Increased expression diversity buffers the loss of adaptive potential caused by reduction of genetic diversity in new unfavourable environments

doi:10.1098/rsbl.2018.0583

	Increased expression diversity buffers the loss of adaptive potential caused by reduction of genetic diversity in new unfavourable environments
	Liu, Wei 1; Kang, Lifang 1; Xu, Qin 1; Tao, Chengcheng 1,3; Yan, Juan 4; Sang, Tao1,2,3
	2019
发表期刊	BIOLOGY LETTERS
ISSN	1744-9561
卷号	15 期号:1
摘要	Mechanisms underlying adaptation to rapid environmental change are issues in evolutionary biology. It is widely accepted that reduction in genetic diversity when suddenly exposed to an unfavourable environment limits the adaptive potential of populations. With growing empirical evidence that expression diversity is likely to increase in the new environment, the role that expression diversity plays in adaptation needs to be theorized. Here, we first established a negative exponential relationship between expression diversity and genetic diversity using a phenomenological differential equation. We then derived a complex trade-off relationship between the changes of expression and genetic diversity, which followed a combination of exponential functions. Furthermore, we found the increase in expression diversity could buffer the loss of adaptive potential as genetic diversity decreased to a certain extent. These theoretical deductions were validated by transcriptomic data of Miscanthus lutarioriparius grown in two experimental fields and supported by good fit and random simulation. These results suggest that increased expression diversity may compensate the loss of genetic diversity and allow the populations to maintain a certain level of phenotypic variation to cope with sudden environmental change. This may buffer the quick diminishing of adaptive potential and consequently increases the change of adaptation to the new environment.
关键词	adaptation environmental change gene expression natural selection population transcriptomics
学科领域	Biology ; Ecology ; Evolutionary Biology
DOI	10.1098/rsbl.2018.0583
收录类别	SCI
语种	英语
WOS关键词	PLASTICITY ; EVOLUTION ; TRANSCRIPTOMICS ; ADAPTATION
WOS研究方向	Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS记录号	WOS:000456789800004
出版者	ROYAL SOC
文献子类	Article
出版地	LONDON
EISSN	1744-957X
资助机构	Key Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [KFZD-SW-112-01-08] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31400284, 31500186] ; National Key Research and Development Program of China [2016YFC0500905] ; Youth Innovation Promotion Association, CAS [Y829281G02] ; Project for Autonomous Deployment of the Wuhan Botanical Garden [55Y755271G02]
作者邮箱	sang@ibcas.ac.cn
作品OA属性	Green Published, Bronze
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/19782
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Plant Resources, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Inst Bot, Beijing Bot Garden, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Special Agr, Wuhan 430074, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wei,Kang, Lifang,Xu, Qin,et al. Increased expression diversity buffers the loss of adaptive potential caused by reduction of genetic diversity in new unfavourable environments[J]. BIOLOGY LETTERS,2019,15(1).
APA	Liu, Wei,Kang, Lifang,Xu, Qin,Tao, Chengcheng,Yan, Juan,&Sang, Tao.(2019).Increased expression diversity buffers the loss of adaptive potential caused by reduction of genetic diversity in new unfavourable environments.BIOLOGY LETTERS,15(1).
MLA	Liu, Wei,et al."Increased expression diversity buffers the loss of adaptive potential caused by reduction of genetic diversity in new unfavourable environments".BIOLOGY LETTERS 15.1(2019).

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