Body color plasticity of Diaphorina citri reflects a response to environmental stress  

作　　者：Jiayao Fan Feng Shang Huimin Pan Chenyang Yuan Tianyuan Liu Long Yi Jinjun Wang Wei Dou 

机构地区：[1]Key Laboratory of Entomology and Pest Control Engineering,College of Plant Protection,Southwest University,Chongqing,China [2]Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River(Ministry of Education),Southwest University,Chongqing,China [3]Academy of Agricultural Sciences,Southwest University,Chongqing,China [4]National Navel Orange Engineering Research Center,Gannan Normal University,Ganzhou,Jiangxi Province,China

出　　处：《Insect Science》2024年第3期937-952,共16页昆虫科学（英文版）

基　　金：supported by the National Key R&D Program of China(2021YFD1400805);the National Natural Science Foundation of China(32160625);Science and Technology Program of Jiangxi Province(20225BCJ22005);the China Agriculture Research System of MOF and MARA.

摘　　要：Body color polyphenism is common in Diaphorina citri.Previous studies compared physiological characteristics in D.citri,but the ecological and biological significance of its body color polyphenism remains poorly understood.We studied the ecological and molecular effects of stressors related to body color in D.citri.Crowding or low temperature induced a high proportion of gray morphs,which had smaller bodies,lower body weight,and greater susceptibility to the insecticide dinotefuran.We performed transcriptomic and metabolomics analysis of 2 color morphs in D.citri.Gene expression dynamics revealed that the differentially expressed genes were predominantly involved in energy metabolism,including fatty acid metabolism,amino acid metabolism,and carbohydrate metabolism.Among these genes,plexin,glycosidase,phospholipase,take out,trypsin,and triacylglycerol lipase were differentially expressed in 2 color morphs,and 6 hsps(3 hsp70,hsp83,hsp90,hsp68)were upregulated in gray morphs.The metabolome data showed that blue morphs exhibited a higher abundance of fatty acid and amino acid,whereas the content of carbohydrates was elevated in gray morphs.This study partly explains the body color polyphenism of D.citri and provides insights into the molecular changes of stress response of D.citri.

关 键 词：body color energy metabolism environmental stress phenotypic plasticity POLYPHENISM trade-off 

分 类 号：Q96[生物学—昆虫学]