Effects of mating on reproductiveperformance of Coccophagus japonicus Compere (Hymenoptera: Aphelinidae)
文献类型： 外文期刊
作者： Li, Xian 1 ; Shen, Shunzhang 1 ; Fu, Yueguan 1 ; Chen, Junyu 1 ; Li, Lei 1 ; Han, Dongyin 1 ; Zhu, Junhong 2 ; Zhang, Fan 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Hainan, Peoples R China
2.Hainan Univ, Coll Plant Protect, Haikou 570228, Hainan, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.998； 五年影响因子：4.576 ）
ISSN： 2045-2322
年卷期： 2021 年 11 卷 1 期
页码：
收录情况： SCI
摘要： Coccophagus japonicus Compere, an endoparasitoid of Parasaissetia nigra Nietner, has great potential for biological control. To assess the influence of mating on the reproductiveperformance of this parasitoid, we examined the effects of mating on ovarian development, female longevity and number of eggs laid. The results showed that the egg volume in the ovary of C. japonicus first increased and then decreased with increases in the age of female adults. The peak egg volume in the ovary of mated females occurred 2 days earlier than that of virgin females. Within the female age range of 0-15 days, the numbers of eggs at stages I, II, and III first increased and then decreased with increases in the age of female C. japonicus, whereas the number of eggs at stage IV increased. The duration of the coexistence of females and males significantly influenced the length and width of the female ovaries, and the longest ovary tube and the highest number of eggs were obtained with a coexistence duration of 0 days. C. japonicus female longevity decreased with increases in the number of matings, and the number of eggs laid by females within 15 days decreased with increasing delays in mating. In conclusion, mating can shorten the longevity of C. japonicus females, and selecting newly emerged virgin females for mating can significantly improve the number of eggs laid and the breeding efficiency of the parasitoid.
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