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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F12%3A00376673%21RIV13-GA0-60077344
rdf:type
n10:Vysledek skos:Concept
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S0020751912000239
dcterms:description
Caryophyllidean cestodes (Platyhelminthes) represent an unusual group of tapeworms lacking serially repeated body parts that potentially diverged from the common ancestor of the Eucestoda prior to the evolution of segmentation. Here we evaluate the utility of two nuclear and two mitochondrial molecular markers (ssrDNA and lsrDNA, nad3 and cox1) for use in circumscribing generic boundaries and estimating interrelationships in the group. We show that these commonly employed markers do not contain sufficient signal to infer well-supported phylogenetic estimates due to substitution saturation. Moreover, we detected multiple trnK + nad3 + trnS + trnW+cox1 haplotypes within individuals, indicating a history of gene exchange between the mitochondrial and nuclear genomes. The presence of such nuclear paralogs (i.e. numts), to our knowledge described here in cestodes for the first time, together with the results of phylogenetic, saturation and split-decomposition analyses all suggest that finding informative markers for estimating caryophyllidean evolution is unusually problematic in comparison to other major lineages of tapeworms. Caryophyllidean cestodes (Platyhelminthes) represent an unusual group of tapeworms lacking serially repeated body parts that potentially diverged from the common ancestor of the Eucestoda prior to the evolution of segmentation. Here we evaluate the utility of two nuclear and two mitochondrial molecular markers (ssrDNA and lsrDNA, nad3 and cox1) for use in circumscribing generic boundaries and estimating interrelationships in the group. We show that these commonly employed markers do not contain sufficient signal to infer well-supported phylogenetic estimates due to substitution saturation. Moreover, we detected multiple trnK + nad3 + trnS + trnW+cox1 haplotypes within individuals, indicating a history of gene exchange between the mitochondrial and nuclear genomes. The presence of such nuclear paralogs (i.e. numts), to our knowledge described here in cestodes for the first time, together with the results of phylogenetic, saturation and split-decomposition analyses all suggest that finding informative markers for estimating caryophyllidean evolution is unusually problematic in comparison to other major lineages of tapeworms.
dcterms:title
Substitution saturation and nuclear paralogs of commonly employed phylogenetic markers in the Caryophyllidea, an unusual group of non-segmented tapeworms (Platyhelminthes) Substitution saturation and nuclear paralogs of commonly employed phylogenetic markers in the Caryophyllidea, an unusual group of non-segmented tapeworms (Platyhelminthes)
skos:prefLabel
Substitution saturation and nuclear paralogs of commonly employed phylogenetic markers in the Caryophyllidea, an unusual group of non-segmented tapeworms (Platyhelminthes) Substitution saturation and nuclear paralogs of commonly employed phylogenetic markers in the Caryophyllidea, an unusual group of non-segmented tapeworms (Platyhelminthes)
skos:notation
RIV/60077344:_____/12:00376673!RIV13-GA0-60077344
n10:predkladatel
n16:ico%3A60077344
n3:aktivita
n11:P n11:I
n3:aktivity
I, P(GA524/08/0885), P(GBP505/12/G112), P(GD206/09/H026)
n3:cisloPeriodika
3
n3:dodaniDat
n7:2013
n3:domaciTvurceVysledku
n12:7130570 n12:5218136
n3:druhVysledku
n6:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
172356
n3:idVysledku
RIV/60077344:_____/12:00376673
n3:jazykVysledku
n14:eng
n3:klicovaSlova
Caryophyllidea; Cestoda; Split-decomposition; Numts; rDNA; mtDNA; cox1; nad3
n3:klicoveSlovo
n4:Numts n4:Cestoda n4:rDNA n4:Split-decomposition n4:nad3 n4:Caryophyllidea n4:mtDNA n4:cox1
n3:kodStatuVydavatele
AU - Australské společenství
n3:kontrolniKodProRIV
[4EC8F0AE2CF5]
n3:nazevZdroje
International Journal for Parasitology
n3:obor
n20:GJ
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
5
n3:projekt
n13:GA524%2F08%2F0885 n13:GD206%2F09%2FH026 n13:GBP505%2F12%2FG112
n3:rokUplatneniVysledku
n7:2012
n3:svazekPeriodika
42
n3:tvurceVysledku
Olson, P. D. Bazsalovicsová, E. Brabec, Jan Kraľová-Hromadová, I. Scholz, Tomáš
n3:wos
000302761400006
s:issn
0020-7519
s:numberOfPages
9
n18:doi
10.1016/j.ijpara.2012.01.005