A preliminary study on the genetic diversity of small populations of two flying squirrel species from Pakistan (Hylopetes fimbriatus and Petaurista petaurista albiventer), based on mitochondrial DNA control region sequences

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概要

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• We undertook a preliminary investigation on the population genetics of two flying squirrel species (Hylopetes fimbriatus and Petaurista petaurista albiventer) that are endemic to the northwestern Himalayan range. These species are distributed sympatrically, share similar ecological characteristics, and are confined to the Himalayan moist temperate forests ranging from 1350 to 3050 m elevation. To elucidate the genetic variability of small populations of these species, we determined the complete mitochondrial DNA control region sequence of H. fimbriatus (1109 bp) and P. petaurista albiventer (1051–1052 bp), collected at the Ayubia National Park of northern Pakistan. Haplotype and nucleotide diversities and average number of nucleotide differences among haplotypes of H. fimbriatus were similar to those of P. petaurista albiventer. However, transversional substitutions among haplotypes of H. fimbriatus were significantly greater than that of P. petaurista albiventer. This latter difference may have arisen from climatic changes during recent Pleistocene glaciations that differentially affected the distribution patterns of these two species. For instance, H. fimbriatus, which is more adaptive to colder and drier habitats, may have maintained a larger population base in the northwestern Himalayan range than P. petaurista albiventer. Alternatively, H. fimbriatus might have colonized the northwestern parts of the Himalayas earlier than P. petaurista albiventer, and may have had a longer evolutionary period to adapt to the cool mesic climate of this region.

• 日本哺乳類学会の論文
• 2004-06-01

著者

• 増田 隆一

  北海道大学創成科学共同研究機構

• 押田 龍夫

  帯広畜産大学野生動物管理学研究室

• 押田 龍夫

  北海道大学理学部附属動物染色体研究施設

• Shafique Chaudhry

  Department Of Zoology University Of Karachi

• Masuda R

  Hokkaido Univ. Sapporo Jpn

• Masuda Ryuichi

  Creative Research Initiative "sousei" Hokkaido University

• Masuda Ryuichi

  Hokkaido Univ. Sapporo Jpn

• Masuda Ryuichi

  Dep. Of Natural History Sciences Graduate School Of Sci. Hokkaido Univ. Sapporo

• Masuda Ryuichi

  Chromosome Research Unit Faculty Of Science Hokkaido University

• Masuda Ryuichi

  Laboratory Of Genetic Diversity Center For Advanced Science And Technology Hokkaido University

• Oshida T

  Laboratory Of Wildlife Ecology Obihiro University Of Agriculture And Veterinary Medicine

• Oshida Tatsuo

  Laboratory Of Wildlife Ecology Obihiro University Of Agriculture And Veterinary Medicine

• 押田 龍夫

  帯広畜産大学畜産生命科学研究部門野生動物管理学研究室

• Oshida Tatsuo

  Chromosome Research Unit Faculty Of Science Hokkaido Univerysity

• Oshida Tatsuo

  Chromosome Res. Unit Fac. Sci. Hokkaido Univ.

• BARKATI Sohail

  Department of Zoology, University of Karachi

• Barkati Sohail

  Department Of Zoology University Of Karachi

• Masuda Ryuichi

  Chromosome Research Unit Faculty Of Science And Division Of Biological Science Graduate School Of En

• Masuda Ryuichi

  Department Of Genome Dynamics Creative Research Initiative "sousei" Hokkaido University

• 増田 隆一

  北海道大学大学院理学研究院多様性生物学分野

• 押田 龍夫

  Laboratory Of Wildlife Ecology Obihiro University Of Agriculture And Veterinary Medicine

• OSHIDA Tatsuo

  Laboratory of Wildlife Biology, Obihiro University of Agriculture and Veterinary Medicine

• OSHIDA Tatsuo

  Laboratory of Molecular Ecology, Department of Biology, Tunghai University

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