The effects of boric acid and citric acid on chiasma frequency and meiotic division in Chorthippus loratus (Acrididae:Orthoptera) males

In this study, the cytogenetic effects of boric acid and citric acid in meiosis were investigated.Chorthippus loratus species of grasshoppers were treated with boric acid and citric acidsprayed grass at doses of 250, 500 and 1000 µg/ml for 24 hours. As a result of theinvestigations, it was observed that boric acid decreases chiasma frequency in doses of 500and 1000 µg/ml. Differences between 250-500 and 250-1000 µg/ml doses were statisticallysignificant. In the citric acid treated group, it was found that the frequency of chiasmadecreased at doses of 500 and 1000 µg/ml. The differences were also significant between 250-500, 250-1000 and 500-1000 µg/ml doses. In our study, the effects of boric acid and citric acidon chiasma frequency as well as damages like the stickiness of chromosomes, breakage,fragment and anaphase bridge were observed.