Meiotic analysis in a natural autotetraploid of Phytolacca acinosa Roxb

• Farooq Umer

  Department of Botany, Punjabi University

• Lovleen

  Department of Botany, Punjabi University

• Saggoo Manjit Inder Singh

  Department of Botany, Punjabi University

書誌事項

タイトル別名

• Meiotic analysis in a natural autotetraploid of <i>Phytolacca acinosa</i> Roxb.

抄録

Phytolacca acinosa (Phytolaccaceae) is cytologically worked out for the first time from Tangmarg area of Kashmir, India. The tetraploid chromosome count of 2n=36 from the present study represents a new cytotype for the species from India. The plant shows the case of an autotetraploid as it is characterised by multivalent formation during meiosis. A total of 55.89% of the chromosomes were involved in multivalent formation (quadrivalent and trivalents) while as 12.15% remained as univalents. These multivalents caused meiotic irregularities such as unoriented chromosomes, laggards and bridges at different stages of meiosis. Microsporogenesis was also abnormal ultimately resulting in reduced pollen fertility 46.78% and lead to the formation of heterogenous sized pollen grains.

収録刊行物

• Chromosome Science

  Chromosome Science 14 (3+4), 63-66, 2011

  一般社団法人 染色体学会

キーワード

• <i>Phytolacca acinosa</i>
• Meiosis
• Autotetraploid

詳細情報

• CRID: 1390282679544909824
• NII論文ID: 10031139045
• NII書誌ID: AA11163057
• DOI: 10.11352/scr.14.63
• ISSN: 21850852
• ISSN: 13441051
• NDL書誌ID: 023744749
• Web Site: http://id.ndl.go.jp/bib/023744749
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023744749
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可