Cytogenetic Studies in Hybrids from a Pair of Sibling Drosophila Species

  • Park, Yung-Hyun (Department of Oriental Medicine, Dongeui University, Pusan 614-053) ;
  • Kim, Heui-Soo (Department of Biology, Pusan National University, Pusan 609-735) ;
  • Lee, Won-Ho (Corresponding author, Department of Biology, Pusan National University, Pusan 609-735)
  • Published : 2000.04.01

Abstract

The cytogenetic pattern of autosome and sex chromiosome after Giemas staining were examined in the hybrids between two sibling species, Drosophila melanogaster and D. simulans. The analysis of karyotype in the hybrid female between D. melanogaster females and D. simulans males could be easily distinguished the characteriation of eight chromosomes from bothe species, especially with regard to X chromosomes. The lagging duplication of Y chromosome was investigated in the interspecific hybrid males from the cross between female of Drosophila melanogaster(OR) and males of D. simulasn (K18). On the other hand, the X chromatids of D. simulans were loosely separated in the early stage of anaphase.

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