Karyotypic diversity among eight Zea mays L. varieties

Authors

  • Chandan Kumar Dash Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh
  • Kazi Nahida Begum Department of Botany, Jagannath University, Dhaka-1100, Bangladesh
  • Syeda Sharmeen Sultana Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

DOI:

https://doi.org/10.3329/bjb.v49i4.52653

Keywords:

Kayotype, Karyosystematics, Symmetry and asymmetry indices, Maize

Abstract

Staining property of interphase nuclei and prophase chromosomes, diploid chromosome number, total chromosome length (TCL), symmetric and asymmetric indices of karyotype were studied in eight maize varieties released by BARI. 2n = 20 chromosomes were found in Barnali, Mohor, Khoi Vhutta, BS-1, B-5 and BM-7 whereas 2n = 22 chromosomes in China and 2n = 24 chromosomes in B-73 were observed. TCL was highest in Mohor (190.49 ± 5.61 μm) and lowest in B-73 (69.30 ± 2.51 μm). These varieties showed significant variation in cytogenetical parameters. Results obtained are expected to supplement genetic identification of maize varieties in variety conservation efforts.

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Published

2020-12-31

How to Cite

Dash, C. K., Begum, K. N., & Sultana, S. S. (2020). Karyotypic diversity among eight Zea mays L. varieties. Bangladesh Journal of Botany, 49(4), 1157–1161. https://doi.org/10.3329/bjb.v49i4.52653

Issue

Section

Short Communications