Spinal deformity in triploid grass carp ctenopharyngodon idella (Valenciennes)

Abstract

From mid-2004 to mid-2005, several grass carp, Ctenophayngodon idella (Valenciennes), showing evidence of spinal deformity were presented to the Aquatic Animal Health Program, Cornell University. The carp were from three separate locations in New York State. The first case involved several fish from a natural body of water in the Catskill Mountain region of south-eastern New York State. The second was a single affected individual from a private pond in the Fingerlakes region of Central New York State. The third was a single individual from the Cold Springs Harbor Fish Hatchery, Cold Springs Harbor, Long Island. All fish were at least 7 years of age. Radiographs and computed tomography (CT) scans revealed the deformities to be of bony origin. The spinal deformities were characterized by variable amounts of kyphosis, scoliosis and rotation. While it is not possible to determine the specific cause(s) of the lesions, we consider a genetic component as a likely contributor to the observed pathology.

High Rate of Deformed Larvae among Gynogenetic Brown Trout (Salmo trutta m. fario) Doubled Haploids

“…However, the knowledge about the genetic background of the spinal deformities in fish is still limited. A genetic component contributing to the spinal deformities in the grass carp (Ctenopharyngodon idella) has been proposed [32]. In zebrafish, one of the collagen types (XXVI) has been found to be crucial for the notochord morphogenesis and skeletogenesis.…”

Spinal deformities in a wild line of Poecilia wingei bred in captivity: report of cases and review of the literature

“…Finally, a genetic basis has also been proposed for spinal malformations [50][51][52][53][54][55] , since spontaneous spinal curvature mutants exist. Particularly, the so-called Mutant Guppy (P. reticulata) Syndrome Curveback, characterized by a primary sagittal lordosis with some individual exhibiting posterior kyphosis and /or coronal deviation, appears to be a possible animal model to study the pathogenesis of human idiopathic scoliosis.…”

First report of ovarian epidermoid cyst in a teleost

“…), cystic follicles enveloped with stratified non‐keratinized squamous epithelium (Domínguez‐Petit, Alonso‐Fernández & Saborido‐Rey ) and dysgerminoma surrounding an expansile seminoma (Grimmett et al . ) have also been reported.…”