Gynogenesis caused by ultraviolet irradiation of salmonid sperm

✍ Scribed by Chourrout, D.

• Publisher: John Wiley and Sons
• Year: 1982
• Tongue: English
• Weight: 477 KB
• Volume: 223
• Category: Article
• ISSN: 0022-104X
• DOI: 10.1002/jez.1402230209

✦ Synopsis

Abstract

Gynogenetic rainbow trout lines can be produced easily with the simple UV sperm irradiation technique detailed in this study. The dose effect on embryonic survival rate is called a pseudo “Hertwig effect” because of major differences with results of gamma irradiation: Some mixing of various karyotypes (from diploid to haploid number) were obtained with mean doses, probably because of the weak penetrating power of the ultraviolet rays. Irradiations lasting 4 minutes or more are required to produce homogeneous haploid progeny; heat shock applied to such fertilized eggs results in diploid fry of the maternal phenotype.