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抗虫水稻品种上饲养的白背飞虱种群的致害性变化 认领 被引量:8

Monitoring the Changes in Virulence of Different Populations of the Whitebacked Planthopper, Sogatella furcifera Rearing on Resistant Rice Varieties
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摘要 采用分别带有抗白背飞虱基因Wbph2和Wbph5的水稻品种ARC10239(ARC)和N'Diang(ND)作为选择寄主,获得第15代种群(ARC种群和ND种群),对这两个种群进行致害性检测.设RHT和TN1为抗感虫对照.结果表明这两个种群在其相应的寄主品种上分泌唾液和X波持续时间较短,而取食韧皮部的时间较长.ARC种群和ND种群分别在其相应的寄主品种和TN1上分泌的蜜露量没有显著差异,且明显大于其在RHT上分泌的蜜露量.在寄主品种和TN1上的产卵量明显高于RHT,发育卵率没有显著差异.ND种群在其寄主品种上的若虫存活率为45.0%,介于TN1(71.4%)和RHT(21.0%)之间,并与它们存在显著差异,ARC种群在其寄主品种上的若虫存活率为68.3%,与它在TN1上(77.5%)的若虫存活率之间没有显著差异,且明显高于RHT(22.6%).这两个种群若虫发育历期在其各自的选择寄主与TN1之间没有显著差异,且明显短于其在RHT上的发育历期.因此,这两个种群在取食和产卵方面已基本适应其相应的选择寄主品种,但ND种群的若虫存活率还较低. ARC colony and ND colony were obtained by maintaining the whitebacked planthopper (WBPH), Sogatella furcifera Horv'ath, exclusively on ARC10239 (ARC, carrying resistance gene Wbph2) and N'Diang (ND, carrying resistance gene Wbph5) for 15 generations. Taichung Native 1 (TN1) and Rathu Heenati (RHT) were used as susceptible and resistant check respectively. The results of electronic monitoring showed that duration of salivation and X-waveform of the two colonies on their corresponding hosts was short while the duration of phloem ingestion was long. The results of virulence test indicated that: the amount of honeydew excreted by ARC and ND colony did not differ on their corresponding host varieties from TN1 and was much higher than that on RHT. The total number of eggs laid on their host varieties and TN1 were significantly higher than that on RHT. No distinct change was observed for these two colonies in the percentage of developed eggs. The nymph survival rate of ND colony on its selection host was 45.0%, significantly different from that on TN1(71.4%) and RHT(21 0%), while that of ARC colony was 68.3%, not significantly different from that on TN1(77.5%), but much higher than that on RHT(22.6%). The nymph developmental duration of these two colonies on the corresponding hosts was not different from that on TN1, but significantly shorter than that on RHT. In brief, these two colonies had almost adapted to their corresponding host varieties based on feeding and oviposition, but the nymph survival rate of ND colony was still low.
作者 沈君辉 王燕 寒川一成 服部 刘光杰 SHEN Jun-hui 1, WANG Yan 2, SOGAWA Kazushige 3, HATTORI Makoto 4, LIU Guang-jie 1 ( 1Chinese National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China; 2College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China; 3Japan International Research Center for Agricultural Sciences, Tsukuba 305-8686, Japan; 4National Institute of Agrobiological Sciences, Tsukuba 305-8634, Japan)
出处 《中国水稻科学》 CAS CSCD 北大核心 2003年第z1期 84-88,共5页 Chinese Journal of Rice Science
基金 JIRCAS国际合作研究项目(B3333101) 浙江省自然科学基金资助项目(302373) 国家"十五"科技攻关项目(2001BA509B02-03) 浙江省"十五"科技攻关项目(011102202).
关键词 白背飞虱 电子记录 取食 产卵 致害性 Sogatella furcifera electronic monitoring feeding oviposition virulence
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