PMID- 25503440 OWN - NLM STAT- MEDLINE DCOM- 20151117 LR - 20191210 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 4 DP - 2014 Dec 15 TI - Centuries of domestication has not impaired oviposition site-selection function in the silkmoth, Bombyx mori. PG - 7472 LID - 10.1038/srep07472 [doi] LID - 7472 AB - Oviposition site-selection in insects is mediated through innate recognition templates (IRTs) tuned to specific chemical cues. These cues aid gravid insects in choosing suitable oviposition sites and may even enhance the fitness of their offspring by warding off predators and parasitoids. However, studies on the evolution of oviposition site-selection and cues instigating oviposition in domesticated insects remain elusive. Using the interaction between the silkmoth, Bombyx mori, and its host plant mulberry, Morus alba, as a model system, we demonstrate that centuries of domestication of silkmoth has not impaired its oviposition site-selection function. Silkmoths significantly preferred mulberry leaves to filter paper as oviposition sites. Oviposition assays with filter paper, filter paper treated with leaf volatiles and leaf alone proved that surface texture was not a significant criterion for oviposition site-selection, but volatile cues were. Oviposition assays with electrophysiologically active compounds from mulberry revealed that two of the volatiles, valencene and alpha-humulene, aided moths in choosing suitable oviposition sites and enhanced egg-laying significantly. Moreover, we show that generalist egg-parasitoids are strongly repelled by valencene and alpha-humulene. Our results demonstrate that IRTs tuned to cues that aid crucial functions like oviposition site-selection are less likely to be impaired even after centuries of domestication. FAU - Damodaram, Kamala Jayanthi Pagadala AU - Damodaram KJ AD - National Fellow Lab, Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hesserghatta Lake Post, Bangalore 560 089, India. FAU - Kempraj, Vivek AU - Kempraj V AD - National Fellow Lab, Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hesserghatta Lake Post, Bangalore 560 089, India. FAU - Aurade, Ravindra Mahadappa AU - Aurade RM AD - National Fellow Lab, Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hesserghatta Lake Post, Bangalore 560 089, India. FAU - Rajasekhar, Sowmya Bandhisara AU - Rajasekhar SB AD - National Fellow Lab, Division of Entomology and Nematology, Indian Institute of Horticultural Research, Hesserghatta Lake Post, Bangalore 560 089, India. FAU - Venkataramanappa, Ravindra Kothapalli AU - Venkataramanappa RK AD - Department of Insect Ecology, National Bureau of Agriculturally Important Insects, Bangalore, 560 024, India. FAU - Nandagopal, Bakthavatsalam AU - Nandagopal B AD - Department of Insect Ecology, National Bureau of Agriculturally Important Insects, Bangalore, 560 024, India. FAU - Verghese, Abraham AU - Verghese A AD - Department of Insect Ecology, National Bureau of Agriculturally Important Insects, Bangalore, 560 024, India. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141215 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Chemotactic Factors) RN - 0 (Monocyclic Sesquiterpenes) RN - 0 (Sesquiterpenes) RN - 54W56MD2WD (humulene) RN - 96H21P91IG (valencene) SB - IM MH - Animals MH - Animals, Domestic MH - Behavior, Animal/*drug effects MH - Bombyx/parasitology/*physiology MH - Chemotactic Factors/pharmacology MH - Chemotaxis/*drug effects MH - *Cues MH - Eggs/parasitology MH - Larva/parasitology/*physiology MH - Models, Biological MH - Monocyclic Sesquiterpenes MH - Morus/chemistry MH - Oviposition/*drug effects MH - Pest Control, Biological MH - Plant Leaves/*chemistry MH - Sesquiterpenes/pharmacology MH - Wasps/physiology PMC - PMC4265781 EDAT- 2014/12/17 06:00 MHDA- 2015/11/18 06:00 PMCR- 2014/12/15 CRDT- 2014/12/16 06:00 PHST- 2014/08/14 00:00 [received] PHST- 2014/11/19 00:00 [accepted] PHST- 2014/12/16 06:00 [entrez] PHST- 2014/12/17 06:00 [pubmed] PHST- 2015/11/18 06:00 [medline] PHST- 2014/12/15 00:00 [pmc-release] AID - srep07472 [pii] AID - 10.1038/srep07472 [doi] PST - epublish SO - Sci Rep. 2014 Dec 15;4:7472. doi: 10.1038/srep07472.