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Genetic differentiation of European larch along an altitudinal gradient in the French Alps
- Source :
- Annals of Forest Science, Annals of Forest Science, Springer Nature (since 2011)/EDP Science (until 2010), 2015, 72 (5), pp.517-527. ⟨10.1007/s13595-015-0483-8⟩, Annals of Forest Science 5 (72), 517-527. (2015)
- Publication Year :
- 2015
- Publisher :
- Springer Science and Business Media LLC, 2015.
-
Abstract
- Key message[br/] Despite variable dynamics of genetic diversification at the different altitudinal levels, strong gene flow tends to standardize larch genetic diversity: the larch forest distributed along the altitudinal gradient can be regarded as a single population.[br/] [br/] Context[br/] While in forest tree species many studies focus on the structure of the genetic diversity at the natural range and at the forest stand levels, few studies have worked at intermediate levels like the landscape level.[br/] [br/] Aims[br/] We tried to determine to what degree altitude variation can affect the genetic diversity and the local structure of the genetic diversity of European larch (Larix decidua Miller) at the landscape level.[br/] [br/] Methods[br/] Using microsatellite markers, we determined the between- and within-plot genetic structure and the spatial genetic structure (SGS) of four altitudinal plots distributed between 1,350 and 2,300 m a.s.l. in a European larch forest located in the French Alps.[br/] [br/] Results[br/] A homogenous neutral genetic structure was detected along this gradient. The intensity of the SGS was found to be stronger at 2,300 m and decreased at the 2,000-m plot. It was low or non-existent at the 1,700- and 1,350-m altitudinal levels.[br/] [br/] Conclusion[br/] Our results suggest that the genetic structure observed at the landscape level in this European larch forest was only slightly affected by climatic variation, human activities, or historical events. However, the variation of intensity of the SGS within the altitudinal plots indicates the existence of variable genetic dynamics, despite the globally uniform genetic structure along the altitudinal gradient.
- Subjects :
- 0106 biological sciences
Microsatellite markers
[SDV]Life Sciences [q-bio]
genetic diversity
spatial genetic structure
Larix decidua
microsatellite markers
mountain
population structure
Population
Forest management
flux de gènes
Population genetics
Spatial genetic structure
Population structure
010603 evolutionary biology
01 natural sciences
Genetic diversity
mélèze
pcr
Genetic variation
alpes françaises
Mountain
education
gradient altitudinal
education.field_of_study
Vegetal Biology
dynamique des peuplements forestiers
Ecology
biology
aire de répartition
European Larch
facteur climatique
Forestry
15. Life on land
biology.organism_classification
marqueur microsatellite
diversité génétique
Genetic structure
Larch
Biologie végétale
010606 plant biology & botany
Subjects
Details
- ISSN :
- 1297966X and 12864560
- Volume :
- 72
- Database :
- OpenAIRE
- Journal :
- Annals of Forest Science
- Accession number :
- edsair.doi.dedup.....3c51ee6bb275a0fc0396c652b0672da7
- Full Text :
- https://doi.org/10.1007/s13595-015-0483-8