中国生物防治学报2019，Vol.35Issue(2)：191-196,6.DOI:10.16409/j.cnki.2095-039x.2019.02.011
室内饲养的蠋蝽种群近交衰退分析
Inbreeding Depression in Captive-raised Arma chinensis
摘要
Abstract
Arma chinensis is an excellent predator that can prey on more than 40 species of lepidoptera, coleoptera and hymenoptera pests. At present, A. chinensis are mostly reared in insectary, which can result in inbreeding depression. A series of life characteristics of A. chinensis population in inbreeding condition were determined, which can support insectary rearing of the predator. A. chinensis populations were inbred or outbred continuously in the insectary, and the differences between the inbred and outbred populations in egg hatching rate, developmental duration of nymphal stages, body weight and sex ratio in the sixth generation were analyzed. Compared with those of the outbred population, egg hatching rate of the inbred population (43.66％) was 22.62％ lower, egg hatching duration was 1.7 days longer. Developmental duration of each instar and the nymphs of the inbred population was marginally different from that of the outbred population. No significant difference was observed in weight between the outbred and inbred A. chinensis. The inbred population was significantly male-biased in comparison with the outbred population. Overall, the inbred population was significantly inferior to the outbred population in egg hatching rate and adult acquisition rate, while there was no significant difference in developmental duration and body weight. Therefore, outbreeding A. chinensis should be supplemented into the insectary rearing A. chinensis population to avoid inbreeding depression.关键词
蠋蝽/近交系/繁殖/衰退Key words
Arma chinensis/inbred lines/production/depression分类
农业科技引用本文复制引用
苗少明,廖平,叶敏,毛建军,王孟卿,张礼生,陈红印,刘晨曦..室内饲养的蠋蝽种群近交衰退分析[J].中国生物防治学报,2019,35(2):191-196,6.基金项目
国家重点研发计划 (2017YFD0200400, 2017YFE0104900, 2017YFD0201000, 110201801022-LS-01) （2017YFD0200400, 2017YFE0104900, 2017YFD0201000, 110201801022-LS-01）
