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当前位置: 首页 > 文章 > 不同生殖方式对班氏跳小蜂寄生率和子代性比的影响 环境昆虫学报 2016,38 (4) 742-747
Position: Home > Articles > Effects of different reproductive patterns on the parasitization rate and offspring sex ratio of Aenasius bambawalei Journal of Environmental Entomology 2016,38 (4) 742-747

不同生殖方式对班氏跳小蜂寄生率和子代性比的影响

作  者：
张娟;黄俊;吕要斌
单  位：
浙江省农业科学院花卉研究开发中心/浙江省萧山棉麻研究所;浙江省农业科学院植物保护与微生物研究所
关键词：
班氏跳小蜂;生殖方式;寄生率;子代性比
摘  要：
为了明确班氏跳小蜂不同生殖方式及雌蜂密度对种群的影响,研究了班氏跳小蜂在不同雌雄比例的两性生殖和孤雌生殖条件下以及不同雌蜂密度情况时,其寄生率及子代的雌性比例。结果表明:班氏跳小蜂可进行两性生殖和产雄孤雌生殖,不同雌雄比例的两性生殖及孤雌生殖的寄生率随着雌蜂数量的增加不断升高,雌雄比为20∶1时的寄生率最高,为49.13%;在两性生殖雌雄比为15∶1的情况下,其后代雌性最高;不同粉蚧密度条件下,2头雌蜂同时存在时,其寄生率和子代性比均最高。说明两性生殖(雌雄比为15∶1)和2头雌蜂同时存在条件下,更利于班氏跳小蜂种群发展。
译  名：
Effects of different reproductive patterns on the parasitization rate and offspring sex ratio of Aenasius bambawalei
作  者：
ZHANG Juan;HUANG Jun;LU Yao-Bin;Flower Research and Development Centre,Zhejiang Academy of Agricultural Sciences / Xiaoshan Institute of Cotton and Fiber Crops;State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control,Institute of Plant Protection and Microbiology,Zhejiang Academy of Agricultural Sciences;
关键词：
Aenasius bambawalei;;reproductive patterns;;parasitization rate;;offspring sex ratio
摘  要：
The effects of reproductive patterns and Aenasius bambawalei female adult density on the parasitization rate and offspring sex ratio were determined in the laboratory. The results indicated that the reproductive model of A. bambawalei included bisexual reproduction and arrhenotoky. Meanwhile,the parasitization rate of A. bambawalei increased with the increase of parasitic wasp density and peaked( 49. 13 %) with 20 ∶ 1 female to male ratio. The offspring female ratio peaked with 15 ∶ 1 female to male ratio. Additionally, the parasitization rate and offspring female ratio were higer when two female A. bambawalei occurred at the same time. This study interpreted that bisexual reproduction and two female parasitic wasps occurred at the same time were more beneficial for the population development of A. bambawalei.

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