Cytomixis and Associated Abnormalities during Male Meiosis in Lindelofia longiflora var. falconeri (Boraginaceae)

DOI 被引用文献2件 参考文献36件

書誌事項

タイトル別名
  • Cytomixis and Associated Abnormalities during Male Meiosis in <i>Lindelofia longiflora</i> var. <i>falconeri </i>(Boraginaceae)

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説明

Detailed male meiotic studies were made in Lindelofia longiflora (Royle ex Benth.) Baill. var. falconeri (Cl.) Brand (Family: Boraginaceae) from the cold deserts of Pangi Valley, Chamba District (Himachal Pradesh) in India. The meiotic course in some of the individuals was observed to be highly abnormal which include cytomixis involving chromatin transfer among meiocytes, spindle irregularities, chromatin stickiness and mutlipolar PMCs, resulting in abnormal sporads as dyads, triads, polyads and tetrads with micronuclei. The products of such sporads result in high pollen sterility (77%) and variable-sized pollen grains. As a consequence of cytomixis, hyperploid (73.04%), hypoploid (18.59%) and enucleated PMCs (8.37%) are resulted. The enucleated PMCs may degenerate during the later stages of meiosis while hypo- and hyperploid PMCs yielded pollen grains of variable sizes and sterile pollen grains. The phenomenon of cytomixis and associated meiotic irregularities seem to have been caused due to low temperature stress conditions prevailing in the area.

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詳細情報 詳細情報について

  • CRID
    1390001204109065984
  • NII論文ID
    130004801643
  • DOI
    10.1508/cytologia.79.535
  • ISSN
    13487019
    00114545
  • 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

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