(A) Breeding and selection to assess heritability of nicotine-induced place preference in ENU-mutagenized zebrafish. To test whether nicotine preference is heritable, fish in the upper (blue circle) and lower (red circle) 10% of the change in preference distribution curve were inbred and screened for CPP (Second generation CPP assay). A similar approach was used for the third generation CPP assay. (B) CPP for nicotine is heritable. Mean preference change is increasingly distinct for the second and third generation CPP analysis. Plot represents mean and ± SEM. First generation (corresponding to the F3 families used for the screen) (n = 120): mean = 0.11; SD = 0.17. Second generation: Offspring of fish from upper 10% of the first generation screen (n = 92): mean = 0.17; SD = 0.14. Offspring of fish from lower 10% of the first generation screen (n = 64): mean = 0.08; SD = 0.15. Third generation. Offspring of fish from upper 10% of the second generation screen (n = 69): mean = 0.21; SD = 0.10. Offspring of fish from lower 10% of the second generation screen (n = 67): mean = 0.01; SD = 0.09.
Nicotine CPP over three generations.
Expression Data
Expression Detail
Antibody Labeling
Phenotype Data
Phenotype Detail
Acknowledgments
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