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Cited by 31Chromosomal and Genetic VariationsGenetic diversity and population structurePlant Taxonomy and Phylogenetics

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Coexistence of diploids and triploids in a Saharan relict olive: Evidence from nuclear microsatellite and flow cytometry analyses

Besnard, Guillaume, Baali-Cherif, Djamel·2009·Comptes Rendus. Biologies
DOI 10.1016/j.crvi.2009.09.014
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Abstract

Polyploidy was recently reported in two endangered olive subspecies from North-West Africa. The origin of this phenomenon remains unclear. In the present study, 106 genotypes of a relict Laperrine's olive population form Hoggar (Algeria) were analysed using eight nuclear microsatellites. Diploid and triploid genetic profiles were observed. A flow cytometry analysis confirmed that trees displaying three alleles at several loci are effectively triploid. This report constitutes the first evidence for the coexistence of two ploidy types in an olive population. The triploid genotypes, probably in mean more vigorous than diploid trees, may be positively selected in the absence of sexual regeneration since a very long time, explaining their relative high frequency in the investigated population.

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Metadata

Authors
Besnard, G., & Baali-Cherif, D.
Affiliations
Imperial College London (GB)
Corresponding author
Besnard, Guillaume
ORCID
Besnard, Guillaume
Venue
Comptes Rendus. Biologies
Publisher
MathDoc/Centre Mersenne
Published
2009-10-23
Volume
332
Issue
12
Pages
1115-1120
ISSN
  • 1631-0691 (ISSN-L)
  • 1768-3238
DOI
10.1016/j.crvi.2009.09.014
OpenAlex
W2162846306
Cited by
31
References
0
Citations by year
2025: 2 · 2023: 3 · 2021: 6 · 2020: 5 · 2019: 1 · 2018: 1 · 2017: 4 · 2016: 2 · 2014: 1 · 2013: 1 · 2012: 3
FWCI
2.02
Type
journal article
Language
en
Open access
closed
Locations
  • Comptes Rendus Biologies (publishedVersion)
  • PubMed (publishedVersion)
  • Biology Reports (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Chromosomal and Genetic Variations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Plant Taxonomy and Phylogenetics
Keywords
olive, Olea europaea, polyploidy, triploidy, diploids, relict populations, Hoggar, nuclear microsatellites, flow cytometry, positive selection
MeSH terms
Algeria, Algorithms, Altitude, Cell Nucleus, Data Interpretation, Statistical, Diploidy, Flow Cytometry, Genotype, Polyploidy, Genetic Variation, Microsatellite Repeats, Olea

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