ArticleAnnals of botany2005
High genetic diversity and clonal growth in relict populations of Olea europaea subsp. laperrinei (Oleaceae) from Hoggar, Algeria.
Article in Annals of botany, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed.
- Genomic insights into population structure and conservation of wild olive (Frontiers in plant science · 2026Article
- One hundred single-copy nuclear sequence markers for olive variety identification: a case of fingerprinting database construction in China.Molecular breeding : new strategies in plant improvement · 2023Article
- Phylogenomics of the Olea europaea complex using 15 whole genomes supports recurrent genetic admixture together with differentiation into seven subspecies.BMC biology · 2023Article
- Morphological and Eco-Geographic Variation in Algerian Wild Olives.Plants (Basel, Switzerland) · 2022Article
- Contrasting Genetic Footprints among Saharan Olive Populations: Potential Causes and Conservation Implications.Plants (Basel, Switzerland) · 2021Article
- Algerian Olive Germplasm and Its Relationships with the Central-Western Mediterranean Varieties Contributes to Clarify Cultivated Olive Diversification.Plants (Basel, Switzerland) · 2021Article
- From glacial refugia to hydrological microrefugia: Factors and processes driving the persistence of the climate relict treeEcology and evolution · 2021Article
- Accessing Ancestral Origin and Diversity Evolution by Net Divergence of an Ongoing Domestication Mediterranean Olive Tree Variety.Frontiers in plant science · 2021Article
- The endangered Saharan cypress (Cupressus dupreziana): do not let it get into Charon's boat.Planta · 2020Review
- Paternity tests support a diallelic self-incompatibility system in a wild olive (Ecology and evolution · 2020Article
- SILVOLIVE, a Germplasm Collection of Wild Subspecies With High Genetic Variability as a Source of Rootstocks and Resistance Genes for Olive Breeding.Frontiers in plant science · 2020Article
- High Biodiversity Arises from the Analyses of Morphometric, Biochemical and Genetic Data in Ancient Olive Trees of South of Italy.Plants (Basel, Switzerland) · 2019Article
- Article
- Spatial genetic structure and diversity of natural populations of Aesculus hippocastanum L. in Greece.PloS one · 2019Article
- Global DNA Methylation Patterns Can Play a Role in Defining Terroir in Grapevine (Frontiers in plant science · 2017Article
- An ecological and evolutionary perspective on the parallel invasion of two cross-compatible trees.AoB PLANTS · 2016Review
- Molecular characterization of three common olive (Biotechnology, biotechnological equipment · 2014Article
- History of the invasive African olive tree in Australia and Hawaii: evidence for sequential bottlenecks and hybridization with the Mediterranean olive.Evolutionary applications · 2014Article
- High genetic diversity detected in olives beyond the boundaries of the Mediterranean Sea.PloS one · 2014Article
- Genetic biodiversity of Italian olives (Olea europaea) germplasm analyzed by SSR markers.TheScientificWorldJournal · 2014Article
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2 authors.
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Abstract
BACKGROUND AND
aimsThe Laperrine's olive (Olea europaea subsp. laperrinei) is an endemic tree from Saharan massifs. Its populations have substantially regressed since the Pleistocene and are presently distributed in a fragmented habitat. Long-term persistence of this taxon is uncertain and programmes of preservation have to be urgently implemented. To define a conservation strategy, the genetic diversity and breeding system of this tree have to be investigated.
methodsOne hundred and eleven ramets were prospected in the laperrinei populations from the Tamanrasset region, southern Algeria. Genetic polymorphism was revealed at nuclear and chloroplast DNA (cpDNA) microsatellite loci allowing a comparative assessment of the genetic diversity of laperrinei and Mediterranean populations based on bi-parental and maternal markers. Additionally, nuclear microsatellite markers enabled the genotypes to be identified unambiguously. KEY
resultsBased on nuclear microsatellite data, the total diversity was high (Ht=0.61) in laperrinei populations and similar to that observed in western Mediterranean populations. A substantial cpDNA diversity (Ht=0.19) was also observed. Genetically identical ramets originated from the same stump (which can cover >80 m2) were identified in each population. Sixteen per cent of genets exhibited more than one ramet. In addition, several cases of somatic mutations were unambiguously revealed in distinct ramets stemming from the same stump.
conclusionsThese data show that highly isolated and small laperrinei populations are able to maintain a high genetic diversity. This supports the existence of relict trees persisting for a very long time (probably since the last humid transition, 3000 years ago). It is proposed that the very long persistence associated with an asexual multiplication of highly adapted trees could be a strategy of survival in extreme conditions avoiding a mutational meltdown due to reproduction in reduced populations.
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