Amino acid synthesis loss in parasitoid wasps and other hymenopterans

eLife

Shijiao Xiong¹  Chuanlin Yin²  Gongyin Ye²  John H Werren³  Hongwei Yao⁴  Fei Li⁴  Jiale Wang⁴  Yang Mei⁴  Kaili Yu⁴  Sammy Cheng⁴  Fang Wang⁴  Zhichao Yan⁴  Qi Fang⁴  Huizi Wu⁴  Yi Yang⁴  Xinhai Ye⁴  Ziwen Teng⁴  Qisheng Song⁴ 

[1] Department of Biology, University of Rochester, Rochester, United States;Department of Biology, University of Rochester, Rochester, United States;Division of Plant Sciences, College of Agriculture, Food and Natural Resources, University of Missouri, Columbia, United States;State Key Laboratory of Rice Biology & Ministry of Agricultural and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou, China;

关键词: amino acid synthesis;    trait loss;    comparative genomics;    genome sequencing;    parasitoid wasps;    Cotesia chilonis;   

DOI  :  10.7554/eLife.59795

来源: DOAJ

【 摘 要 】

Insects utilize diverse food resources which can affect the evolution of their genomic repertoire, including leading to gene losses in different nutrient pathways. Here, we investigate gene loss in amino acid synthesis pathways, with special attention to hymenopterans and parasitoid wasps. Using comparative genomics, we find that synthesis capability for tryptophan, phenylalanine, tyrosine, and histidine was lost in holometabolous insects prior to hymenopteran divergence, while valine, leucine, and isoleucine were lost in the common ancestor of Hymenoptera. Subsequently, multiple loss events of lysine synthesis occurred independently in the Parasitoida and Aculeata. Experiments in the parasitoid Cotesia chilonis confirm that it has lost the ability to synthesize eight amino acids. Our findings provide insights into amino acid synthesis evolution, and specifically can be used to inform the design of parasitoid artificial diets for pest control.

【 授权许可】

Unknown