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    Tytuł:
    Allozyme differentiation in some European populations of Scots pine [Pinus sylvestris L.]
    Autorzy:
    Prus-Glowacki, W.
    Urbaniak, L.
    Zubrowska-Gil, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/68886.pdf
    Data publikacji:
    1993
    Wydawca:
    Polska Akademia Nauk. Instytut Genetyki Roślin PAN
    Tematy:
    drzewa iglaste
    genetyka roslin
    izoenzymy
    powinowactwo genetyczne
    allele
    genetyka populacji
    sosna zwyczajna
    dendrologia
    Pinus sylvestris
    Źródło:
    Genetica Polonica; 1993, 34, 2; 159-176
    0016-6715
    Pojawia się w:
    Genetica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmienność taborskiej sosny zwyczajnej (Pinus sylvestris L.) z Nadleśnictwa Miłomłyn wyrażona w analizie cech morfologii igieł oraz polimorfizmie mikrosatelitarnego DNA
    Variability of Scots pine (Pinus sylvestris L.) called Taborz pine (Forest District Milomlyn) expressed in analysis of morphology of needle traits and polymorphism of microsatellite DNA
    Autorzy:
    Lesiczka, P.
    Pawlaczyk, E.M.
    Łabiszak, B.
    Urbaniak, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1292493.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    Nadlesnictwo Milomlyn
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    zmiennosc
    sosna taborska
    igly sosny
    cechy morfologiczne
    DNA mikrosatelitarny
    polimorfizm genetyczny
    markery molekularne
    genom jadrowy
    genom chloroplastowy
    Scots pine from Tabórz
    needle morphology
    nuclear (nrSSR) and chloroplast (cpSSR) microsatellite DNA
    genetic
    variation
    Opis:
    Scots pine (Pinus sylvestris L.) is one of the most widespread forest trees in the world, ranging from southern Mediterranean mountains to eastern Siberia. 30 trees of Scots pine from the Miłomłyn Forest District were analyzed in terms of 7 nuclear and 8 chloroplast microsatellite DNA loci as well as 7 morphological needle traits. Nuclear microsatellites (Simple Sequence Repeats) have proved to be useful in studying phylogeographic and gene flow patterns in conifers and are being used to infer the demographic history of tree species. A population’s genetic diversity, in fact, represents an important criterion which could be applied in planning future forest management and breeding. Additionally, many elements of Scots pine morphology, including needle traits, are subject to environmental modification. However, the adaptability of those traits remains, to some extent, under genetic control. The trees we investigated here are called Tabórz pine located in the northeast of Poland. This population is described as one of the best in Poland and even in Europe regarding bio mass production, ductility and wood quality. The aim of the study was to determine variation and genetic structure within this population. An analysis of phenotypic differentiation showed that the traits which differed the most between individuals were needle length, the number of serrations per 2 mm of needle length along the right edge and the number of stomatal rows on the convex side of the needles. In Tabórz pine, we detected 30 different genotypes with 87 alleles as well as 28 haplotypes with 30 alleles. We also revealed a slight excess of homozygotes, but the population is still in Hardy-Weinberg equilibrium. The Scots pine population from Tabórz furthermore showed a higher level of genetic diversity compared to stands from other Polish and European regions. This diversity may be the main factor impacting on the population’s wood quality and its breeding value.
    Źródło:
    Leśne Prace Badawcze; 2017, 78, 2
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wybór elitarnych drzew matecznych sosny zwyczajnej i modrzewia europejskiego do założenia plantacji nasiennych 1,5 generacji
    Selection of elite plus trees of Scots pine and European larch for the establishment of 1.5 generation seed orchards
    Autorzy:
    Lewandowski, A.
    Kowalczyk, J.
    Litkowiec, M.
    Urbaniak, L.
    Rzońca, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/988981.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    plantacje nasienne
    zakladanie plantacji
    wybor drzew matecznych
    drzewa elitarne
    sosna zwyczajna
    Pinus sylvestris
    modrzew europejski
    Larix decidua
    seed orchards
    genetic gain
    forest tree breeding
    Opis:
    Forest tree breeding is principally concerned with the improvement of growth, wood quality and vitality of tree species of economic interest. In Poland, breeding programs started in the second half of the twentieth century with the choice of plus trees to establish seed orchards. At present, seed orchards are a predominant source for the production of genetically improved seeds of conifers. In our country, Scots pine is the main forest tree, occupying almost 80% of the forest area. Annually, about 30,000 hectares of pines are artificially planted, with only a few percent of seeds coming from seed orchards. European larch is an important admixture tree species of economic significance in some areas, such as the Świętokrzyskie Mountains. Unlike Scots pine, as much as 60% of larch seeds used for artificial regeneration comes from seed orchards. There are 179 seed orchards in Poland, occupying area of 1140 ha, including 48 Scots pine and 30 European larch ones of 384 ha and 207 ha, respectively. All of them are only first generation and were established with vegetative propagules of plus trees selected in wild stands for their outstanding phenotype. Based on the results from the evaluation of plus trees in progeny trials, we selected 40 Scots pine and 40 European larch elite trees to establish 1.5−generation seed orchards. The selected trees were also characterized for their level of genetic variation with the use of nuclear microsatellite loci. We found that the examined trees have a high level of genetic variation. The mean number of alleles per locus and expected heterozygosity were 12.4 and 11.9, and 0.752 and 0.806, for Scots pine and European larch respectively. The calculated parameters are comparable to that observed in the populations of these species in Poland and other European countries. Established genetic profiles will be used in the future for controlling and monitoring the identity of elite trees in the process of creating archives of clones and seed plantations of next generation.
    Źródło:
    Sylwan; 2017, 161, 11; 917-926
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Określenie pochodzenia wyłączonych drzewostanów nasiennych sosny rychtalskiej (Pinus sylvestris L.) z wykorzystaniem markerów mikrosatelitarnych
    Determination of the origin of the rychtal Scots pine (Pinus sylvestris L.) seed tree stands using microsatellite markers
    Autorzy:
    Wójkiewicz, B.
    Żukowska, W.B.
    Urbaniak, L.
    Kowalczyk, J.
    Litkowiec, M.
    Lewandowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/985719.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    sosna zwyczajna
    Pinus sylvestris
    sosna rychtalska
    drzewostany nasienne
    pochodzenie roslin
    zmiennosc genetyczna
    analiza DNA
    markery mikrosatelitarne
    scots pine
    genetic variation
    gene pool
    genetic structure
    ssr markers
    Opis:
    The rychtal pine is one of the most valuable ecotypes of Scots pine (Pinus sylvestris L.) approved for the breeding purposes in Poland. However, it occupies stands typical for oaks and beeches as shown by the compatibility analysis of species composition in relation to the habitat type in which they occur. Such result raises some doubts in terms of the naturalness of the rychtal pine and calls its history and origin into question. In the present study, we used the set of nuclear microsatellite markers to characterize and compare the gene pool composition of the selected seed tree stands of the rychtal pine with 200−year−old pine trees which grow at the Syców Forest District (SW Poland). We aimed to know to what extent the set of alleles specified for the group of the oldest trees from natural habitats is represented in the younger forest tree stands of the rychtal pine. The analysis of molecular variance (AMOVA) and clustering analysis showed that the gene pool of the studied pine populations was homogenous (FST=0,02%, K=1). The parameters of genetic variation were similar for all populations except for the mean number of alleles. On average, 25 new alleles were found in two rychtal pine seed tree stands as compared to the set of alleles found in the group of old pine trees. However, all alleles defined for old pines were also present in the gene pool of younger rychtal pine forest stands. The differences in the gene pool richness result most likely from quite high differences in the number of individuals analyzed from each population. In conclusion, our results indicate the common origin of the studied Scots pine populations.
    Źródło:
    Sylwan; 2019, 163, 08; 637-644
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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