Spatial difference in genetic variation for fenitrothion tolerance between local populations of Daphnia galeata in Lake Kasumigaura, Japan

This study examines the spatial difference in genetic variation for tolerance to a pesticide, fenitrothion, in Daphnia galeata at field sites in Lake Kasumigaura, Japan. We estimated genetic values of isofemale lines established from dormant eggs of D. galeata collected from field sampling sites wit...

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Veröffentlicht in:Ecotoxicology (London, England). - 1992. - 26(2017), 10 vom: 26. Dez., Seite 1358-1365
1. Verfasser: Mano, Hiroyuki (VerfasserIn)
Weitere Verfasser: Tanaka, Yoshinari
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Ecotoxicology (London, England)
Schlagworte:Journal Article Ecological risk Evolvability Genetic variability Local adaptation Metapopulation Quantitative genetics Insecticides Water Pollutants, Chemical Fenitrothion W8M4X3Y7ZY
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520 |a This study examines the spatial difference in genetic variation for tolerance to a pesticide, fenitrothion, in Daphnia galeata at field sites in Lake Kasumigaura, Japan. We estimated genetic values of isofemale lines established from dormant eggs of D. galeata collected from field sampling sites with the toxicant threshold model applied using acute toxicity. We compared genetic values and variances and broad-sense heritability across different sites in the lake. Results showed that the mean tolerance values to fenitrothion did not differ spatially. The variance in genetic value and heritability of fenitrothion tolerance significantly differed between sampling sites, revealing that long-term ecological risk of fenitrothion may differ between local populations in the lake. These results have implications for aquatic toxicology research, suggesting that differences in genetic variation of tolerance to a chemical among local populations must be considered for understanding the long-term ecological risks of the chemical over a large geographic area 
650 4 |a Journal Article 
650 4 |a Ecological risk 
650 4 |a Evolvability 
650 4 |a Genetic variability 
650 4 |a Local adaptation 
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650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a Fenitrothion  |2 NLM 
650 7 |a W8M4X3Y7ZY  |2 NLM 
700 1 |a Tanaka, Yoshinari  |e verfasserin  |4 aut 
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