Gene-targeting studies of mammalian behavior: is it the mutation or the background genotype?
Abstract
Gene targeting to create null mutations in mice is a powerful new tool in biology which will allow the molecular dissection of complex phenotypes such as mammalian brain function, and learning and memory. However, the attempt to interpret the phenotypical changes which arise in null-mutant mice is subject to several caveats. For example, the ability to disrupt a single gene in a targeted manner might lead one to overlook the effects of other genes. Ignoring the genetic background might lead to misinterpretation of results: the present article will demonstrate that the phenotypical abnormalities attributed to the null mutation in several molecular neurobiological studies could simply result from the effects of background genes.
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129/Sv mice demonstrate behavioral defects such as the inability to perform the Morris water maze task.
“The 129/Sv mice demonstrate behavioral defects such as the inability to perform the Morris water maze task (Gerlai, 1996).”
From The essential role of hippocampal CA1 NMDA receptor-dependent synaptic plasticity in spatial memory. (1996) · cites this paper as Gerlai, 1996
ES cells from the mouse strain 129/Sv are commonly used to generate mutant mice.
“ES cells from the mouse strain 129/Sv are commonly used to generate the mutant mice (reviewed by Gerlai, 1996).”
From The essential role of hippocampal CA1 NMDA receptor-dependent synaptic plasticity in spatial memory. (1996) · cites this paper as Gerlai, 1996
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- Authors
- Gerlai, R.
- Affiliations
- Genentech (US)
- Corresponding author
- Gerlai, Robert
- ORCID
- Gerlai, Robert
- Venue
- Trends in Neurosciences
- Publisher
- Elsevier BV
- Published
- 1996-05
- Volume
- 19
- Issue
- 5
- Pages
- 177-181
- ISSN
- 0166-2236 (ISSN-L)
- OpenAlex
- W1977966461
- Cited by
- 881
- References
- 2
- Citations by year
- 2025: 5 · 2024: 2 · 2023: 3 · 2022: 9 · 2021: 5 · 2020: 8 · 2019: 7 · 2018: 9 · 2017: 13 · 2016: 12 · 2015: 16 · 2014: 14 · 2013: 19 · 2012: 21
- FWCI
- 10.63
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Trends in Neurosciences (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Animal Genetics and Reproduction
- Keywords
- gene targeting, null mutations, genetic background effects, mouse mutants, behavioral phenotypes, learning and memory, brain function, genetic interactions
- MeSH terms
- Animals, Behavior, Animal, Genotype, Genetic Linkage, Mice, Mutant Strains, Mutation, Reaction Time, Gene Targeting, Mice
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