Obligate mutualism within a host drives the extreme specialization of a fig wasp genome

CORC > 昆明动物研究所 > 昆明动物研究所 > 遗传资源与进化国家重点实验室 > 分子进化基因组学

	Obligate mutualism within a host drives the extreme specialization of a fig wasp genome
	Xiao JH 1; Yue Z 2; Jia LY 1,3; Yang XH 2; Niu LH 4; Wang Z 2; Zhang P 1; Sun BF 1,3; He SM 1; Li Z 1,3
刊名	GENOME BIOLOGY
	2013
卷号	14 期号:12 页码:R141
通讯作者	James.Cook@uws.edu.au ; wangj@genomics.org.cn ; huangdw@ioz.ac.cn
合作状况	其它
英文摘要	Background: Fig pollinating wasps form obligate symbioses with their fig hosts. This mutualism arose approximately 75 million years ago. Unlike many other intimate symbioses, which involve vertical transmission of symbionts to host offspring, female fig wasps fly great distances to transfer horizontally between hosts. In contrast, male wasps are wingless and cannot disperse. Symbionts that keep intimate contact with their hosts often show genome reduction, but it is not clear if the wide dispersal of female fig wasps will counteract this general tendency. We sequenced the genome of the fig wasp Ceratosolen solmsi to address this question. Results: The genome size of the fig wasp C. solmsi is typical of insects, but has undergone dramatic reductions of gene families involved in environmental sensing and detoxification. The streamlined chemosensory ability reflects the overwhelming importance of females finding trees of their only host species, Ficus hispida, during their fleeting adult lives. Despite long-distance dispersal, little need exists for detoxification or environmental protection because fig wasps spend nearly all of their lives inside a largely benign host. Analyses of transcriptomes in females and males at four key life stages reveal that the extreme anatomical sexual dimorphism of fig wasps may result from a strong bias in sex-differential gene expression. Conclusions: Our comparison of the C. solmsi genome with other insects provides new insights into the evolution of obligate mutualism. The draft genome of the fig wasp, and transcriptomic comparisons between both sexes at four different life stages, provide insights into the molecular basis for the extreme anatomical sexual dimorphism of this species.
收录类别	SCI
资助信息	This project was supported by the National Natural Science Foundation of China (NSFC grant no. 31090253, 31172072, 31210103912), partially by Major Innovation Program of Chinese Academy of Sciences (KSCX2-EW-Z-2), by Program of Ministry of Science and Technology of the Republic of China (2012FY111100, 2011FY120200), by a grant (No. O529YX5105) from the Key Laboratory of the Zoological Systematics and Evolution of the Chinese Academy of Sciences, and by National Science Fund for Fostering Talents in Basic Research (Special subjects in animal taxonomy, NSFC- J1210002). Manuscript preparation was supported by a Discovery Grant from the Natural Sciences and Engineering Research Council of Canada (3148) and by a Visiting Professorship for Senior International Scientists from the Chinese Academy of Sciences to R.W. Murphy.
语种	英语
WOS记录号	WOS:000331376200009
公开日期	2014-10-16
内容类型	期刊论文
源URL	[http://159.226.149.42:8088/handle/152453/8073]
专题	昆明动物研究所_分子进化基因组学昆明动物研究所_遗传资源与进化国家重点实验室
作者单位	1.Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China 2.BGI-Shenzhen, Shenzhen 518083, China 3.University of Chinese Academy of Sciences, Beijing 100039, China 4.College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China 5.Beijing TransGen Biotech Co. Ltd., Beijing 100192, China. 6.Biology Department, University of Rochester, Rochester, NY 14627, USA 7.State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China. 8.Department of Natural History, Royal Ontario Museum, 100 Queen’s Park, Toronto, Ontario M5S 2C6, Canada 9.Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China. 10.College of Life Science, Hebei University, Baoding 071002, China
推荐引用方式 GB/T 7714	Xiao JH,Yue Z,Jia LY,et al. Obligate mutualism within a host drives the extreme specialization of a fig wasp genome[J]. GENOME BIOLOGY,2013,14(12):R141.
APA	Xiao JH.,Yue Z.,Jia LY.,Yang XH.,Niu LH.,...&Huang DW[*].(2013).Obligate mutualism within a host drives the extreme specialization of a fig wasp genome.GENOME BIOLOGY,14(12),R141.
MLA	Xiao JH,et al."Obligate mutualism within a host drives the extreme specialization of a fig wasp genome".GENOME BIOLOGY 14.12(2013):R141.