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She Chaowen, Song Yunchun, Liu Lihua. STUDIES ON KARYOTYPE AND G-BANDING PATTERNS IN PSOPHOCARPUS TETRAGONOLOBUS (L.) DC[J]. Plant Science Journal, 1998, 16(1): 23-26.
Citation: She Chaowen, Song Yunchun, Liu Lihua. STUDIES ON KARYOTYPE AND G-BANDING PATTERNS IN PSOPHOCARPUS TETRAGONOLOBUS (L.) DC[J]. Plant Science Journal, 1998, 16(1): 23-26.
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STUDIES ON KARYOTYPE AND G-BANDING PATTERNS IN PSOPHOCARPUS TETRAGONOLOBUS (L.) DC

  • 1.

    Huaihua Teachers' College huaihua, Wuhan 418008

  • 2.

    College of life Science, Wuban University Hunan 430072

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  • Received Date: August 26, 1996
  • Revised Date: August 03, 1997
  • Published Date: January 23, 1998
    Graphical Abstract
    • Abstract
  • Clear G-bands which were closely adjacent,multiple and distributed along thechromosomes were showed in the mitotic metaphase chromosomes of Psophocarpustetragonolobus (L.) DC by the advanced ASG method. The karyotype and G-banding patterns were analysed. Its karyotype formula is 2n= 18= 4m + 14sm (2SAT), and karyotype asymmetry belongs to 2 B type. The number,position of distribution,staining de-gree of G-bands between homologous chromosomes are basically identical; but nonhomologous chromosomes are distinct in G-band patterns. So chromosome pairing for karyotype analysis could be carried out more accurately and nonhomologous chromosomescould be distinguished easily. The application of the advanced ASGmethod in karyotype analysis and G-banding and the polymorphisms of G-band patterns are discussed.
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