naa a22 4500 510780288 CHVBK 20180411083244.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11692-012-9170-y doi (NATIONALLICENCE)springer-10.1007/s11692-012-9170-y Starvation Resistance in a Stenothermal Species from the Indian Subcontinent: Mechanistic Basis of Clinal Variation [Elektronische Daten] [Jyoti Chahal, Ravi Parkash, Kapil Dev] Parallel clines for starvation resistance and lipid content are well documented among drosophilids on the Indian subcontinent. However, the mechanistic basis of these clines has not been investigated so far. Here, we investigate the utilization of lipids during starvation as a function of duration of stress in D. ananassae. We found higher lipid content responsible for high starvation resistance at lower latitudes. Lipids were utilized during starvation only; not during any other climatic stresses like desiccation or thermal stresses. We also found a cline for consumption of total body lipids; as more content (out of total amount of lipids) was utilized by flies at lower latitudes and lesser at higher latitudes. But, there was no latitudinal cline for threshold lipid amount in the case of females while for males there was a positive cline. Lastly, parallel clines have evolved under contrasting climatic conditions i.e. drier and colder northern localities have flies with lower lipid and reduced starvation resistance while hot and humid localities favor flies with higher lipid levels and greater starvation tolerance. Thus, the evolution of clines associated with starvation and lipid content might have resulted due to specific ecological conditions i.e. humidity gradient on the Indian subcontinent. Springer Science+Business Media, LLC, 2012 Starvation resistance nationallicence Lipid content nationallicence Threshold lipids nationallicence Humidity nationallicence Temperature nationallicence Latitude nationallicence Chahal Jyoti Department of Genetics, Maharshi Dayanand University, 124001, Rohtak, India aut Parkash Ravi Department of Genetics, Maharshi Dayanand University, 124001, Rohtak, India aut Dev Kapil Department of Genetics, Maharshi Dayanand University, 124001, Rohtak, India aut Evolutionary Biology Springer US; http://www.springer-ny.com 40/1(2013-03-01), 45-56 0071-3260 40:1<45 2013 40 11692 https://doi.org/10.1007/s11692-012-9170-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11692-012-9170-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chahal Jyoti Department of Genetics, Maharshi Dayanand University, 124001, Rohtak, India aut NATIONALLICENCE 700 1- Parkash Ravi Department of Genetics, Maharshi Dayanand University, 124001, Rohtak, India aut NATIONALLICENCE 700 1- Dev Kapil Department of Genetics, Maharshi Dayanand University, 124001, Rohtak, India aut NATIONALLICENCE 773 0- Evolutionary Biology Springer US; http://www.springer-ny.com 40/1(2013-03-01), 45-56 0071-3260 40:1<45 2013 40 11692 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer