Studies of Meiotic Behaviors in Some Taxa of the Nepalese Papilionaceae

Authors

  • Laxmi Manandhar Central Department of Botany, Tribhuvan University, Kirtipur, Kathmandu
  • Shyam Ratna Sakya Central Department of Botany, Tribhuvan University Kirtipur, Kathmandu

DOI:

https://doi.org/10.3126/jnhm.v26i0.14131

Keywords:

haploid chromosome count, metaphase I, meiosis

Abstract

This paper reports studies of meiotic behaviors of seventeen species, sub-species and varieties in seven genera of the Nepalese Papilionaceae and new chromosome numbers for three species (Crotalaria cytisoides Roxb. ex DC (n=8), Parochetus communis Buch-Ham. ex D. Don (n=8) and Piptanthus nepalensis (Hook.) D. Don. (n=9, 18) are new number reports. Meiotic behaviors are often normal in all the species). However, a few aberrations like univalents, chromosome bridges, laggards, precocious chromosomes and/ or cytomixis have been observed in most of the taxa. Pollen fertility is high (more than 80%) indicating that the abnormalities had not reached mature stages.

J. Nat. Hist. Mus. Vol. 26, 2012: 68-79

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Published

2015-12-17

How to Cite

Manandhar, L., & Sakya, S. R. (2015). Studies of Meiotic Behaviors in Some Taxa of the Nepalese Papilionaceae. Journal of Natural History Museum, 26, 68–79. https://doi.org/10.3126/jnhm.v26i0.14131

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