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Paurocephala sauteri, characterized by small individuals, rapid reproduction and overlapped generations, is the most damaging pest of mulberry trees in tropical and subtropical areas. It happens in seedling period, leading to yield loss over 40%, or even out of harvest, and is very difficult to control. In order to accurately predict and efficiently control the pest, and to improve the yield and quality of mulberry leaves, the internal reproductive system of the male and female adults of the pest in different developmental periods was dissected and observed to clarify the morphological characteristics and changes of the internal reproductive system of male and female adults of the pest before and after mating. Except for 2 pairs of lateral oviducts the composition of the internal reproductive system of the female adults is similar to Trioza erytreae (Del guercio), and male adults is highly similar to Diaphorina citri (Kuwayama). Compared with the pre-mating period, the length of spermatheca in mating and post-mating periods reached nearly 1.63 times and 1.85 times, and the width increased by about 1.74 times and 1.84 times respectively, with significant differences in each period (P<0.05), the length and width of eggs increased rapidly, to mating period increased by nearly 2 times (P<0.05). At the same time, several large vesicles appeared inside the egg in mating period and disappeared in post-mating period, them should be trophoblasts, providing nutrition for oocytes. Compared with the pre-mating period, the testes of the male increased to the maximum in the mating period and shrank to the minimum in the post-mating period. There were significant differences in the three periods (P<0.05), while the length and width of the seminal vesicle both significantly increased to about twice (P<0.05) in mating and post-mating periods. This study has practical significance to precisely judge and determine the appropriate period of prevention and control, to clone reproductive-related genes, to develop new gene targeting agents, and to formulate efficient prevention and control measures of P. sauteri.
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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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