Premeiotic chromosome doubling after genome elimination during spermatogenesis of the species hybrid Rana esculenta |
| |
Authors: | S Heppich H G Tunner J Greilhuber |
| |
Institution: | (1) Institutes of Botany and Zoology, University of Vienna, Vienna, Austria |
| |
Abstract: | Summary Gamete production in the hybridogenetic species hybrid Rana esculenta (Rana ridibunda X Rana lessonae) is preceded by a premeiotic elimination of the R. lessonae genome and subsequent duplication of the remaining R. ridibunda genome, so that only ridibunda chromosomes enter a quasi normal meiosis, and only ridibunda gametes are formed. This is demonstrated by differences in genome specific centromere fluorescence and electrophoretic patterns between somatic and gonadal tissue. |
| |
Keywords: | Rana hybrid Hybridogenesis Genome elimination Fluorescence Electrophoresis |
本文献已被 SpringerLink 等数据库收录! |