干旱区生态环境知识资源中心(Arid): Physiological and transcriptomic responses of two Artemisia californica populations to drought: implications for restoring drought-resilient native communities

Arid

DOI	10.1016/j.gecco.2023.e02466
	Physiological and transcriptomic responses of two Artemisia californica populations to drought: implications for restoring drought-resilient native communities
	Atamian, Hagop S.; Funk, Jennifer L.
通讯作者	Atamian, HS
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
EISSN	2351-9894
出版年	2023
卷号	43
英文摘要	As climate change brings drier and more variable rainfall patterns to many arid and semi-arid regions, land managers must re-assemble appropriate plant communities for these conditions. Transcriptome sequencing can elucidate the molecular mechanisms underlying plant responses to changing environmental conditions, potentially enhancing our ability to screen suitable geno-types and species for restoration. We examined physiological and morphological traits and transcriptome sequences of coastal and inland populations of California sagebrush (Artemisia californica), a critical shrub used to restore coastal sage scrub vegetation communities, grown under low and high rainfall environments. The populations are located approximately 36 km apart but differ in mean annual precipitation, with the coastal population experiencing approx-imately 42% more rainfall. We found subtle phenotypic differences between populations, with plants from the coastal population showing higher rates of carbon assimilation and growth, and a more considerable decrease in function in response to drought compared to the inland population. We observed more extensive transcriptome responses in A. californica root compared to leaf tis-sues. While the two populations shared several responses to drought, such as upregulated protein folding and stabilization, coastal populations demonstrated more extensive responses to stress than inland populations. Furthermore, transcriptomic results from inland populations showed reduced aboveground growth and early flowering which may reduce evaporative loss and maximize reproductive output, respectively, under low rainfall conditions. These patterns are consistent with a trade-off between growth and stress tolerance, where the coastal population has a strategy more aligned with growth compared to the inland population, which may be better able to tolerate stress. Identifying drought-tolerant populations can ultimately lead to cost savings in maintaining restored areas under future climate conditions.
英文关键词	Climate change Drought Ecological restoration Gene expression Leaf Root Antioxidant Water use efficiency Abiotic stress
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001041891900001
WOS关键词	TRANSGENIC RICE ; BIOMASS ALLOCATION ; TOLERANCE ; GENE ; EXPRESSION ; STRESS ; PLANTS ; TRANSPORTERS ; STRATEGIES ; SYNTHASE
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396783
推荐引用方式 GB/T 7714	Atamian, Hagop S.,Funk, Jennifer L.. Physiological and transcriptomic responses of two Artemisia californica populations to drought: implications for restoring drought-resilient native communities[J],2023,43.
APA	Atamian, Hagop S.,&Funk, Jennifer L..(2023).Physiological and transcriptomic responses of two Artemisia californica populations to drought: implications for restoring drought-resilient native communities.GLOBAL ECOLOGY AND CONSERVATION,43.
MLA	Atamian, Hagop S.,et al."Physiological and transcriptomic responses of two Artemisia californica populations to drought: implications for restoring drought-resilient native communities".GLOBAL ECOLOGY AND CONSERVATION 43(2023).