Comparative Plastome Analysis of Root- and Stem-Feeding Parasites of Santalales Untangle the Footprints of Feeding Mode and Lifestyle Transitions

doi:10.1093/gbe/evz271

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	Comparative Plastome Analysis of Root- and Stem-Feeding Parasites of Santalales Untangle the Footprints of Feeding Mode and Lifestyle Transitions
	Chen, Xiaoli 1,2; Fang, Dongming 1,2; Wu, Chenyu 1,2; Liu, Bing 3; Liu, Yang 4; Sahu, Sunil Kumar 1,2; Song, Bo 1,2; Yang, Shuai 5; Yang, Tuo 1; Wei, Jinpu 1
刊名	GENOME BIOLOGY AND EVOLUTION
	2020
卷号	12 期号:1 页码:3663-3676
关键词	parasitic plants Santalales reductive plastome evolution selection feeding mode Balanophoraceae
ISSN号	1759-6653
DOI	10.1093/gbe/evz271
文献子类	Article
英文摘要	In plants, parasitism triggers the reductive evolution of plastid genomes (plastomes). To disentangle the molecular evolutionary associations between feeding on other plants below- or aboveground and general transitions from facultative to obligate parasitism, we analyzed 34 complete plastomes of autotrophic, root- and stem-feeding hemiparasitic, and holoparasitic Santalales. We observed inexplicable losses of housekeeping genes and tRNAs in hemiparasites and dramatic genomic reconfiguration in holoparasitic Balanophoraceae, whose plastomes have exceptionally low GC contents. Genomic changes are related primarily to the evolution of hemi- or holoparasitism, whereas the transition from a root- to a stem-feeding mode plays no major role. In contrast, the rate of molecular evolution accelerates in a stepwise manner from autotrophs to root- and then stem-feeding parasites. Already the ancestral transition to root-parasitism coincides with a relaxation of selection in plastomes. Another significant selectional shift in plastid genes occurs as stem-feeders evolve, suggesting that this derived form coincides with trophic specialization despite the retention of photosynthetic capacity. Parasitic Santalales fill a gap in our understanding of parasitism-associated plastome degeneration. We reveal that lifestyle-genome associations unfold interdependently over trophic specialization and feeding mode transitions, where holoparasitic Balanophoraceae provide a system for exploring the functional realms of plastomes.
学科主题	Evolutionary Biology ; Genetics & Heredity
出版地	OXFORD
WOS关键词	CHLOROPLAST GENOME ; PHYSIOLOGICAL-ASPECTS ; SUBSTITUTION RATES ; EVOLUTION ; GENES ; MISTLETOES ; PLANTS ; REDUCTION ; ORIGINS ; TRANSCRIPTION
WOS研究方向	Evolutionary Biology ; Genetics & Heredity
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000522860800011
资助机构	National Key Research and Development Program of China [2019YFC1711000] ; Science, Technology and Innovation Commission of Shenzhen Municipality [JCYJ20160331150739027, JCYJ20170817145512476] ; Guangdong Provincial Key Laboratory of Genome Read and Write Grant [2017B030301011] ; German Science Foundation [DFG]German Research Foundation (DFG) [WI 4507/3]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21835]
专题	系统与进化植物学国家重点实验室
作者单位	1.BGI Shenzhen, Shenzhen, Peoples R China 2.BGI Shenzhen, China Natl GeneBank, Shenzhen, Peoples R China 3.BGI Shenzhen, State Key Lab Agr Genom, Shenzhen, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China 5.Shenzhen & Chinese Acad Sci, Fairylake Bot Garden, Shenzhen, Peoples R China 6.Qingdao Univ, Sch Basic Med, Qingdao, Peoples R China 7.BGI Shenzhen, BGI Qingdao, Qingdao, Peoples R China 8.Hainan Univ, Inst Trop Agr & Forestry, Hainan Key Lab Sustainable Utilizat Trop Bioresou, Haikou, Hainan, Peoples R China 9.Jilin Agr Univ, Coll Chinese Med Mat, Jilin, Jilin, Peoples R China 10.BGI Shenzhen, MGI, Shenzhen, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xiaoli,Fang, Dongming,Wu, Chenyu,et al. Comparative Plastome Analysis of Root- and Stem-Feeding Parasites of Santalales Untangle the Footprints of Feeding Mode and Lifestyle Transitions[J]. GENOME BIOLOGY AND EVOLUTION,2020,12(1):3663-3676.
APA	Chen, Xiaoli.,Fang, Dongming.,Wu, Chenyu.,Liu, Bing.,Liu, Yang.,...&Liu, Huan.(2020).Comparative Plastome Analysis of Root- and Stem-Feeding Parasites of Santalales Untangle the Footprints of Feeding Mode and Lifestyle Transitions.GENOME BIOLOGY AND EVOLUTION,12(1),3663-3676.
MLA	Chen, Xiaoli,et al."Comparative Plastome Analysis of Root- and Stem-Feeding Parasites of Santalales Untangle the Footprints of Feeding Mode and Lifestyle Transitions".GENOME BIOLOGY AND EVOLUTION 12.1(2020):3663-3676.