Changes in cuticular lipids, water loss and desiccation resistance in a tropical drosophilid: analysis of variation between and within populations

Fly
Ravi ParkashVineeta Sharma

Abstract

We investigated within as well as between population variability in desiccation resistance, cuticular lipid mass per fly and cuticular water loss in nine geographical populations of a tropical drosophilid, Zaprionus indianus. Interestingly, the amount of cuticular lipids and desiccation resistance in this non-melanic species are significantly higher as compared with melanic Drosophila melanogaster. On the basis of isofemale line analysis, within population trait variability in cuticular lipid mass per fly is positively correlated with desiccation resistance and negatively correlated with cuticular water loss but show lack of correlation with body size. We observed geographical variation in the amount of cuticular lipid mass per fly in Zaprionus indianus but no such divergence was found in D.melanogaster. In both the species, geographical variations in desiccation resistance are negatively correlated with cuticular water loss but the underlying mechanisms for changes in cuticular permeability are quite different. Thus, we may suggest that body melanisation and cuticular lipids may represent alternative strategies for coping with dehydration stress in melanic versus non-melanic drosophilids. For both the species, desiccation resi...Continue Reading

Citations

Dec 3, 2013·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Ravi ParkashChanderkala Lambhod
Mar 13, 2012·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Ravi ParkashDivya Singh
Oct 20, 2012·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Ravi ParkashPoonam Ranga
Nov 28, 2012·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Subhash RajpurohitAllen G Gibbs
Jan 7, 2010·Evolution; International Journal of Organic Evolution·Francesca D Frentiu, Stephen F Chenoweth
Sep 20, 2015·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Sean Tomlinson, Myles H M Menz
Jul 22, 2014·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Bhawna Kalra, Ravi Parkash
Dec 3, 2014·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Joseph R StinzianoBrent J Sinclair
Jan 12, 2011·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Ravi ParkashPoonam Ranga
Dec 18, 2014·Journal of Chemical Ecology·Mariaelena BonelliAnne-Geneviève Bagnères
Oct 30, 2013·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Ravi ParkashDivya Singh
Oct 9, 2016·Journal of Evolutionary Biology·S RajpurohitP S Schmidt
Jun 8, 2012·The Journal of Experimental Biology·Ravi ParkashDau Dayal Aggarwal
Jan 26, 2013·The Journal of Experimental Biology·Jyoti ChahalRavi Parkash
Oct 1, 2011·The Journal of Experimental Biology·Robert A JohnsonWilliam Sharp
Aug 9, 2013·The Journal of Experimental Biology·Ravi Parkash, Poonam Ranga

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