Karyotype Analysis of Seven Varieties of Taro <i>Colocasia esculenta</i> (L.) Schott. from Bangladesh

  • S Parvin Department of Botany, University of Rajshahi, Rajshahi-6205, Bangladesh
  • G Kabir Department of Botany, University of Rajshahi, Rajshahi-6205, Bangladesh
  • MM Ud-Deen Department of Crop Science & Technology, University of Rajshahi, Rajshahi-6205, Bangladesh
  • JK Sarker Department of Crop Science & Technology, University of Rajshahi, Rajshahi-6205, Bangladesh
Keywords: Karyotype, Nuclear phenotype, Colocasia esculenta

Abstract

Nuclear and chromosome characteristics of seven varieties of Colocasia esculenta were studied. Interphase chromosome value was found to range from 2119.85 (cytotype-3) to 5346.12 (cytotype-7). Heterochromatin values varied from 23.17 (cytotype-2) to 44.52% (cytotypt-6) in meristematic cells. Karyotype studies revealed that somatic chromosome number was 28 in cytotype-1, 2, 5, 6 and 7; 42 in cytotype-3 and 21 in cytotype-4. The longest chromosome (5.54 μm) was observed in cytotyopt-2 and shortest (1.3 μm) in cytotype-3 and 6.

Key words: Karyotype, Nuclear phenotype, Colocasia esculenta.  

DOI:10.3329/jbs.v16i0.3735   

J. bio-sci. 16: 15-18, 2008  

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Parvin, S., Kabir, G., Ud-Deen, M., & Sarker, J. (1). Karyotype Analysis of Seven Varieties of Taro <i>Colocasia esculenta</i&gt; (L.) Schott. from Bangladesh. Journal of Bio-Science, 16, 15-18. https://doi.org/10.3329/jbs.v16i0.3735
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