scholarly journals High genetic similarity between Polish and North European Scots pine (Pinus sylvestris L.) populations at nuclear gene loci

2014 ◽  
Vol 10 (4) ◽  
pp. 1015-1025 ◽  
Author(s):  
Witold Wachowiak ◽  
Błażej Wόjkiewicz ◽  
Stephen Cavers ◽  
Andrzej Lewandowski
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Genetic Similarity ◽  
Nuclear Gene ◽  
High Genetic Similarity

scholarly journals Genetic diversity of Scots pine (Pinus sylvestris L.) populations in Serbia revealed by SSR markers

2014 ◽  
Vol 66 (4) ◽  
pp. 1485-1492 ◽  
Author(s):  
Aleksandar Lucic ◽  
Vladan Popovic ◽  
Marija Nevenic ◽  
Danijela Ristic ◽  
Ljubinko Rakonjac ◽  
...  
Keyword(s):  
Pinus Sylvestris ◽  
Ssr Markers ◽  
Scots Pine ◽  
Correspondence Analysis ◽  
Genetic Similarity ◽  
Genetic Distances ◽  
Spatial Distance ◽  
Population Genetic Differentiation ◽  
Ssr Analysis ◽  
Interpopulation Variability

This paper presents the results of analysis of the genetic variability of seven Scots pine (Pinus sylvestris L.) populations in Serbia using SSR markers. Genomic DNA was isolated from seed tissue of all seven populations. The concentration of DNA samples was within the range of 1-4 mg/ml. Different PCR protocols were used depending on the type of SSR markers. The total number of fragments obtained by SSR analysis with 4 selected primers was 17 (only bands of strong and medium intensity were considered), of which 6 fragments were polymorphic (35.29%). In order to analyze the genetic similarity of the analyzed populations, graphs of correspondence analysis and UPGMA clusters were produced. By comparative analysis of the obtained dendrograms, the dependence of population genetic differentiation and spatial distance was observed, i.e. their isolation by natural barriers. The results indicate that in further research of interpopulation variability it is necessary, when graphically interpreting genetic distances, to use both methods of statistical analysis (UPGMA analysis and correspondence analysis).

scholarly journals Effect of Prunus serotina Ehrh. Volatile Compounds on Germination and Seedling Growth of Pinus sylvestris L.

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 846
Author(s):  
Aleksandra Halarewicz ◽  
Antoni Szumny ◽  
Paulina Bączek
Keyword(s):  
Pinus Sylvestris ◽  
Volatile Compounds ◽  
Scots Pine ◽  
Prunus Serotina ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Fraction ◽  
Black Cherry ◽  
Allelopathic Potential ◽  
Pine Seedlings ◽  
Phytotoxic Effect

In temperate European forests invaded by Prunus serotina Ehrh. (black cherry), a reduction in the spontaneous regeneration capacity of Pinus sylvestris L. (Scots pine) is observed. It could be caused by various factors, including allelopathic properties of this invasive plant. In this study the phytotoxic effect of P. serotina volatile compounds on P. sylvestris and the seasonal variation in this effect were assessed. Simple assays showed that volatiles emitted from P. serotina leaves significantly inhibited root growth of P. sylvestris seedlings. Their negative effect on stem growth was much weaker. The strongest phytotoxic effect on Scots pine seedlings was caused by the volatiles emitted from the youngest black cherry leaves. In fresh foliage of P. serotina, nineteen volatile organic compounds were identified by gas chromatography–mass spectrometry (GC–MS). The dominant compound was benzaldehyde. On the basis of tests of linalool alone, it was found that this monoterpene present in the volatile fraction has a strong allelopathic potential and inhibits germination, root elongation and shoot elongation of pine seedlings. The results of our research suggest that volatile compounds from P. serotina leaves could limited survival of P. sylvestris individuals in the seedling phase.

scholarly journals Genetic Similarity of Avena sativa L. Varieties as an Example of a Narrow Genetic Pool of Contemporary Cereal Species

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1424
Author(s):  
Magdalena Cieplak ◽  
Sylwia Okoń ◽  
Krystyna Werwińska
Keyword(s):  
Genetic Diversity ◽  
Avena Sativa ◽  
Genetic Similarity ◽  
Breeding Programs ◽  
Central European ◽  
Cereal Species ◽  
Genetic Pool ◽  
Selection Of ◽  
High Genetic Similarity

The assessment of the genetic diversity of cultivated varieties is a very important element of breeding programs. This allows the determination of the level of genetic differentiation of cultivated varieties, their genetic distinctiveness, and is also of great importance in the selection of parental components for crossbreeding. The aim of the present study was to determine the level of genetic diversity of oat varieties currently grown in Central Europe based on two marker systems: ISSR and SCoT. The research conducted showed that both these types of markers were suitable for conducting analyses relating to the assessment of genetic diversity. The calculated coefficients showed that the analyzed cultivars were characterized by a high genetic similarity. However, the UPGMA and PCoA analyses clearly indicated the distinctiveness of the breeding programs conducted in Central European countries. The high genetic similarity of the analyzed forms allow us to conclude that it is necessary to expand the genetic pool of oat varieties. Numerous studies show that landraces may be the donor of genetic variation.

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