Updated: Dec. 30 (2023)
Curly Vibrissae
Curly Vibrissae, cv/cv
Two copies of the recessive Curly Vibrissae.
Chromosome: Unknown
RVG description:
"Mutant individuals can be easily identified at birth by their very short vibrissae. While the vibrissae grew slowly as the pups mature, they gradually assume a curly appearance. The number of vibrissae remained smaller than the normal. Matured mutants had a small number of short and/or curly vibrissae around the nose. The vibrissae on the cheek (buccal v.) and/or above the eyes (supraorbital v.) were also short and curled. There was no vibrissa on the lower mandible (submental and intermandibular v.). Initial emergence of pelage hairs was normal. However, subsequent overall hair growth on the body was slow and extremely retarded around the eyes, lower lip, nose and distal end of fore and hind limbs, presenting a unique appearance from lactation through puberty. The outer hairs (long pelage hairs) were straight. The outer hairs reached nearly normal length at 10 weeks of age, but head hair remained significantly shorter than normal WIET rats. Microscopic observations revealed that mutant pelage hairs looked slightly translucent, probably due to misalignment and low density of inner cuticles. These findings might also explain the silky gloss of mutant fur. Adult mutant rats often exhibit loss of hairs on the head and/or back. Lactating females usually lose their abdominal hairs" (source: "Curly vibrissae, a new mutation in the Wistar-derived rat")
Two copies of the recessive Curly Vibrissae.
Chromosome: Unknown
RVG description:
"Mutant individuals can be easily identified at birth by their very short vibrissae. While the vibrissae grew slowly as the pups mature, they gradually assume a curly appearance. The number of vibrissae remained smaller than the normal. Matured mutants had a small number of short and/or curly vibrissae around the nose. The vibrissae on the cheek (buccal v.) and/or above the eyes (supraorbital v.) were also short and curled. There was no vibrissa on the lower mandible (submental and intermandibular v.). Initial emergence of pelage hairs was normal. However, subsequent overall hair growth on the body was slow and extremely retarded around the eyes, lower lip, nose and distal end of fore and hind limbs, presenting a unique appearance from lactation through puberty. The outer hairs (long pelage hairs) were straight. The outer hairs reached nearly normal length at 10 weeks of age, but head hair remained significantly shorter than normal WIET rats. Microscopic observations revealed that mutant pelage hairs looked slightly translucent, probably due to misalignment and low density of inner cuticles. These findings might also explain the silky gloss of mutant fur. Adult mutant rats often exhibit loss of hairs on the head and/or back. Lactating females usually lose their abdominal hairs" (source: "Curly vibrissae, a new mutation in the Wistar-derived rat")