Polymorphism of Lampbrush Chromosomes in Japanese Populations of Rana nigromaculata

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概要

• 論文の詳細を見る

• The 13 pairs of the lampbrush chromosomes of R. nigromaculata are characterized by one to five landmarks situated at specific positions on the axis of each chromosome. In R. nigromaculata collected from 28 sites in Japan, eight chromosome pairs did not show any variations, whereas the remaining five pairs consisted of two forms of chromosome which differed in the number or type of the landmarks. The variations in chromosomal polymorphism indicated that Japanese R. nigromaculata has genetically differentiated into four groups which were formed by a break in the migration due perhaps to geographic obstacles and the expansion of new genetic materials provided from continental R. nigromaculata in the Wurm glacial stage. By comparing the distribution of the variations and the lampbrush chromosomes of continental R. nigromaculata, the history of the migration of R. nigromaculata into Japan is discussed.

• 社団法人日本動物学会の論文
• 1994-04-15

著者

• OHTANI Hiromi

  Laboratory for Amphibian Biology, Faculty of Science, Hiroshima University

• Ohtani H

  Hiroshima Univ. Hiroshima Jpn

• Ohtani Hiromi

  Laboratory For Amphibian Biology Faculty Of Science Hiroshima University

関連論文

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• Hybridogenetic Reproduction of Allotriploids between Japanese and European Pond Frogs(Developmental Biology)
• Detection of Chromosomes Bearing the Loci for Seven Kinds of Proteins in Japanese Pond Frogs
• Detection of Chromosomes Bearing the Loci for Blue and Olive Mutations in Rana nigromaculata
• Polymorphism of Lampbrush Chromosomes in Japanese Populations of Rana nigromaculata
• Lampbrush Chromosomes of an Allotriploid Frog Produced from(Rana brevipoda×Rana nigromaculata)♀×Rana breviooda♂(短報)
• Lampbrush Chromosomes of Rana nigromaculata, R. brevipoda, R. plancyi chosenica, R. p. fukienensis and their Reciprocal Hybrids
• Speciation of Japanese Pond Frogs Deduced from Lampbrush Chromosomes of their Diploid and Triploid Hybrids

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