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Paurocephala sauteri Enderlein is an important pest of tropical and subtropical mulberry, which seriously threatens the diversified development of tropical sericulture industry. Fatty acyl-CoA reductase (FAR) exists in various organisms and participates in the biosynthesis of fatty acid derivatives, and then participates in many life activities such as wax synthesis, reproduction, sexual information recognition and communication. A total of 23 FAR genes were screened in this study. Protein analysis showed that most of them were alkaline proteins with hydrophilicity. Subcellular localization prediction found that 17 FAR proteins were located in the cytoplasm, one FAR proteinin the mitochondria, one FAR protein in the nucleus, and four FAR proteins in the plasma membrane, indicating that the main place for the PsmFAR gene to function was the cytoplasm. Combined with the function of other known insect FAR genes and the expression analysis of FAR genes in nymphs, female adults, male adults and different parts of P. sauteri, it was found that FAR genes could be involved in development, reproduction, wax synthesis, cuticle synthesis, pheromone synthesis and detoxification. In addition to seven genes only involved in wax synthesis, the remaining 16 genes may be involved in multiple biological functions, including 16 genes (69.56%) involved in reproduction, 16 genes (69.56%) involved in wax synthesis, 12 genes (52.17%) involved in cuticle synthesis, and nine genes (39.13%) involved in development. There were five genes (21.74%) related to detoxification and four genes (17.39%) related to pheromone synthesis. In this study, based on the transcriptome sequencing analysis, the identification, sequence composition and expression analysis of the FAR gene family were carried out to explore the function of the FAR gene in the life activities of the P. sauteri, and to provide a theoretical basis for its efficient prevention and control technology and the development and application of targeted insecticides. Further verification of subsequent functions would provide a basis for the development of precise prevention and control agents targeting the FAR gene.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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