Anomalous Chromosomal Behaviour and Chromosomal Data in Some Members of Subclass Gamopetalae from District Hamirpur (H. P.), India

• Gupta Raghbir Chand

  Department of Botany, Punjabi University

• Kumari Kamlesh

  Department of Botany, Punjabi University

• Kaur Kuljit

  Department of Botany, Punjabi University

• Singh Vijay

  Department of Botany, Punjabi University

抄録

The present study pertains to the cytomorphology of 19 species belonging to nine families of the subclass Gamopetalae from Hamirpur district (H. P.). Out of these, 5 species are new or varied chromosomes reports. Campanula benthamii (2n=2x=28) and Leucas hyssopifolia (2n=2x=22) are the first ever chromosome counts for the species. Spilanthes acmella (2n=6x=78) and Borreria articularis (2n=4x=52) are varied cytotypes. Meanwhile, the B chromosome is reported for the first time in Leucas lanata (2n=22+0-1B). Almost all of the accessions (with disparity in percentage) show laggards, chromosome stickiness and cytomixis from early prophase to telophase-II, leading to the formation of aneuploid cells or meiocytes with double the normal chromosome number. Such meiotic abnormalities produce unreduced pollen grains and reduce pollen viability.

収録刊行物

• ＣＹＴＯＬＯＧＩＡ

  ＣＹＴＯＬＯＧＩＡ 81 (1), 25-34, 2016

  公益財団法人 日本メンデル協会

キーワード

• Cytology
• Gamopetalae
• Hamirpur
• Meiotic abnormality

詳細情報

• CRID: 1390001204110708352
• NII論文ID: 130005143747
• DOI: 10.1508/cytologia.81.25
• ISSN: 13487019
• ISSN: 00114545
• Web Site: https://www.jstage.jst.go.jp/article/cytologia/81/1/81_25/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可