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Desiccation tolerance and Starvation resistance exhibit opposite altitudinal cline in Indian populations of Drosophila immigrans Singh Manvender*, Tyagi Pankaj K., Shruti Molecular Genetics Research Laboratory Department of Biotechnology, N. C. College of Engineering, Israna, Panipat-132107, Haryana, India * For correspondence - pktgenetics@gmail.com
Abstract Altitudinal variations in desiccation tolerance and starvation resistance in D.immigrans populations are organized into adaptive clines. D.immigrans populations are characterized by increase in desiccation while starvation decreases and such opposite clines match climatic conditions. Regression analysis helps in explaining such adaptations. Upto now, there is no detailed data on altitudinal clines in Drosophila species and populations. Present data on genetic differentiation in D.immigrans populations evidence that such geographical clines are adaptive and maintained due to environmental gradients along the altitude. Top Keywords Starvation resistance, desiccation tolerance, clinal patterns, altitudinal populations and D.immigrans.. Top | |
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