Taxonomy of Tobrilidae species from the Alkaline Lakes of the western Nebraska Sandhills

© 2024 Peter G. Mullin et al., published by Sciendo.

Bibliographische Detailangaben
Veröffentlicht in:Journal of nematology. - 1969. - 56(2024), 1 vom: 25. März, Seite 20240025
1. Verfasser: Mullin, Peter G (VerfasserIn)
Weitere Verfasser: Harris, Timothy, Higgins, Rebecca, Dutta, Enakshy, Porazinska, Dorota L, Powers, Kirsten, Powers, Thomas
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Journal of nematology
Schlagworte:Journal Article Aquatic nematodes DNA barcoding Nebraska Sandhills Tobrilidae extreme environments phylogeny taxonomy
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520 |a Six distinct COI mitochondrial Haplotype Groups (HG) are morphologically, ecologically, and genetically characterized from the aquatic nematode family Tobrilidae. Collection locations included the extreme habitats of the Alkaline Lakes in the western Nebraska Sandhills and the contaminated stream, Johnson Creek, bordering the AltEn 2021 catastrophic pesticide release near the village of Mead in eastern Nebraska. Maximum likelihood and genetic distance metrics supported the genetic integrity of the haplotype groups. Discriminant function analysis of COI haplotype group datasets of combined morphological characters and soil chemistry attributes for both male and female Tobrilidae were classified correctly in all but one case. Scanning electron microscopy revealed new details about amphid apertures, male supplements, and spicules. Partial 18S gene phylogeny suggests that the genus Semitobrilus may not be a member of the subfamily Neotobrilinae, and three specimens in the 226 tobrilid dataset provide evidence of incongruence between COI and 18S derived phylogenies. Given the strong signal provided by the environmental chemistry data, tobrilid mitochondrial haplotypes may well have value as environmental indicators 
650 4 |a Journal Article 
650 4 |a Aquatic nematodes 
650 4 |a DNA barcoding 
650 4 |a Nebraska Sandhills 
650 4 |a Tobrilidae 
650 4 |a extreme environments 
650 4 |a phylogeny 
650 4 |a taxonomy 
700 1 |a Harris, Timothy  |e verfasserin  |4 aut 
700 1 |a Higgins, Rebecca  |e verfasserin  |4 aut 
700 1 |a Dutta, Enakshy  |e verfasserin  |4 aut 
700 1 |a Porazinska, Dorota L  |e verfasserin  |4 aut 
700 1 |a Powers, Kirsten  |e verfasserin  |4 aut 
700 1 |a Powers, Thomas  |e verfasserin  |4 aut 
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