Turkish Journal of Botany
Abstract
The genotoxic effects of 2 heavy metals (mercury chloride and cadmium chloride) on the gametic cells of 6 inbred lines of maize were tested in terms of cytological abnormalities. Meiosis was normal under control conditions. During the treatments with mercury and cadmium there was a concentration-dependent increase in meiotic abnormalities in all the inbred lines. A wide spectrum of chromosomal aberrations in the treated sets was stickiness, followed by laggards, bridges, scattering, precocious movement, fragments, etc. Maximum chromosomal anomalies were observed in inbred line CM-142 in both the treatment sets of heavy metals. Compared to CdCl_2, HgCl_2 induced more chromosomal damage in all the inbreds. Of the 6 inbreds examined during the present investigation, CM-138 was the most tolerant to both heavy metals, while CM-142 was the least resistant.
DOI
10.3906/bot-0801-6
Keywords
Zea mays, inbreds, mercury, cadmium, chromosomal anomalies
First Page
39
Last Page
46
Recommended Citation
KUMAR, G, & RAI, P. K (2010). The genotoxic potential of two heavy metals in inbred lines of maize (Zea mays L.). Turkish Journal of Botany 34 (1): 39-46. https://doi.org/10.3906/bot-0801-6
