Juvenile hormone regulates the shift from migrants to residents in adult oriental armyworm, Mythimna separata
文献类型： 外文期刊
作者： Zhang, Lei 1 ; Cheng, Lili 1 ; Chapman, Jason W. 2 ; Sappington, Thomas W. 5 ; Liu, Juanjuan 1 ; Cheng, Yunxia 1 ; Jia 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
2.Univ Exeter, Ctr Ecol & Conservat, Penryn TR10 9FE, Cornwall, England
3.Univ Exeter, Environm & Sustainabil Inst, Penryn TR10 9FE, Cornwall, England
4.Nanjing Agr Univ, Dept Entomol, Nanjing, Peoples R China
5.Iowa State Univ, USDA ARS, Corn Insects & Crop Genet Res Unit, Genet Lab, Ames, IA 50011 USA
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2020 年 10 卷 1 期
页码：
收录情况： SCI
摘要： In migratory insects, increasing evidence has demonstrated juvenile hormone (JH) is involved in regulating adult reproduction and flight. Our previous study demonstrated that the switch from migrants to residents in Mythimna separata could be induced by adverse environmental conditions during a sensitive period in adulthood (the first day post-emergence), but the role of JH in this switch is not clear. Here, we found a significantly different pattern of JH titers between migrants and residents, with migrants showing a slower release of JH during adulthood than residents. Application of JH analogue (JHA) in the 1-day-old adults, significantly accelerated adult reproduction and suppressed flight capacity. The pre-oviposition period and period of first oviposition of migrants treated with JHA were significantly shorter, while the total lifetime fecundity and mating percentage increased. The flight capacity and dorso-longitudinal muscle size of the migrants were decreased significantly when treated with JHA. The effect of JHA on reproduction and flight capacity indicate that JH titers during the sensitive period (first day post-emergence) regulates the shift from migrants to residents in M. separata.
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