Strain Name: |
B6C3Fe a/a-Relnrl/J |
|---|---|
Stock Number: |
000235 |
Availability: | Repository- Live |
Price and Supply Information | |
General Terms and Conditions |
| Former Name |
B6C3Fe-a/a-Relnrl/+ (Changed: 15-DEC-04
) |
| Genes & Alleles | Reln; Relnrl; a; |
Type JAX® GEMM® Strain - Mutant Strain Additional information on JAX® GEMM® Strains. Type JAX® GEMM® Strain - Spontaneous Mutation Mating System Backcross-Intercross (Female x Male) TJL Breeding Summary: homozygote x B6C3FeF1 a/a then heterozygote x heterozygote Species laboratory mouse Generation N62 (23-JAN-08) Appearance
black, ataxic
Related Genotype: a/a Relnrl/Relnrl
black, unaffected
Related Genotype: a/a +/? or a/a Relnrl/+Strain Description
Mice homozygous for the reeler (Relnrl) mutation exhibit an ataxic gait, dystonic posture and tremors starting around 2 weeks of age. These mutants are incapable of maintaining their hindquarters upright and often fall over during locomotor activity. Moreover, viability and fertility are greatly reduced, especially when the gene is carried on an inbred genetic background. Heterozygotes are visually indistinguishable from wildtype controls. Neuropathies characteristic of Relnrl/Relnrl mutants include a failure of neuronal layer formation in laminated brain regions during development. Neuronal positioning is abnormal within cerebellar, cerebral and hippocampal cortices. The behavioral phenotype is primarily attributed to the severe hypoplasia of the cerebellum, which lacks foliation. Here, there are reduced numbers of granule and Purkinje cells and these cells are aberrantly dispersed among the layers. In the Reln-deficient neocortex, neurons normally destined to migrate past the subplate remain confined to deeper nuclei, thus ablating normal cortical layer formation. Similarly, pyramidal and granule cells of the developing hippocampus are scattered throughout the hippocampal tracts causing gross disorganization. RELN is required for normal spinal cord formation since migration of sympathetic preganglionic neurons in the intermediolateral column becomes disrupted in developing Relnrl/Relnrl mice. While somatic motor neurons and cholinergic interneurons are positioned normally in the Relnrl/Relnrl spinal cord, parasympathetic and sympathetic preganglionic neurons migrate medially past their normal destinations, indicating that RELN may act in a cell-specific manner. Neurons are also found abnormally positioned in the facial nucleus, inferior olivary complex, and mesencephalic trigeminal nucleus of affected reeler mutants. A RELN deficiency additionally results in an alteration in the structure and function of retinal synaptic circuitry. There is a reduction in the number of rod bipolar cells and physiologic responsiveness is compromised. Specifically, electroretinography analysis demonstrated a reduction in rod b-wave amplitudes. RELN may also play a role in the development of immune function since T-cell and macrophage function are suppressed in Relnrl/Relnrl mutants. Taken together, the data suggest that RELN functions in the extracellular matrix as a patterning signal for postmitotic neuronal migration along radial glial cell pathways. It may alternatively function to modulate neuron-neuron adhesivity and/or stability. Severe defects in neuronal cell migration underlie general lissencephalic disorders that affect humans. Therefore, the reeler mice may serve as a murine model for such neuronal ectopia disorders. Additionally, mice heterozygous for the Relnrl mutation are currently being pursued as a model for dopamine-related pathophysiological disorders such as schizophrenia. These Relnrl/+ mice exhibit a reduction in 1) the number of tryrosine hydroxylase-immunoreactive cell bodies, 2) tyrosine hydroxylase and dopamine transporter immunoreactivity, 3) tyrosine hydroxylase and D2 dopamine receptor mRNA levels in the mesolimbic dopamine system, and 4) oxytocin receptors in the piriform cortex, neocortex, retrosplenial cortex and certain regions of the hippocampus (reviewed by Rice and Curran, 2001, D'Arcangelo and Curran, 1998, and Hatten, 1999; Falconer, 1951; Soriano et al., 1997; Hunter-Schaedle, 1997; Caviness and Rakic, 1978; Caviness, 1982; Caviness et al., 1972; Rice et al., 2001; Yip et al., 2000; Phelps et al., 2002; Ballmaier et al., 2002; Liu et al., 2005).
Mammalian Phenotype Terms assigned by genotype |
| Allele Symbol | Relnrl | ||
|---|---|---|---|
| Allele Name | reeler | ||
| Common Name(s) | rl; rl-; rlJ; | ||
| Strain of Origin | "snowy-bellied" stock and unspecified inbred strain | ||
| Gene Symbol and Name | Reln, reelin | ||
| Chromosome | 5 | ||
| Gene Common Name(s) | PRO1598; RL; Reelen; reeler; rl; | ||
| General Note | Relnrl, reeler, recessive. The reeler mutation was identified by Falconer (J:13038) as a spontaneous mutation in a mildly inbred stock. Reeler homozygotes are unable to keep their hindquarters upright and frequently fall over on their sides when walking or running. Viability and fertility are much reduced, particularly when the gene is on an inbred genetic background, but viability is greatly improved on a hybrid background, and an occasional female or rarely a male may breed (J:5312). Healthyreeler mice have fairly normal behavior except for difficulties in locomotion (J:5359). The neuropathology of Relnrl/Relnrl mice has been studied very extensively. These studies were summarized and critically reviewed by Goffinet (J:12281). Briefly, the cerebellum is greatly reduced in size, and the typical organization and lamination of the cerebellar cortex, the cerebral cortex, and the hippocampus are altered. Abnormal arrangement of neurons is also seen in other brain structures. Autoradiographic studies of development of the cerebral cortex in reelers have shown that the different classes of neurons take their origin from the ependymal layer at the normal time but migrate abnormally and come to rest in abnormal relations to each other (J:12728). The earliest cortical neurons may be overly adhesive and may block migration of later neurons (J:26896). The abnormal arrangement of neurons in other parts of the brain is the result of a similar abnormal pattern of migration. In spite of abnormal location of the neurons and also their greatly reduced number in the cerebellum, relatively normal cell connections are established. Chimeras produced by fusion between Relnrl/Relnrl and +/+ embryos indicated that factorsextrinsic to the abnormally positioned Purkinje cells were defective in reeler (J:15345). | ||
| Molecular Note | This allele comprises, minimally, a 150 kd deletion between D5Mit61 and D5Mit72. [MGI Ref ID J:24458] | ||
| Allele Symbol | a | ||
| Allele Name | nonagouti | ||
| Allele | Control | |
|---|---|---|
| Relnrl | Untyped from the colony | |
| Considerations for Choosing Controls | ||
| Control Pricing Information for JAX® GEMM® Strains | ||
| Diet Information | LabDiet® 5K52/5K67 |
|---|
Strains carrying a allele
View Strains carrying a (102 strains)
Strains carrying other alleles of Reln
005250 B6;129S2-Relnrl-4J/J 005744 C57BL/6J-Relnrl-6J/J 007892 C57BL/6J-Relnrl-7J/J View Strains carrying other alleles of Reln (3 strains)
Strains carrying other alleles of a
View Strains carrying other alleles of a (67 strains)
Room Number FGB29
Relnrl related
Mouse/Human Gene Homologs
autosomal recessive lissencephaly
Neurobiology Research
Ataxia (Movement) Defects
Cerebellar Defects
Cortical Defects
| Strain Name: | B6C3Fe a/a-Relnrl/J |
| Stock Number: | 000235 |
IMPORTANT NOTE: Prices are based on shipping destination. The shipping destinations are:
| Price(s) in US dollars ($) | Genotype(s) Provided | ||||
|---|---|---|---|---|---|
| Individual Mouse Price | $166.70 | Heterozygous for Relnrl | |||
| Individual Mouse Price | $264.30 | Homozygous for Relnrl | |||
| Pair | $333.40 | Heterozygous for Relnrl x Heterozygous for Relnrl | |||
| Standard Supply | Repository-Live. A collection of over 1000 strains maintained as live colonies. Individual colonies are sized to meet current customer demand. Delivery for orders of 10 mice or less ranges on average from one to eight weeks; mice are generally shipped between four to six weeks of age with a maximum shipping age of ~nine weeks. Colony sizes do not generally support stringent age specifications for large volumes of mice; however custom orders and larger quantities of mice are easily arranged. Estimated ship dates for all orders provided within 48 hours of order placement. |
|---|---|
| Supply Notes |
Histology and Tissue Collection Services are available for all JAX® Mice strains. For more information, please contact Customer Service at orderquest@jax.org or 1-207-288-5845. Usually shipped between four and eight weeks of age. This strain is included in the Mouse Mutant Resource collection. Genomic DNA is available for this strain from the Mouse DNA Resource. |
| Licensing | See General Terms and Conditions below |
| Control Information | View Control Information in Strain Details. View Control Pricing Information for JAX® Strains. |
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