. saurogobii with all but one (K. sinensis) congeneric species ranged between 49.5 and 69.2 %, which corresponds to the interspecific differences. In contrast, sequence identity of K. saurogobii and K. sinensis (87.6-95.0 %) failed into the range of intraspecific variation determined for K. sinensis samples. This close genetic similarity indicates that recently described K. saurogobii may have undergone morphological divergence as a result of ongoing sympatric speciation by host switching.
dcterms:title
Sequence structure and intragenomic variability of ribosomal ITS2 in monozoic tapeworms of the genus Khawia (Cestoda: Caryophyllidea), parasites of cyprinid fish Sequence structure and intragenomic variability of ribosomal ITS2 in monozoic tapeworms of the genus Khawia (Cestoda: Caryophyllidea), parasites of cyprinid fish
skos:prefLabel
Sequence structure and intragenomic variability of ribosomal ITS2 in monozoic tapeworms of the genus Khawia (Cestoda: Caryophyllidea), parasites of cyprinid fish Sequence structure and intragenomic variability of ribosomal ITS2 in monozoic tapeworms of the genus Khawia (Cestoda: Caryophyllidea), parasites of cyprinid fish
skos:notation
RIV/60077344:_____/12:00381152!RIV13-GA0-60077344
n6:predkladatel
n19:ico%3A60077344
n4:aktivita
n12:P n12:Z
n4:aktivity
P(GA524/08/0885), P(GBP505/12/G112), P(GD206/09/H026), Z(AV0Z60220518)
n4:cisloPeriodika
4
n4:dodaniDat
n13:2013
n4:domaciTvurceVysledku
n21:7130570
n4:druhVysledku
n9:J
n4:duvernostUdaju
n17:S
n4:entitaPredkladatele
n16:predkladatel
n4:idSjednocenehoVysledku
167523
n4:idVysledku
RIV/60077344:_____/12:00381152
n4:jazykVysledku
n5:eng
n4:klicovaSlova
INTERNAL TRANSCRIBED SPACER-1; ATRACTOLYTOCESTUS-HURONENSIS; SYMPATRIC SPECIATION; SINENSIS HSU; RDNA; DNA; PLATYHELMINTHES; PARALOGUES; EVOLUTION; carp
n4:klicoveSlovo
n11:PARALOGUES n11:carp n11:EVOLUTION n11:INTERNAL%20TRANSCRIBED%20SPACER-1 n11:SYMPATRIC%20SPECIATION n11:SINENSIS%20HSU n11:RDNA n11:DNA n11:PLATYHELMINTHES n11:ATRACTOLYTOCESTUS-HURONENSIS
n4:kodStatuVydavatele
DE - Spolková republika Německo
n4:kontrolniKodProRIV
[C105FCFF0749]
n4:nazevZdroje
Parasitology Research
n4:obor
n20:GJ
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
4
n4:projekt
n7:GD206%2F09%2FH026 n7:GA524%2F08%2F0885 n7:GBP505%2F12%2FG112
n4:rokUplatneniVysledku
n13:2012
n4:svazekPeriodika
111
n4:tvurceVysledku
Kraľová-Hromadová, I. Bazsalovicsová, E. Oros, M. Scholz, Tomáš
n4:wos
000308952900025
n4:zamer
n18:AV0Z60220518
s:issn
0932-0113
s:numberOfPages
7
n3:doi
10.1007/s00436-012-3001-z