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Dong HL, Zhang SX, Tao H, Chen ZH, Li X, Qiu JF, Cui WZ, Sima YH, Cui WZ, Xu SQ. Metabolomics differences between silkworms (Bombyx mori) reared on fresh mulberry (Morus) leaves or artificial diets. Sci Rep 2017; 7:10972. [PMID: 28887546 PMCID: PMC5591246 DOI: 10.1038/s41598-017-11592-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 08/24/2017] [Indexed: 12/14/2022] Open
Abstract
Silkworms (Bombyx mori) reared on artificial diets have great potential applications in sericulture. However, the mechanisms underlying the enhancement of metabolic utilization by altering silkworm nutrition are unclear. The aim of this study was to investigate the mechanisms responsible for the poor development and low silk protein synthesis efficiency of silkworms fed artificial diets. After multi-generational selection of the ingestive behavior of silkworms to artificial diets, we obtained two strains, one of which developed well and another in which almost all its larvae starved to death on the artificial diets. Subsequently, we analyzed the metabolomics of larval hemolymph by gas chromatography/liquid chromatography–mass spectrometry, and the results showed that vitamins were in critically short supply, whereas the nitrogen metabolic end product of urea and uric acid were enriched substantially, in the hemolymph of the silkworms reared on the artificial diets. Meanwhile, amino acid metabolic disorders, as well as downregulation of carbohydrate metabolism, energy metabolism, and lipid metabolism, co-occurred. Furthermore, 10 male-dominant metabolites and 27 diet-related metabolites that differed between male and female silkworms were identified. These findings provide important insights into the regulation of silkworm metabolism and silk protein synthesis when silkworms adapt to an artificial diet.
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Affiliation(s)
- Hui-Ling Dong
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, 215123, China.,Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, 215123, China
| | - Sheng-Xiang Zhang
- College of Forestry, Shandong Agricultural University, Taian Shandong, 271018, China
| | - Hui Tao
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, 215123, China.,Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, 215123, China
| | - Zhuo-Hua Chen
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, 215123, China.,Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, 215123, China
| | - Xue Li
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, 215123, China.,Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, 215123, China
| | - Jian-Feng Qiu
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, 215123, China.,Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, 215123, China
| | - Wen-Zhao Cui
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, 215123, China.,Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, 215123, China
| | - Yang-Hu Sima
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, 215123, China.,Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, 215123, China.,National Engineering Laboratory for Modern Silk (NEAER), Soochow University, Suzhou, 215123, China
| | - Wei-Zheng Cui
- College of Forestry, Shandong Agricultural University, Taian Shandong, 271018, China.
| | - Shi-Qing Xu
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, 215123, China. .,Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University, Suzhou, 215123, China. .,National Engineering Laboratory for Modern Silk (NEAER), Soochow University, Suzhou, 215123, China.
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