The Origin and Genetic Relationships of the Baikal Seal, Phoca sibirica, by Restriction Analysis of Mitochondrial DNA(Animal Diversity and Evolution)

スポンサーリンク

概要

• 論文の詳細を見る

• The origin and genetic relationships of the Baikal seal, Phoca sibirica, were studied by restriction fragment length polymorphism analysis of mitochondrial DNA (mtDNA). Using 17 different six-base recognition restriction endonucleases, we examined 98 Baikal seals, and two other related species, the ringed seal, P. hispida, (n=87), and the Caspian seal, P. caspica, (n=94). Analysis revealed the existence of 87 mtDNA haplotypes in the total of 279 specimens. The haplotypes of each species were divided into different clusters on a dendrogram obtained by UPGMA based on haplotype frequency and mtDNA base substitution. No common haplotypes were found among the species examined. The Baikal seal is much more closely related to the ringed seal than the Caspian seal. The amount of divergence suggested that an ancestor of the Baikal seal came down to the lake approximately 0.4 million years ago as was previously indicated by paleontological studies. The seals examined here showed lower variabilities.

• 社団法人日本動物学会の論文
• 2003-11-25

著者

• Grachev Mikhail

  Limnological Institute Russian Academy Of Science

• Sasaki Hiroyuki

  Graduate School of Fisheries, Hokkaido University

• Numachi Ken-ichi

  School of Marine Science and Technology, Tokai University

• Numachi Ken-ichi

  School Of Marine Science And Technology Tokai University

• Sasaki Hiroyuki

  Graduate School Of Fisheries Hokkaido University

関連論文

• The Origin and Genetic Relationships of the Baikal Seal, Phoca sibirica, by Restriction Analysis of Mitochondrial DNA(Animal Diversity and Evolution)
• Biological diversity in rare aquatic organisms

スポンサーリンク