Lampbrush Chromosomes of an Allotriploid Frog Produced from(Rana brevipoda×Rana nigromaculata)♀×Rana breviooda♂(短報)
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概要
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A female allotriploid frog was produced from a female diploid hybrid, Rana brevipoda♀×Rana nigromaculata♂, by mating with a male Rana brevipoda. The lampbrush chromosomes were examined in order to clarify their origin and behavior at the first meiotic division. Twenty-six chromosomes from R. brevipoda and 13 chromosomes from R. nigromaculata were observed. In most oocytes, only one to five triplets of homologous chromosomes formed trivalents, while the others formed bivalents and univalents of the same numbers. These bivalent and univalent chromosomes came from R. brevipoda and R. nigromaculata, respectively. The remaining oocytes contained 13 bivalents from R. brevipoda and 13 univalents from R. nigromaculata.
- 社団法人日本動物学会の論文
- 1978-03-25
著者
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OHTANI Hiromi
Laboratory for Amphibian Biology, Faculty of Science, Hiroshima University
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Ohtani Hiromi
Laboratory For Amphibian Biology Faculty Of Science Hiroshima University
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