遗传进化距离对植食性昆虫取食加拿大一枝黄花的影响  

Effect of phylogenetic distance from native plants on the herbivory of Solidago canadensis L.by phytopha-gous insects

作　　者：舒红锁 任典挺 洪荷芳 王江[4] SHU Hongsuo;REN Dianting;HONG Hefang;WANG Jiang(Forestry Technology Promotion Station of Sanmen County,Sanmen 317000,Zhejiang,China;Forestry Pest Control Station of Sanmen County,Sanmen 317000,Zhejiang,China;Linhai Branch of Taizhou Ecological Environment Bureau,Linhai 317093,Zhejiang,China;Taizhou Universily,Taizhou 318000,Zhejiang,China)

机构地区：[1]三门县林业技术推广总站,浙江三门317000 [2]三门县有害生物防治检疫站,浙江三门317000 [3]台州市生态环境局临海分局,浙江临海317093 [4]台州学院,浙江台州318000

出　　处：《生态学杂志》2024年第8期2440-2447,共8页Chinese Journal of Ecology

基　　金：浙江省自然科学基金项目(LY22C030001);国家自然科学基金项目(31870504)资助。

摘　　要：昆虫取食植物具有遗传聚集性,本土昆虫是否取食入侵植物以及强度如何,可能取决于本土植物与入侵植物的遗传进化距离。但是,本土植物与入侵植物遗传距离如何影响昆虫取食入侵植物尚不清楚。本研究采用人工控制和野外调查相结合,设置与加拿大一枝黄花(Solidago canadensis L.)遗传进化距离近和远的人工控制植物群落,同时在浙江、福建、江西和云南对加拿大一支黄花入侵群落进行群落学调查。以入侵植物加拿大一枝黄花为对象,研究遗传距离对昆虫取食叶片的比例和强度的影响。人工控制试验结果表明:本土植物与加拿大一枝黄花的遗传距离和物种类型对昆虫取食加拿大一枝黄花强度存在显著的交互作用,当本土植物与加拿大一枝黄花的遗传距离近时,昆虫取食加拿大一枝黄花强度显著高于本土植物;反之,则显著低于本土植物。遗传距离近和远的区组,入侵和本土植物被取食比例均没有显著差异。个别昆虫种类的数量在遗传距离远和遗传距离近的区组间存在显著差异。野外调查试验表明:不同地区和遗传距离对昆虫对加拿大一枝黄花的取食比例和取食强度存在显著差异,物种丰富度不存在显著影响;浙江和福建昆虫取食比例和强度与遗传进化距离呈显著负相关,但在云南则不存在显著相关关系。遗传进化距离可以通过影响昆虫取食对入侵植物产生影响,因此在今后的本土植物群落可入侵性研究中本土植物与入侵植物的遗传进化距离应作为一个重要因素给予考虑。Due to the genetic conservation of herbivory,phylogenetic distance between native plants and invasive plants may determine herbivory of invasive plants by native insects.However,how phylogenetic distance between native plants and invasive plants affects the herbivory of native insects on invasive plants is still unclear.We con-ducted manipulative experiments and field survey.We constructed artificial plant communities with distant and close phylogenetic distance to invasive plants(Solidago canadensis L.).Meanwhile,we conducted surveys on plant com-munities invaded by S.canadensis in Zhejiang,Fujian,Jiangxi,and Yunnan provinces.The proportion and intensi-ty of insect feeding on leaves of S.canadensis were examined.Results of artificial experiments showed that phyloge-netic distance and species types(native or invasive plants)significantly interacted to affect herbivory intensity.When the phylogenetic distance between the native plants and S.canadensis was close,the herbivory intensity of S.canadensis was significantly higher than that of native plants.When the phylogenetic distance between the native plants and S.canadensis was distant,the herbivory intensity of S.canadensis was significantly lower than that of native plants.Herbivory proportion had no significant difference between native and invasive plants in both artificial plant communities with close or distant phylogenetic distance with invasive plants.There were significant differences in the individual number of some insect species between genetically distant and genetically close groups.Results from the field survey showed that different regions and phylogenetic distance had significant effect on herbivory proportion and intensity.Plant species richness had no significant effect on herbivory proportion and intensity.The herbivory proportion and intensity had a significant negative correlation with phylogenetic distance in Zhejiang and Fujian,but no significant correlation in Yunnan.Our results indicate that phylogenetic distance can affect invasive plant

关 键 词：遗传进化距离 昆虫取食 加拿大一枝黄花 植物多样性 

分 类 号：S451[农业科学—植物保护]