Effect of X-ray Treatment in Somatic Chromosomes of Eclipta alba (L.) Hassk.

抄録

The seeds of Eclipta alba have been successfully employed with different doses of X-ray irradiation to assess its effect on somatic chromosomes. The data obtained from the experimentally treated material have further been analysed with all the implications to understand the effects of radiation on the chromosome structure, behaviour and gene mutation. Although irradiation is known to induce chromosomal aberrations and mutation in many plants, its effect on Eclipta alba is not known. Data were obtained with regards to survival of seedlings and induced chromosomal anomalies in root tip cells. It may also be safely stated that experimental induction by physical means (X-rays) holds a clue to understanding the gene mutation and also the adaptability of the species in different environmental conditions. The result of experimental manipulation done as a part of the present investigation strengthens the contention that Eclipta alba in general is highly plastic and capable of forming populations through the adjustment of their genetic system.