Comparative transcriptomic analysis of larval and adult Malpighian tubules from the cotton bollworm Helicoverpa armigera  

作　　者：Yi-Yang Yuan Mei Li Fan Fan Xing-Hui Qiu 

机构地区：[1]State Key Laboratory of Integrated Management of Pest Insects and Rodents,Institute of Zoology,Chinese Academy of Sciences,Beijing,China [2]College of Plant Protection,Hebei Agricultural University,Baoding,Hebei Province,China

出　　处：《Insect Science》2018年第6期991-1005,共15页昆虫科学（英文版）

基　　金：grants fom National Natural Science Foundation of China[No.31601644] and the State Key Laboratory of Integrated Management of Pest Insects and Rodents[No.ChineseIPM1502].

摘　　要：Malpighian tubules (MTs)are moregulatory organs of insects.However, usually considered the key excretory and os- increasing evidence has suggested that MTs perform many more functions than just osmoregulation.Until now,the molecular and physiological functions of MTs in the cotton bollworm (Helicoverpa armigera),a very important agricultural pest,are largely unknown.In this study,the transcriptomes of H. armigera MTs from larvae,male adults and female adults were sequenced using RNA-Seq technology,and comparative analyses of transcriptomes between two life stages (larval and adult)and between adult sexes were conducted.We generated a total of 84 643 high-quality unigenes,and identified a large number of abundant transcripts putatively encoding proteins involved in diuresis,detoxification,immunity,carbohydrate transport and metabolism,development and reproduction.We found that the expression pattern of unigenes was relatively similar between female and male adult MTs,but different between larval and adult MTs.Our data suggest that insect MTs may take multiple physiological fimctions as versatile organs.The extensive alterations in gene expression in MTs occurred from larvae to adults reflect an ecological adaptation to different feeding habits.Sexual dimorphism in the cotton bollworm is somewhat indicated by the transcriptional difference of genes related to carbohydrate metabolism,detoxification,immunity and reproduction in the MTs of male and female adults.

关 键 词：ecological adaptation HELICOVERPA ARMIGERA Malpighian TUBULES sexual DIMORPHISM TRANSCRIPTOME 

分 类 号：Q[生物学]