Krefftascaris (Nematoda, Ascaridoidea) from Australian side-necked turtles with description of krefftascaris sharpiloi SP. N. from chelodina rugosa

V. Tkach, Yu Kuzmin, S. Snyder

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Previously known records of ascaridoid nematodes Krefftascaris Sprent, 1980 are summarized and new records of the genus reported. Krefftascaris sharpiloi Tkach, Kuzmin et Snyder, sp. n. is described from specimens found in the stomach of the northern snake-necked turtle Chelodina rugosa collected from two localities in Northern Territory, Australia. The new species differs from the only previously known Krefftascaris species, K. parmenteri Sprent, 1980, by the presence of thickened and bifurcated anterior edges of the lateral cuticular alae and a difference in the relative distance from the anterior end to the nerve ring which is 1.5 to 2 times greater in K. parmenteri. Comparison of approximately 2.100 bases of ribosomal DNA sequences This study contains first reports of Krefftascaris in Chelodina rugosa, Chelodina burrungandjii, Chelodina canni and Emydura tanybaraga and the first records of this genus in the Northern Territory, Queensland and Western Australia. Molecular phylogenetic analysis based on sequences of nuclear small ribosomal subunit gene has demonstrated close affinities between Krefftascaris and Heterocheilus, the type genus of the Heterocheilidae and Heterocheilinae. Parasitism of several species and genera of Heterocheilidae in crocodiles allows us to hypothesize that Krefftascaris may have been acquired by turtles from crocodilians.

Original languageEnglish (US)
Pages (from-to)e1-e11
JournalVestnik Zoologii
Volume44
Issue number1
DOIs
StatePublished - Jan 1 2010

Fingerprint

turtle
turtles
Nematoda
Northern Territory
snake
parasitism
new record
nematode
Crocodylia
new species
phylogenetics
DNA
crocodiles
gene
ribosomal DNA
Western Australia
snakes
Queensland
nerve tissue
stomach

Keywords

  • Ascaridiidae
  • Australia
  • Chelodina
  • Elseya
  • Krefftascaris
  • Molecular phylogeny
  • Nematoda
  • Ribosomal DNA sequences
  • Sp. n.
  • Turtles

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

Cite this

Krefftascaris (Nematoda, Ascaridoidea) from Australian side-necked turtles with description of krefftascaris sharpiloi SP. N. from chelodina rugosa. / Tkach, V.; Kuzmin, Yu; Snyder, S.

In: Vestnik Zoologii, Vol. 44, No. 1, 01.01.2010, p. e1-e11.

Research output: Contribution to journalArticle

@article{6af31cecc211473c9cf841476b95a123,
title = "Krefftascaris (Nematoda, Ascaridoidea) from Australian side-necked turtles with description of krefftascaris sharpiloi SP. N. from chelodina rugosa",
abstract = "Previously known records of ascaridoid nematodes Krefftascaris Sprent, 1980 are summarized and new records of the genus reported. Krefftascaris sharpiloi Tkach, Kuzmin et Snyder, sp. n. is described from specimens found in the stomach of the northern snake-necked turtle Chelodina rugosa collected from two localities in Northern Territory, Australia. The new species differs from the only previously known Krefftascaris species, K. parmenteri Sprent, 1980, by the presence of thickened and bifurcated anterior edges of the lateral cuticular alae and a difference in the relative distance from the anterior end to the nerve ring which is 1.5 to 2 times greater in K. parmenteri. Comparison of approximately 2.100 bases of ribosomal DNA sequences This study contains first reports of Krefftascaris in Chelodina rugosa, Chelodina burrungandjii, Chelodina canni and Emydura tanybaraga and the first records of this genus in the Northern Territory, Queensland and Western Australia. Molecular phylogenetic analysis based on sequences of nuclear small ribosomal subunit gene has demonstrated close affinities between Krefftascaris and Heterocheilus, the type genus of the Heterocheilidae and Heterocheilinae. Parasitism of several species and genera of Heterocheilidae in crocodiles allows us to hypothesize that Krefftascaris may have been acquired by turtles from crocodilians.",
keywords = "Ascaridiidae, Australia, Chelodina, Elseya, Krefftascaris, Molecular phylogeny, Nematoda, Ribosomal DNA sequences, Sp. n., Turtles",
author = "V. Tkach and Yu Kuzmin and S. Snyder",
year = "2010",
month = "1",
day = "1",
doi = "10.2478/v10058-010-0001-2",
language = "English (US)",
volume = "44",
pages = "e1--e11",
journal = "Vestnik Zoologii",
issn = "0084-5604",
publisher = "National Academy of Sciences of Ukraine",
number = "1",

}

TY - JOUR

T1 - Krefftascaris (Nematoda, Ascaridoidea) from Australian side-necked turtles with description of krefftascaris sharpiloi SP. N. from chelodina rugosa

AU - Tkach, V.

AU - Kuzmin, Yu

AU - Snyder, S.

PY - 2010/1/1

Y1 - 2010/1/1

N2 - Previously known records of ascaridoid nematodes Krefftascaris Sprent, 1980 are summarized and new records of the genus reported. Krefftascaris sharpiloi Tkach, Kuzmin et Snyder, sp. n. is described from specimens found in the stomach of the northern snake-necked turtle Chelodina rugosa collected from two localities in Northern Territory, Australia. The new species differs from the only previously known Krefftascaris species, K. parmenteri Sprent, 1980, by the presence of thickened and bifurcated anterior edges of the lateral cuticular alae and a difference in the relative distance from the anterior end to the nerve ring which is 1.5 to 2 times greater in K. parmenteri. Comparison of approximately 2.100 bases of ribosomal DNA sequences This study contains first reports of Krefftascaris in Chelodina rugosa, Chelodina burrungandjii, Chelodina canni and Emydura tanybaraga and the first records of this genus in the Northern Territory, Queensland and Western Australia. Molecular phylogenetic analysis based on sequences of nuclear small ribosomal subunit gene has demonstrated close affinities between Krefftascaris and Heterocheilus, the type genus of the Heterocheilidae and Heterocheilinae. Parasitism of several species and genera of Heterocheilidae in crocodiles allows us to hypothesize that Krefftascaris may have been acquired by turtles from crocodilians.

AB - Previously known records of ascaridoid nematodes Krefftascaris Sprent, 1980 are summarized and new records of the genus reported. Krefftascaris sharpiloi Tkach, Kuzmin et Snyder, sp. n. is described from specimens found in the stomach of the northern snake-necked turtle Chelodina rugosa collected from two localities in Northern Territory, Australia. The new species differs from the only previously known Krefftascaris species, K. parmenteri Sprent, 1980, by the presence of thickened and bifurcated anterior edges of the lateral cuticular alae and a difference in the relative distance from the anterior end to the nerve ring which is 1.5 to 2 times greater in K. parmenteri. Comparison of approximately 2.100 bases of ribosomal DNA sequences This study contains first reports of Krefftascaris in Chelodina rugosa, Chelodina burrungandjii, Chelodina canni and Emydura tanybaraga and the first records of this genus in the Northern Territory, Queensland and Western Australia. Molecular phylogenetic analysis based on sequences of nuclear small ribosomal subunit gene has demonstrated close affinities between Krefftascaris and Heterocheilus, the type genus of the Heterocheilidae and Heterocheilinae. Parasitism of several species and genera of Heterocheilidae in crocodiles allows us to hypothesize that Krefftascaris may have been acquired by turtles from crocodilians.

KW - Ascaridiidae

KW - Australia

KW - Chelodina

KW - Elseya

KW - Krefftascaris

KW - Molecular phylogeny

KW - Nematoda

KW - Ribosomal DNA sequences

KW - Sp. n.

KW - Turtles

UR - http://www.scopus.com/inward/record.url?scp=77949600061&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77949600061&partnerID=8YFLogxK

U2 - 10.2478/v10058-010-0001-2

DO - 10.2478/v10058-010-0001-2

M3 - Article

AN - SCOPUS:77949600061

VL - 44

SP - e1-e11

JO - Vestnik Zoologii

JF - Vestnik Zoologii

SN - 0084-5604

IS - 1

ER -