干旱区生态环境知识资源中心(Arid): Signatures of local adaptation to climate in natural populations of sweet chestnut (Castanea sativa Mill.) from southern Europe

Arid

DOI	10.1007/s13595-021-01027-6
	Signatures of local adaptation to climate in natural populations of sweet chestnut (Castanea sativa Mill.) from southern Europe
	Castellana, Simone; Martin, Maria Angela; Solla, Alejandro; Alcaide, Francisco; Villani, Fiorella; Cherubini, Marcello; Neale, David; Mattioni, Claudia
通讯作者	Castellana, S (corresponding author), Ist Ric Ecosistemi Terr CNR, Porano, Italy.
来源期刊	ANNALS OF FOREST SCIENCE
ISSN	1286-4560
EISSN	1297-966X
出版年	2021
卷号	78 期号:2
英文摘要	center dot Key message Understanding the adaptive mechanisms of forest species is vital to ensure their survival in a climate change scenario. This study aimed at uncovering the relationship between genetic variability and environmental variables in naturalCastanea sativapopulations, unveiling how different climate scenarios drove local adaption processes using a landscape genomics approach. Our findings provide useful data for future management of this species. center dot Context Temperate forest species, such as chestnut (Castanea sativa Mill.), are currently threatened by increasing temperature together with disruption and reduction of precipitation due to climate change. In this context, understanding the adaptation processes of species will help to manage and ensure the conservation of forests. center dot Aims We studied the relationship between genetic variability and climate variables in natural populations of C. sativa using a landscape genomics approach aimed to identify local adaption processes. center dot Methods Using five genomic SSRs and eight functional EST-SSRs markers, 268 individuals belonging to ten different natural European chestnut populations distributed in contrasting climatic sites were genotyped. In addition, associations between allelic variation and climatic variables (environmental association analyses approach) were performed using Sam beta ada and LFMM. center dot Results Results highlighted a strong inter-relationship between climate variables and evolutionary processes resulting in adaptive variation. STRUCTURE analysis based on functional markers split the populations in three separate gene pools (K = 3), mostly in agreement with the different climatic conditions existing in the studied areas. Divergent spatial patterns of genetic variation between rainy and arid areas were found. We detected a total of 202 associations with climate among 22 different alleles, 9% of which related with the outlier locus FIR059, known to be implicated in regulatory mechanisms during water stress adaptation processes. center dot Conclusion Landscape genomics analyses revealed a pattern of adaptive variation, where specific climatic variables influenced the frequencies distribution and fixation of several alleles, resulting in local adaptation processes of the populations in the investigated areas. Our findings underline the close inter-relationship existing between climate and genetic variability and indicate how this approach could provide valuable information for the management of forest species in a rapidly changing environment.
英文关键词	Landscape genomics Sweet chestnut Environmental association analyses Local adaptation EST-SSR Climate change
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000632932100002
WOS关键词	EST-SSR ; GENETIC-VARIATION ; ALLELIC RICHNESS ; R-PACKAGE ; DROUGHT ; GRADIENTS ; SELECTION ; DIVERSITY ; METAANALYSIS ; LANDSCAPE
WOS类目	Forestry
WOS研究方向	Forestry
来源机构	University of California, Davis
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349466
作者单位	[Castellana, Simone; Villani, Fiorella; Cherubini, Marcello; Mattioni, Claudia] Ist Ric Ecosistemi Terr CNR, Porano, Italy; [Martin, Maria Angela] Univ Cordoba, Dept Genet, Cordoba, Spain; [Solla, Alejandro; Alcaide, Francisco] Univ Extremadura, Fac Forestry, Ave Virgen del Puerto 2, Plasencia, Spain; [Neale, David] Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA
推荐引用方式 GB/T 7714	Castellana, Simone,Martin, Maria Angela,Solla, Alejandro,et al. Signatures of local adaptation to climate in natural populations of sweet chestnut (Castanea sativa Mill.) from southern Europe[J]. University of California, Davis,2021,78(2).
APA	Castellana, Simone.,Martin, Maria Angela.,Solla, Alejandro.,Alcaide, Francisco.,Villani, Fiorella.,...&Mattioni, Claudia.(2021).Signatures of local adaptation to climate in natural populations of sweet chestnut (Castanea sativa Mill.) from southern Europe.ANNALS OF FOREST SCIENCE,78(2).
MLA	Castellana, Simone,et al."Signatures of local adaptation to climate in natural populations of sweet chestnut (Castanea sativa Mill.) from southern Europe".ANNALS OF FOREST SCIENCE 78.2(2021).