A Karyotype Study on the Drosophila robusta Species-Group(Diptera : Drosophilidae)

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概要

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• The karyotypes of the Drosophila robusta species-group, especially its species-subgroup okadai, were studied by using brain cell-Giemsa staining method. Drosophila gani possessed a diploid number of 12 chromosomes, comprising 4 pairs of metacentric and 2 pairs of acrocentric chromosomes, and both D. okadai and D. neokadai did 2n=12, with 3 pairs of metacentrics, 2 pairs of acrocentrics and 1 pair of microchromosomes. The okadai subgroup characteristically retained a midele-sized acrocentric X chromosome, which implies that this subgroup may occupy an ancestral position for the robusta group.

• 社団法人日本動物学会の論文

著者

• Watabe Hide-aki

  Biological Laboratory Sapporo College Hokkaido University Of Education

• Watabe Hideaki

  Biological Laboratory Hokkaido University Of Education

• Aotsuka Tadashi

  Department Of Biological Science Graduate School Of Sciences Tokyo Metropolitan University

• Park Jecheol

  Department of Biology, Tokyo Metropolitan University

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