Karyological relationships among four species and subspecies of Sorex revealed by differential staining techniques.
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- TADA Takashi
- <I>Department of Biology, Faculty of Science, Hirosaki University</I>
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- OBARA Yoshitaka
- <I>Department of Biology, Faculty of Science, Hirosaki University</I>
書誌事項
- タイトル別名
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- Karyological relationships among four s
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説明
Chromosomes of Sorex caecutiens shinto, S. c. saevus, S. unguiculatus and S. gracillimus were compared in detail based on the G and C-banding patterns, paying attention to the structural variations of their No. 5 chromosomes. The first three had the diploid number of 42, and carried prominent satellites on the short arms of the pairs Nos. 19 and 20, but the last one (2n=36) only on the short arms of No.17. These satellites seemed to function as active NORs, being differentially stained by the one-step silver-staining method which was applied only to S.c. shinto in the present study. The caecutiens complex and S. unguiculatus were almost identical in their G-banding pattern as well as in their chromosome constitution, except for the No.5 chromosomes slightly differing from one another in the arm ratio and/or G-banding pattern. These chromosomal variations could be explained by two kinds of pericentric inversion rearrangements. S. gracillimus was highly homologous in the G-banding pattern with the caecutiens complex and S. unguiculatus in spite of a marked differentiation in the karyotype, sharing the identical pattern of G-bands with S. unguiculatus in almost 92% of its total chromosome length. The pair No. 5 of S. gracillimus was identical in the G-banding pattern with that of S. unguiculatus. The phylogenetic relationships of these four species and subspecies of Sorex were briefly discussed from a karyosystematic viewpoint.
収録刊行物
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- Journal of the Mammalogical Society of Japan
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Journal of the Mammalogical Society of Japan 13 (1), 21-31, 1988
一般社団法人 日本哺乳類学会
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詳細情報 詳細情報について
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- CRID
- 1390282679650556800
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- NII論文ID
- 130004244479
- 40005336900
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- NII書誌ID
- AA1092271X
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- ISSN
- 18843948
- 09141855
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- NDL書誌ID
- 3185279
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可