Abstract

Many cockroach species have adapted to urban environments, and some have been serious pests of public health in the tropics and subtropics. Here, we present the 3.38-Gb genome and a consensus gene set of the American cockroach, Periplaneta americana. We report insights from both genomic and functional investigations into the underlying basis of its adaptation to urban environments and developmental plasticity. In comparison with other insects, expansions of gene families in P. americana exist for most core gene families likely associated with environmental adaptation, such as chemoreception and detoxification. Multiple pathways regulating metamorphic development are well conserved, and RNAi experiments inform on key roles of 20-hydroxyecdysone, juvenile hormone, insulin, and decapentaplegic signals in regulating plasticity. Our analyses reveal a high level of sequence identity in genes between the American cockroach and two termite species, advancing it as a valuable model to study the evolutionary relationships between cockroaches and termites.

Details

Title
The genomic and functional landscapes of developmental plasticity in the American cockroach
Author
Li, Sheng 1 ; Zhu, Shiming 1 ; Jia, Qiangqiang 1 ; Yuan, Dongwei 2 ; Ren, Chonghua 1 ; Kang, Li 1 ; Liu, Suning 1 ; Cui, Yingying 1 ; Zhao, Haigang 2 ; Cao, Yanghui 3 ; Fang, Gangqi 2 ; Li, Daqi 4 ; Zhao, Xiaoming 4 ; Zhang, Jianzhen 4 ; Yue, Qiaoyun 5 ; Fan, Yongliang 6 ; Yu, Xiaoqiang 1 ; Feng, Qili 1 ; Zhan, Shuai 3 

 Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, China 
 CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China 
 CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China 
 Research Institute of Applied Biology, Shanxi University, Taiyuan, China 
 Zhongshan Entry-Exit Inspection and Quarantine Bureau Technology Center, Zhongshan, China 
 State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China 
Pages
1-11
Publication year
2018
Publication date
Mar 2018
Publisher
Nature Publishing Group
e-ISSN
20411723
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2015810500
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.