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Phenotypes Associated with This Genotype
Genotype
MGI:3040183
Allelic
Composition
Cxcl12tm1Tng/Cxcl12tm1Tng
Genetic
Background
involves: 129P2/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cxcl12tm1Tng mutation (1 available); any Cxcl12 mutation (24 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• mice exhibit a failure of nerve-vessel alignment in developing limb skin compared with wild-type mice
• however, vascular density is normal

mortality/aging
• about half of the homozygous embryos die between E15.5 and E18.5
• homozygotes die within 1 hour of birth

cardiovascular system
• mice exhibit a failure of nerve-vessel alignment in developing limb skin compared with wild-type mice
• however, vascular density is normal
• the large vessels of the stomach arising from the mesenchymal vessels are absent
• the small vascular network that surrounds the stomach and the vasculature of other organs are normal
• disorganized branching patterns in developing limb skin
• reduced smooth muscle cell coverage of small diameter branched vessels
• however, coverage of large diameter veins is normal
• homozygotes have a defect in the membranous portion of the ventricular septum

hematopoietic system
• pro-B cell numbers are severely reduced in the fetal livers of mutants compared to wild-type mice
• at E18.5 in the fetal liver, myelopoiesis is reduced identical to the phenotype in Cxcr4tm1Qma homozygotes
• at E18.5, a marked reduction in myeloid cells is also seen in the spleen and myeloid cells are virtually absent from the bone marrow
• on E17.5 hematopoietic cells are virtually absent from the bone marrow (J:34750)
• B-cell lymphopoiesis is also absent in the bone marrow (J:34750)
• at E18.5, myeloid cells are virtually absent from the bone marrow (J:49070)
• by E16.5 pre-B cell numbers are severely reduced in the fetal livers of mutants compared to wild-type mice

nervous system
N
• mice exhibit normal innervation accompanied by migrating Schwann cells
• at E18.5, the cerebellum is disorganized
• at E18.5, the external granule cell layer is attenuated

immune system
• pro-B cell numbers are severely reduced in the fetal livers of mutants compared to wild-type mice
• at E18.5 in the fetal liver, myelopoiesis is reduced identical to the phenotype in Cxcr4tm1Qma homozygotes
• at E18.5, a marked reduction in myeloid cells is also seen in the spleen and myeloid cells are virtually absent from the bone marrow
• by E16.5 pre-B cell numbers are severely reduced in the fetal livers of mutants compared to wild-type mice

muscle
• reduced smooth muscle cell coverage of small diameter branched vessels
• however, coverage of large diameter veins is normal


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
04/30/2024
MGI 6.23
The Jackson Laboratory