OMIA 001997-9986 : Achondroplasia-2 in Oryctolagus cuniculus |
As summarised by Robinson (1958, p. 341), "The present case differs from . . . [Achondroplasia-1; OMIA 001996-9986] in several respects. The animals are fully viable and appear quite normal at birth but when adult have the characteristic short legs. Externally the achondroplasia can be recognised by a small cartilaginous papilla arising at the base of the ear. This is present at hirth but is not fully detectable until the ear flap opens at approximately the sixth day and the papilla separates from the remainder of the ear. X-ray plates reveal abnormalities of the leg bones which at a later age may result in crippled legs and a peculiar undulating gait. Dislocations of the hip or knee may appear and become more pronounced as maternity is reached, interfering with normal and successful mating. However, it has been possible to produce young from one [homozygous] female by a normal male. Ear carriage is modified so that it tends to project downward and outward instead of upward and backward. SAWIN (1955) notes that the heterozygote . . . possesses a remnant of the papilla in the same relative position at the ear base."
References
Note: the references are listed in reverse chronological order (from the most recent year to the earliest year), and alphabetically by first author within a year.
1965 | Sawin, P.B., Trask, M. : | |
Morphogenetic studies of the rabbit. XXXV. Pleiotropic effects of the Dachs gene and the gradient growth pattern. J Morphol 117:87-114, 1965. Pubmed reference: 14336226. DOI: 10.1002/jmor.1051170106. | ||
1964 | Crary, D.D. : | |
Development of the external ear in the dachs rabbit. Anat Rec 150:441-7, 1964. Pubmed reference: 14248315. | ||
1963 | Lamb, N.P., Sawin, P.B. : | |
Morphogenetic studies of the rabbit. XXXIII. Cartilages and muscles of the external ear as affected by the dachs gene (Da). Am J Anat 113:365-88, 1963. Pubmed reference: 14072363. DOI: 10.1002/aja.1001130303. | ||
1962 | Lamb, N.P., Sawin, P.B. : | |
Morphology of the external ear of the dachs (chondrodystrophy) rabbit American Zoologist 2:421-422, 1962. | ||
Sawin, P.B., Ranlett, M., Crary, D.D. : | ||
Morphogenetic studies of the rabbit. XXIX. Accessory ossification centers at the occipitovertebral articulation of the dachs (chondrodystrophy) rabbit. Am J Anat 111:239-57, 1962. Pubmed reference: 13986942. DOI: 10.1002/aja.1001110302. | ||
1959 | Sawin, P.B., Crary, D.D., Webster, J. : | |
Morphogenetic Studies of the Rabbit. XXIII. the Effects of the Dachs Gene Da (Chondrodystrophy) upon Linear and Lateral Growth of the Skeleton as Influenced in Time. Genetics 44:609-24, 1959. Pubmed reference: 17247845. | ||
Sawin, P.B., Ranlett, M., Crary, D.D. : | ||
Morphogenetic studies of the rabbit. XXV. The spheno-occipital synchondrosis of the dachs (chondrodystrophy) rabbit. Am J Anat 105:257-80, 1959. Pubmed reference: 14442107. DOI: 10.1002/aja.1001050206. | ||
1958 | Crary, D.D., Sawin, P.B., Atkinson, N. : | |
Morphogenetic studies of the rabbit. XXI. The nature of disproportionate dwarfism induced by the Da gene revealed by the early fetal ossification pattern American Journal of Anatomy 103:69-97, 1958. Pubmed reference: 13626838. DOI: 10.1002/aja.1001030104. | ||
Robinson, R. : | ||
Genetic studies of the rabbit. Bibliographia Genetica 17:229–558, 1958. | ||
1955 | Sawin, P.B. : | |
Recent genetics of the domestic rabbit. Adv Genet 7:183-226, 1955. Pubmed reference: 13258375. | ||
1952 | Crary, D.D., Sawin, P.B. : | |
A second achondroplasia in the rabbit Journal of Heredity 43:255-259, 1952. |
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- Created by Frank Nicholas on 28 Apr 2016
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- Changed by Frank Nicholas on 03 May 2016