title: Cloning, expression, and functional analysis of two acetylcholinesterase genes in Spodoptera litura (Lepidoptera: Noctuidae).
abstract: Two acetylcholinesterase genes (SlAce1 and SlAce2) were cloned from Spodoptera litura, which is an important pest that causes widespread economic damage to vegetables and ornamental plants. We analyzed their expression patterns and compared their biological functions by using RNA interference. Our results showed that SlAce1 and SlAce2 cDNA contains 2085bp and 1917bp nucleotides and encoding proteins of 694 and 638 amino acid residues, respectively. Phylogenic analysis indicated that the lineage of SlAce genes and SlAce1 was completely different from SlAce2. Although both genes were expressed in all developmental stages and majorly in the brain. The expression levels of the both genes were suppressed by inserting their related dsRNA in the 6th instar larvae, which led to 47.3% (SlAce1) and 37.9% (SlAce2) mortality. Interestingly, the suppression of the SlAce2 transcripts also led to significant reductions in the fecundity, hatching, and offspring in the parental generation of S. litura. It is concluded that SlAce2 is responsible for the hydrolysis of acetylcholine and also plays role in female breeding, embryo progress, and the development of progeny. Considerable larval mortality was observed after both AChE genes (i.e. Ace1 and Ace2) were silenced in S. litura confirms its insecticidal effectiveness, which provided a molecular basis in biological pest control approach.
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
authors.forename: Abdalla M A
authors.initials: AM
authors.lastname: Salim
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Shakeel
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
authors.forename: Jinyun
authors.initials: J
authors.lastname: Ji
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
authors.forename: Tinghao
authors.initials: T
authors.lastname: Kang
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
authors.forename: Yashu
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
authors.forename: Ehsan
authors.initials: E
authors.lastname: Ali
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Xiao
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China. Electronic address: luyanhui4321@126.com.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Lu
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China. Electronic address: huwan@mail.hzau.edu.cn.
authors.forename: Hu
authors.initials: H
authors.lastname: Wan
authors.affiliation: Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
authors.forename: Jianhong
authors.initials: J
authors.lastname: Li
mesh_terms: D000110:Acetylcholinesterase / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism*; D000818:Animals; D003001:Cloning, Molecular; D005260:Female; D015971:Gene Expression Regulation, Enzymologic; D020868:Gene Silencing; D007814:Larva; D047492:Peroxisome Proliferator-Activated Receptors / Q000819:agonists / Q000378:metabolism; D010802:Phylogeny; D012330:RNA, Double-Stranded / Q000235:genetics; D018411:Spodoptera / Q000145:classification / Q000201:enzymology* / Q000235:genetics*
chemical_list: D047492:Peroxisome Proliferator-Activated Receptors; D012330:RNA, Double-Stranded; D000110:Acetylcholinesterase
keywords: Acetylcholinesterase; Gene function; Quantitative real-time PCR; RNA interference; Spodoptera litura