The mouse rib-vertebrae mutation disrupts anterior-posterior somite patterning and genetically interacts with a Delta1 null allele.

Abstract excerpt

Rib-vertebrae (rv) is an autosomal recessive mutation in mouse that affects the morphogenesis of the vertebral column. Axial skeleton defects vary along the anterior-posterior body axis, and include split vertebrae and neural arches, and fusions of adjacent segments. Here, we show that defective somite patterning underlies the vertebral malformations and altered Notch signaling may contribute to the phenotype....

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