Dynamics and conservation of genetic diversity in forest ecosystems

Kremer, Antoine; Reviron, Marie-Pierre

doi:10.1016/j.foreco.2004.05.001

Cited by 5 publications

(5 citation statements)

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“…In this regard, data obtained for 14 Scots pine populations from North-eastern Poland (present study) reflect similar level of the genetic variation (F st = 0.031), and no spatial correlation between stand location and genetic distance was found. Such a situation is often described for many forest-tree species natural populations, and reflects forest-tree characteristics, such as longevity, long-distance pollen dispersion, and great potential for adaptation to various climatic changes [1,2,6,26,41,60,61].…”

Section: Discussionmentioning

confidence: 99%

“…Both adaptive and neutral markers (e.g., microsatellites) present many advantages in modern forest genetics [60,65,75,78,80]. In order to find the genetic basis of the neutral or adaptive diversity of natural populations, simulations based on adaptive traits, quantitative trait loci, and neutral markers are performed [81].…”

Section: Discussionmentioning

confidence: 99%

“…The present genetic structure to the Scots pine stands in Europe has been largely influenced by climatic and environmental factors [58]. Above all, the recolonization of the continent after the last glaciation period contributed to the rapid expansion of Scots pine populations from their South-European and Central Russian refuges to the North of the continent [40,[59][60][61]. Second, the distribution of many Scots pine stands in the European landscape reflects the present situation and socioeconomic changes, for example, privatization, the increased demand for wood, deforestation, and reforestation [58].…”

Section: Object Of the Studymentioning

confidence: 99%

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Microsatellite Markers in Analysis of Forest‐Tree Populations

Nowakowska¹

2016

Microsatellite Markers

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The present state of knowledge regarding the genetic diversity of forest tree species has been greatly improved with the development of the powerful research tool that the microsatellite markers represent. These noncoding sequences are considered to be neutral, highly polymorphic, and species specific. The usefulness of the microsatellite markers was recently proven by the determination of differentiation at inter-and intrapopulation level, gene flow in natural forest-tree populations, heritability processes, and sustainable management of forest genetic resources in many natural forest stands. In this chapter, I aim to describe the practical approach of microsatellite markers, used in determination of genetic structure of 14 Scots pine populations from North-eastern Poland. Investigated pine populations exhibited high genetic parameter variation, for example, mean PIC = 79.3, Shannon Index I = 2.488, observed (H O = 0.778) and expected (H E = 0.849) heterozygosity. Low level of F st = 0.031 demonstrated that studied populations are more differentiated within than among stands, which were grouped into one cluster of genetic similarity. In conclusion, the present distribution of genetically related populations of Scots pine in North-eastern Poland seems to reflect the historical events such as postglacial colonization of Poland from different European refugia and/or human management carried out in the past.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Object Of the Studymentioning

confidence: 99%

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Microsatellite Markers in Analysis of Forest‐Tree Populations

Nowakowska¹

2016

Microsatellite Markers

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“…Many studies have been devoted to the genetic structure analysis relying on nuclear, mitochondrial and chloroplast DNA markers, as well as to the transmission of favourable breeding and resistance traits from mature trees to their progeny (Hamrick, Nason 2000;Sperisen et al 2001;Avise 2004;Kremer, Reviron 2004;Neale, Ingvarsson 2008). In Poland, the research concerning genetic structure of forest tree populations was carried out, for example, Scots pine and Norway spruce based on nuclear and mitochondrial DNA markers, including RAPD, STS, PCR-RFLP and SSR (Csaikl et al 2002;Dering, Lewandowski 2009;Nowakowska 2009Nowakowska , 2010.…”

Section: Introductionmentioning

confidence: 99%

Genetic variability of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies L. Karst.) natural regeneration compared with their maternal stands

Nowakowska

Zachara

Konecka

2014

Forest Research Papers

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Abstract:The genetic variability and biodiversity of tree populations ensure the stability and sustainability of forest ecosystems. New research tools based on molecular DNA markers enable precise characterisation of forest genetic resources, i.e. detection of different allele frequencies in mature trees and progeny populations. The paper describes the genetic structure of mature stands of Scots pine (Pinus sylvestris L.) in Oława Forest District and Norway spruce (Picea abies L. Karst.) in Jawor Forest District and stands of their respective progeny.In the Scots pine stand, there was a slight increase (0.6%) in heterozygosity level and a larger increase (4.9%) in the inbreeding coefficient of progeny trees. In the Norway spruce stand, despite a small reduction (0.9%) in heterozygosity, a similar increase (4.6%) in the inbreeding coefficient of progeny was revealed. In both stands, allele richness and the partition probability of basic clustering were high. Both pine and spruce adults and progeny trees were characterised by high levels of genetic similarity (96% and 79%, respectively). Gene flow between the mature and progeny populations was high (N m > 1) for both Scots pine and Norway spruce.Conservation of the gene pool within forest tree stands requires an increase in the proportion of natural regeneration. To estimate the extent to which genes are transmitted between adult trees and their progeny, more studies are needed, especially taking into account the influence of silviculture measures, like selective tree cutting, on the genetic variability of the younger generation.These results confirm that the gene pool was conserved when transmitted between the stands studied, as well as highlight the usefulness of such a study for silvicultural purposes.

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“…An overall loss of genetic variability usually has deleterious effects on species fitness and may threaten the ability of populations to survive and persist via natural regeneration (REED, 2003;KREMER and REVIRON, 2004). Assessing the level and distribution of genetic diversity within tree species is crucial for their management and the development of effective conservation strategies, especially for rare species (HEDRICK, 2004).…”

Section: Introductionmentioning

confidence: 99%

Genetic Variation in the Qinghai-Tibetan Plateau Endemic and Endangered Conifer Cupressus gigantea, Detected Using RAPD and ISSR Markers

et al. 2008

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Assessing the level and distribution of genetic diversity of rare tree species is essential for their management and the development of effective conservation strategies. Cupressus gigantea is a long-lived endemic cypress of the west Qinghai-Tibetan Plateau and the tallest tree in its genus. The current populations of this species are fragmented and highly disturbed. We used RAPD (Random Amplified Polymorphic DNA) and ISSR (Inter-Simple Sequence Repeat amplification) markers to assess the genetic variation and population structure of this endangered cypress. The 15 RAPD primers used in this study amplified 108 reproducible bands, 49 (45.4%) of which were polymorphic, while the 12 ISSR primers amplified 94 bands, 65 (69.2%) of which were polymorphic. Analysis of Molecular Variance (AMOVA) indicated that 49.7% and 38.3% of the variation was attributable to differences between populations for the RAPD and ISSR markers, respectively; relatively high compared to values reported for other conifer species. These estimates were also similar to Gst values obtained from Nei’s gene diversity analyses (RAPD = 0.41 and ISSR = 0.36), and suggest that there is a high degree of population differentiation in this narrowly-distributed conifer. The genetic structure of this species has probably been shaped by its long life cycle and climatic changes during the Quaternary. The high degree of population differentiation in this species highlights the need for additional conservation measures, including measures to protect of all of the remaining populations. The substantial similarities between the results of the RAPD and ISSR analyses of samples from the same individuals indicate that they can be interpreted with high levels of confidence.

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Dynamics and conservation of genetic diversity in forest ecosystems

Cited by 5 publications

References 0 publications

Microsatellite Markers in Analysis of Forest‐Tree Populations

Microsatellite Markers in Analysis of Forest‐Tree Populations

Genetic variability of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies L. Karst.) natural regeneration compared with their maternal stands

Genetic Variation in the Qinghai-Tibetan Plateau Endemic and Endangered Conifer Cupressus gigantea, Detected Using RAPD and ISSR Markers

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