转Cry1Ac+Cry2Ab基因棉对棉蚜生命表参数及种群动态的影响
Effects of transgenic Cry1Ac and Cry2Ab cotton on life tableparameters and population dynamics of the cotton aphid
雒珺瑜 崔金杰 张 帅 王春义 辛惠江
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作者单位：中国农业科学院棉花研究所棉花生物学国家重点实验室安阳 455000
中文关键词：转Cry1Ac + Cry2Ab 基因棉花，棉蚜，生命表，种群动态
英文关键词：transgenic Cry1Ac plus Cry2Ab cotton，cotton aphids，life table，population dynamics
中文摘要：为研究新型转Cry1Ac + Cry2Ab 基因棉对棉蚜Aphis gossypii Glover 生命表参数及种群动态的影响。
2010—2011 年以常规棉中棉所49 为对照，对新型转Cry1Ac + Cry2Ab 基因棉在室内进行了生物测定和田间进行了
系统的调查。结果表明，和常规棉相比，转Cry1Ac + Cry2Ab 基因棉花上棉蚜的净增值率降低81. 69% ，差异达显著
水平;内禀增长率和周限增长率分别降低65. 00% 和13. 01% ，但差异不显著;平均世代周期和种群加倍时间分别
增加5. 54% 和154. 19% ，后者差异达显著水平。和常规棉相比，2010 年转Cry1Ac + Cry2Ab 基因棉花百株苗蚜、伏
蚜和秋蚜的数量分别降低10. 79% 、37. 18% 和17. 49% ，差异均未达显著水平;2011 年转Cry1Ac + Cry2Ab 基因棉
花百株苗蚜的数量增加2. 03% ，伏蚜和秋蚜的数量分别降低37. 41% 和64. 03% ，差异均未达显著水平。
英文摘要： The effects of transgenic Cry1Ac and Cry2Ab cotton on the life table parameters and population dynamics of the cotton aphid were studied under laboratory conditions and in cotton fields in 2010and 2011． The results show that， compared with conventional CCRI 49 cotton，net reproductive rates，intrinsic growth rates and the finite rate of increasedecreased by 81． 69%，65． 00%and 13． 01% respectively; the decrease in net reproductive rate being statisticallysignificant．The average generation cycle and population doubling time increased by 5． 54%and 154． 19%，respectively，the latter being statistically significant． Compared to conventional cotton，the numbers of seedling aphids，summer aphids and autumn aphids per 100 Cry1Ac－Cry2Abplants were 10． 79%，37． 18%and 17． 49% lower respectively in 2010，but these differences were notsignificant． Numbers of seedling aphids per 100 Cry1Ac－Cry2Ab plants in cotton fieldsincreased by 2． 03% in 2011，and numbers of summer aphids and autumn aphids per 100 Cry1Ac－Cry2Ab plantsdecreased by 37． 41%and 64． 03%respectively in 2011 but none of these differences were significant．