Chromosome Synapsis and Recombination during Meiotic Division in Gynogenetic Triploid Ginbuna, Carassius auratus langsdorfii

Abstract

Electron microscope examinations of primary oocytes of gynogenetic triploid ginbuna (Caras sius auratus langsdorfii) and diploid gengoroubuna (Carassius auratus cuvieri) were carried out. Typical synaptonemal complexes were observed in both subspecies. In addition, clear differences in PGM-A electrophoretic patterns between a female parent ginbuna and her offspring were detected . It was concluded that synapsis and recombination occur between at least some homologous chromosomes in triploid ginbuna.