中国北方稻水象甲种群与美国两性生殖型种群触角形态特征的比较研究  

Comparison of antenna morphological characteristics of the parthenogenetic Lissorhoptrus oryzophilus Kuschel in North China and those of bisexual counterparts in the USA

作　　者：张川[1] 王磊[1] 郭磊[1] 褚栋[1] 

机构地区：[1]青岛农业大学农学与植物保护学院山东省植物病虫害综合防控重点实验室,山东青岛266109

出　　处：《环境昆虫学报》2016年第1期119-125,共7页Journal of Environmental Entomology

基　　金：山东省现代农业产业技术体系水稻创新团队项目;青岛市科技发展计划项目(13-1-3-108-nsh)

摘　　要：为了揭示孤雌生殖型稻水象甲不同种群触角的形态变异,明确两性生殖型与孤雌生殖型稻水象甲触角形态特征差异。分析了来自于吉林通化(TH)、吉林公主岭(GZL)、辽宁沈阳东陵区(DL)、辽宁沈阳苏家屯(SJT)、山东东营(DY)5个孤雌生殖稻水象甲触角各节的长度和最大宽度,并与美国两性生殖型稻水象甲成虫触角进行了比较。结果表明孤雌生殖型雌性的触角柄节长度、触角总长度明显长于两性生殖型雌性的(P<0.01)。除柄节外,孤雌生殖型雌性触角各节的宽度均明显宽于两性生殖型雌性(P<0.01)。两种生殖型稻水象甲雌性触角梗节以及第3、4、6鞭小节的最大宽度范围不重叠。吉林通化种群(TH)与其他4个中国北方种群之间触角有显著性差异。两性生殖型稻水象甲雄性的触角总长度和柄节长度均明显长于雌性(P<0.01),且雄性柄节长度范围(310.45-316.22μm)与雌性的范围(282.12-294.56μm)不重叠。结果提示,柄节长度可以鉴别本研究中两性生殖型稻水象甲雌雄个体;触角梗节以及第3、4、6鞭小节的最大宽度范围可以鉴别本研究中2种生殖型雌性个体。The aim of this study was to reveal the variance of the antenna morphological characteristics of the populations of the parthenogenetic rice water weevil （ RWW）, Lissorhoptrus oryzophilus Kuschel in North China, and to determine the antenna morphological characteristics between bisexual and parthenogenetic RWW. The length and the maximum width of antenna of bisexual RWW collected from the United States and the 5 parthenogenetic populations from China were measured. Each segment of the antenna （except scape） of parthenogentic females was wider than those of bisexual females （P 〈 0. 01 ）. The range of maximum width of pedicel, and the second, the third, and the sixth flagellomeres between bisexual and parthenogenteic female RWW have no overlap. The antenna characteristics of the Tonghua of Jilin （TH） population was obviously different with that of the other 4 parthenogenetic RWW populations in China. The total length of antenna and the length of scape of bisexual males were obviously longer than those of the bisexual females （ P 〈 0. 01 ）. The range of female＇s scape length （282. 12 -294.56 μm） does not cover the male＇s （310.45 -316.22 μm）. The length of scape and total length of antenna of parthenogenetic females were both significantly longer than those of bisexual females （P 〈 0.01 ）. These results suggest that the scape length can be used to differentiate the female and male bisexual RWW in this study, and the maximum width of pedicel, and the second, the third, and the sixth flagellomeres can be used to differentiate bisexual and parthenogenetic RWW in this study.

关 键 词：稻水象甲 两性生殖 孤雌生殖 触角 

分 类 号：Q968[生物学—昆虫学] S433.5[农业科学—农业昆虫与害虫防治]