异色瓢虫雌虫多次交配的利益  

Benefit of Female of Harmonia axyridis (Pallas) from Multiple Mating

作　　者：杨洪[1] 申智慧[1,2] 张帆[3] 廖启荣[1] 

机构地区：[1]贵州大学昆虫研究所,贵州山地农业病虫害重点实验室,贵阳550025 [2]都匀市第三中学,都匀558000 [3]北京市农林科学院植保环保所,北京100079

出　　处：《贵州科学》2012年第2期40-44,共5页Guizhou Science

基　　金：贵州省科学技术基金[黔科合J字(2007)2038];国家科技支撑计划(2008BADA5B02);公益性行业(农业)科研专项(200803006);黔东南州烟草主要病虫害发生流行规律与防治技术研究项目(200917)

摘　　要：本文研究了多次交配对异色瓢虫雌虫的产卵量、孵化率和雌虫寿命的影响。结果表明:多次交配显著提高了异色瓢虫雌虫的产卵量和孵化率,缩短了异色瓢虫雌虫的寿命;单次交配和重复交配对异色瓢虫的产卵量、孵化率和雌虫寿命没有显著影响。可能是不同雄虫间的精子竞争提高了精子质量,导致异色瓢虫雌虫进行多次交配产卵量和孵化率提高。多次交配中,不同雄虫间激烈的交配竞争和交配干扰给雌虫身体造成的物理损伤可能是雌虫寿命缩短的原因。Effects of multiple mating on fecundity, hatchability and longevity of female of Harmonia axyridis were investigated in this paper. The results showed that multiple mating increased the fecundity and hatchability of female, but reduced longevity. There were no significant differences in single or repeated mating for fecundity, hatchability and longevity of female. Sperm competition might be the reason for the increase of fecundity and hatchability of female in multiple mating. Interference and competition between males in multiple mating might be the cause for reduced longevity of female.

关 键 词：异色瓢虫 多次交配 精子竞争 

分 类 号：Q968.1[生物学—昆虫学]