Apogamous Isoetes coromandelina L.f. (Isoetaceae) with asynaptic meiosis

Authors

  • V. Irudayaraj Department of Botany, St. Xavier’s College (Autonomous), Palayamkottai, Tamil Nadu – 627002
  • A. Benniamin Botanical Survey of India, Western Regional Centre, Pune
  • S. Arokia Raj Department of Botany, St. Xavier’s College (Autonomous), Palayamkottai, Tamil Nadu – 627002

DOI:

https://doi.org/10.36253/caryologia-2222

Keywords:

Isoetes coromandelina, asynaptic meiosis, apogamy

Abstract

This cytological study on Isoetes coromandelina L.f (Isoetaceae) from Tirunelveli District, Tamil Nadu, South India shows the presence of twenty two individual chromosomes along with a fragment (n=2n=22+1) during meiosis in megaspore mother cells without the presence of any bivalent. Cytomixis between two megaspores is very common, resulting in the formation of a high percentage of abortive spores. The present material is of an apogamous taxon with asynaptic Meiosis as reported by Abraham and Ninan from Kerala and Karnataka.

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Published

2024-03-15

How to Cite

Irudayaraj, V., Benniamin, A., & Arokia Raj, S. (2024). Apogamous Isoetes coromandelina L.f. (Isoetaceae) with asynaptic meiosis. Caryologia, 76(4), 51–57. https://doi.org/10.36253/caryologia-2222

Issue

Vol. 76 No. 4 (2023)

Section

Articles

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Copyright (c) 2023 V. Irudayaraj, A. Benniamin, S. Arokia Raj

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