A First Chromosomal and Nucleolar Organizer Regions (NORs) Analyses of Chevey’s Sheetfish, <i>Micronema cheveyi</i> (Siluriformes, Siluridae)

• Pinthong Krit

  Department of Fundamental Science, Faculty of Science and Technology, Surindra Rajabhat University

• Supiwong Weerayuth

  Faculty of Applied Science and Engineering, Khon Kaen University

• Simporn Baramate

  Toxic Substances in Livestock and Aquatic Animals Research Group, Department of Biology, Faculty of Science, Khon Kaen University

• Chooseangjaew Supatcha

  Marine Shellfish Breeding Research Unit, Department of Marine Science, Faculty of Science and Fisheries Technology, Rajamangala University of Technology Srivijaya

• Kakampuy Wanpen

  Faculty of Agriculture and Technology, Nakhon Phanom University

• Tanomtong Alongklod

  Toxic Substances in Livestock and Aquatic Animals Research Group, Department of Biology, Faculty of Science, Khon Kaen University

抄録

A first report on nucleolar organizer regions (NORs) and karyological analyses in the Chevey’s sheetfish (Micronema cheveyi) from the Chao Phraya Basin, Thailand, was performed. The mitotic chromosome preparation was directly prepared from kidney cells of ten male and eight female specimens. Conventional staining and Ag-NOR banding techniques were applied to stain the chromosomes. The results shown that the diploid chromosome number of M. cheveyi was 2n=78 and the fundamental numbers (NF) were 96 in both sexes. The karyotype composed of 4 large metacentric, 6 large submetacentric, 10 large acrocentric, 32 medium telocentric, and 26 small telocentric chromosomes. No heteromorphic sex chromosomes were revealed. In addition, the telomeric NORs were clearly observed at the short arm adjacent to the telomere of the third chromosome pair (submetacentric chromosomes). The karyotype formula for M. cheveyi is as follows: <img align="middle" src="./Graphics/abst-math1.png"/>

収録刊行物

• ＣＹＴＯＬＯＧＩＡ

  ＣＹＴＯＬＯＧＩＡ 82 (4), 435-441, 2017

  公益財団法人 日本メンデル協会

キーワード

• <i>Micronema cheveyi</i>
• Chromosome
• Nucleolar organizer regions (NORs)
• Karyotype

詳細情報

• CRID: 1390282679087587712
• NII論文ID: 130006250980
• DOI: 10.1508/cytologia.82.435
• ISSN: 13487019
• ISSN: 00114545
• Web Site: https://www.jstage.jst.go.jp/article/cytologia/82/4/82_MS1873/_pdf
• 本文言語コード: en
• データソース種別:
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  • CiNii Articles
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