干旱区生态环境知识资源中心(Arid): Contrasting Genetic Footprints among Saharan Olive Populations: Potential Causes and Conservation Implications

Arid

DOI	10.3390/plants10061207
	Contrasting Genetic Footprints among Saharan Olive Populations: Potential Causes and Conservation Implications
	Besnard, Guillaume; Gorrilliot, Oceane; Raimondeau, Pauline; Genot, Benoit; El Bakkali, Ahmed; Anthelme, Fabien; Baali-Cherif, Djamel
通讯作者	Besnard, G (corresponding author), CNRS UPS ENFA, EDB, UMR 5174, Bat 4R1, F-31062 Toulouse 9, France.
来源期刊	PLANTS-BASEL
EISSN	2223-7747
出版年	2021
卷号	10 期号:6
英文摘要	The Laperrine's olive is endemic to the Saharan Mountains. Adapted to arid environments, it may constitute a valuable genetic resource to improve water-stress tolerance in the cultivated olive. However, limited natural regeneration coupled with human pressures make it locally endangered in Central Sahara. Understanding past population dynamics is thus crucial to define management strategies. Nucleotide sequence diversity was first investigated on five nuclear genes and compared to the Mediterranean and African olives. These data confirm that the Laperrine's olive has a strong affinity with the Mediterranean olive, but it shows lower nucleotide diversity than other continental taxa. To investigate gene flows mediated by seeds and pollen, polymorphisms from nuclear and plastid microsatellites from 383 individuals from four Saharan massifs were analyzed. A higher genetic diversity in Ahaggar (Hoggar, Algeria) suggests that this population has maintained over the long term a larger number of individuals than other massifs. High-to-moderate genetic differentiation between massifs confirms the role of desert barriers in limiting gene flow. Yet contrasting patterns of isolation by distance were observed within massifs, and also between plastid and nuclear markers, stressing the role of local factors (e.g., habitat fragmentation, historical range shift) in seed and pollen dispersal. Implications of these results in the management of the Laperrine's olive genetic resources are discussed.
英文关键词	dry area gene flow isolation by distance Laperrine's olive microsatellites plastid DNA Sahara desert seed and pollen dispersal wild olive genetic resources
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000666032800001
WOS关键词	EUROPAEA SUBSP-LAPERRINEI ; OLEA-EUROPAEA ; CUPRESSUS-DUPREZIANA ; CLONAL GROWTH ; F-STATISTICS ; TREE ; DIVERSITY ; FLOW ; POLLEN ; DIFFERENTIATION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351369
作者单位	[Besnard, Guillaume; Gorrilliot, Oceane; Raimondeau, Pauline; Genot, Benoit] CNRS UPS ENFA, EDB, UMR 5174, Bat 4R1, F-31062 Toulouse 9, France; [El Bakkali, Ahmed] INRA, UR APCRPG, BP 578, Meknes 50000, Morocco; [Anthelme, Fabien] Univ Montpellier, AMAP, IRD, CIRAD,CNRS,INRA, F-34398 Montpellier, France; [Baali-Cherif, Djamel] USTHB INA, Lab Rech Zones Arides, BP44, Algiers 16000, Algeria
推荐引用方式 GB/T 7714	Besnard, Guillaume,Gorrilliot, Oceane,Raimondeau, Pauline,et al. Contrasting Genetic Footprints among Saharan Olive Populations: Potential Causes and Conservation Implications[J]. French National Research Institute for Sustainable Development,2021,10(6).
APA	Besnard, Guillaume.,Gorrilliot, Oceane.,Raimondeau, Pauline.,Genot, Benoit.,El Bakkali, Ahmed.,...&Baali-Cherif, Djamel.(2021).Contrasting Genetic Footprints among Saharan Olive Populations: Potential Causes and Conservation Implications.PLANTS-BASEL,10(6).
MLA	Besnard, Guillaume,et al."Contrasting Genetic Footprints among Saharan Olive Populations: Potential Causes and Conservation Implications".PLANTS-BASEL 10.6(2021).