STRUCTURAL REARRANGEMENTS OF CHROMOSOMES IN THE DOMESTIC CHICKEN: EXPERIMENTAL PRODUCTION BY X-IRRADIATION OF SPERMATOZOA

Publisher Website
Google Scholar
Abstract
In order to produce chicks heterozygous for structural aberrations of chromosomes, 67 hens were inseminated with semen that was exposed to 1200 R of X-rays. A sample of 204 chicks was hatched and survived. Among these, 18 (8.9%) contained rearrangements comprising 19 translocations and 1 pericentric inversion. All 10 males and 8 females heterozygrous for rearrangements were fertile and transmitted these rearrangements to approximately half their hatched progeny. Each of the major chromosomes of the chicken karyotype, except number 6, was involved in one or more of the translocations. The pericentric inversion was of a segment of chromosome number 2.