A new pair of primers for molecular sexing of the Pallas squirrel, Callosciurus erythraeus, and variation in fetal sex ratio
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概要
- 論文の詳細を見る
The Pallas squirrel, Callosciurus erythraeus, is an introduced species to Japan where a male-biased sex ratio has been reported at the weaning stage in the field. For further examination of their earlier (fetal) sex ratio, a new PCR primer set was designed to amplify a portion of the Sry (sex-determining region Y) gene. This successfully produced sex-specific PCR profiles for known-sex adult samples. Using this technique we could determine the sex of fetal samples dissected out of mothers shot as pests on Izu-Oshima Island, Tokyo, Japan. The fetal sex ratio was significantly male-biased in 2000, but not in other years. The sex ratio tending towards male-bias in this squirrel is discussed from a local resource competition theory.
- 2006-12-01
著者
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田村 典子
独立行政法人森林総合研究所多摩森林科学園
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田村 典子
森林総合研 多摩森林科学園
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田村 典子
多摩森林科学園
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田村 典子
関西大学文学部
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Tamura N
Forestry And Forest Products Res. Inst. Hachioji Jpn
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Tamura N
Tama Forest Science Garden
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Hayashi Fumio
Tokyo Metropolitan Univ. Tokyo Jpn
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Tamura Noriko
Tama Forest Sci. Garden Ffpri
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Tamura Noriko
Tama Forest Science Garden Ffpri
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Hayashi Fumio
Department Of Biological Science Tokyo Metropolitan University
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Tamura Noriko
Tama Forest Science Garden Forestry And Forest Products Research Institute
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Tamura Noriko
Tama Forest Science Garden
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KUSAHARA Miki
Department of Biology, Tokyo Metropolitan University
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KAMIMURA Yoshitaka
Department of Biology, Tokyo Metropolitan University
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Kusahara Miki
Department Of Biology Tokyo Metropolitan University
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Kamimura Yoshitaka
Department Of Biology Tokyo Metropolitan University
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Kamimura Yoshitaka
Department Of Biology Keio University
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TAMURA Noriko
<I>Department of Biology, Faculty of Science, Tokyo Metropolitan University</I>
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