%0 Journal Article %A Singh Yadav, Abhay %A Bhatnagar, Anita %A Kaur, Manjeet %T Aberrations in the Chromosomes of Cirrhinus mrigala (Hamilton) upon Exposure to Butachlor %J Iranian Journal of Toxicology %V 7 %N 21 %U http://ijt.arakmu.ac.ir/article-1-217-en.html %R %D 2013 %K Chromosomal Aberrations, Clumping, End to End joining, Karyotype, Stickiness., %X Background: Cirrhinus mrigala, one of the important fish widely consumed in India, was used for karyological observations and to evaluate the toxic effect of butachlor, an extensively used herbicide in rice fields in terms of chromosomal aberration test. Methods: Fishes were collected from “National Fish Seed Farm” Jyotisar with mean body weight of 20-50g. The experimental fishes were kept in two treatments each with replicate of two. There were 15 fish each in the control group (T1) without exposure to butachlor and in T2 where fishes were exposed to butachlor. Results: Karyotype revealed the 2n=50 chromosome from the somatic cell. Chromosomal aberrations were reported after 24 hrs, 48 hrs, 72 hrs, and 96 hrs from kidney cell preparation in fishes exposed to 1.0 ppm, sublethal concentration of butachlor. Frequencies of chromosomal aberration revealed a significant (P %> http://ijt.arakmu.ac.ir/article-1-217-en.pdf %P 858-865 %& 858 %! %9 Research %L A-10-2-124 %+ Department of Zoology, Kurukshetra University Kurukshetra, India. %G eng %@ 2008-2967 %[ 2013