| Title: | Phenotypic disruption of cuticular hydrocarbon production in hybrids between sympatric species of Hawaiian picture-wing Drosophila |
| Author(s): | Fezza TJ; Siderhurst MS; Jang EB; Stacy EA; Price DK; |
| Address: | "Tropical Conservation Biology and Environmental Sciences, University of Hawaii at Hilo, 200 West Kawili St., Hilo, HI, 96720, USA. Department of Chemistry, Eastern Mennonite University, 1200 Park Rd, Harrisonburg, VA, 22802, USA. Tropical Crop and Commodity Protection Research, D.K.I, U.S. Pacific Basin Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, 64 Nowelo Street, Hilo, HI, 96720, USA. School of Life Sciences, University of Nevada, Las Vegas, USA. Tropical Conservation Biology and Environmental Sciences, University of Hawaii at Hilo, 200 West Kawili St., Hilo, HI, 96720, USA. donald.price@unlv.edu. School of Life Sciences, University of Nevada, Las Vegas, USA. donald.price@unlv.edu" |
| DOI: | 10.1038/s41598-022-08635-w |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "Interspecies hybrids can express phenotypic traits far outside the range of parental species. The atypical traits of hybrids provide insight into differences in the factors that regulate the expression of these traits in the parental species. In some cases, the unusual phenotypic traits of hybrids can lead to phenotypic dysfunction with hybrids experiencing reduced survival or reproduction. Cuticular hydrocarbons (CHCs) in insects are important phenotypic traits that serve several functions, including desiccation resistance and pheromones for mating. We used gas chromatography mass spectrometry to investigate the differences in CHC production between two closely related sympatric Hawaiian picture-wing Drosophila species, Drosophila heteroneura and D. silvestris, and their F1 and backcross hybrid offspring. CHC profiles differed between males of the two species, with substantial sexual dimorphism in D. silvestris but limited sexual dimorphism in D. heteroneura. Surprisingly, F1 hybrids did not produce three CHCs, and the abundances of several other CHCs occurred outside the ranges present in the two parental species. Backcross hybrids produced all CHCs with greater variation than observed in F1 or parental species. Overall, these results suggest that the production of CHCs was disrupted in F1 and backcross hybrids, which may have important consequences for their survival or reproduction" |
| Keywords: | Animals *Drosophila/metabolism Hawaii Hydrocarbons/metabolism Male Pheromones *Sympatry; |
| Notes: | "MedlineFezza, Thomas J Siderhurst, Matthew S Jang, Eric B Stacy, Elizabeth A Price, Donald K eng Research Support, U.S. Gov't, Non-P.H.S. England 2022/03/24 Sci Rep. 2022 Mar 22; 12(1):4865. doi: 10.1038/s41598-022-08635-w" |
