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    Wyświetlanie 1-11 z 11
    Tytuł:
    Zmienność genetyczna jodły pospolitej (Abies alba Mill.) zachowanej na terenie Nadleśnictwa Katowice
    Genetic variation of silver fir (Abies alba Mill.) preserved in the Katowice Forest District
    Autorzy:
    Masternak, K.
    Niebrzydowska, B.
    Głębocka, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1311865.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    Nadlesnictwo Katowice
    drzewa lesne
    jodla pospolita
    Abies alba
    zmiennosc genetyczna
    markery ISSR
    genetic diversity
    ISSR markers
    growth traits
    industrial pollution
    Opis:
    Environmental pollution greatly decreases a tree’s health and results in dieback of forest stands. Due to increasing industrial activity in the 20th century, silver fir became almost totally extinct in the Katowice Forest District. Only 19 individuals have survived to this day. The aim of the present study was to analyze growth characteristics and polymorphisms of 25 inter-simple sequence repeats (ISSR) of the preserved trees. The mean height of the inventoried silver firs was 19 m with a diameter at breast height (DBH) of 29 cm. Flowers were observed on few trees only. However, all trees were of high vitality without signs of fungal pathogen infections or insect outbreaks. Parameters of genetic variability, including mean effective number of alleles per locus and expected heterozygosity, were higher than described in the literature so far and they amounted to 1,659, 0,396 respectively.
    Źródło:
    Leśne Prace Badawcze; 2015, 76, 4; 315-321
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura klonalna wiązu polnego (Ulmus minor Mill.) w Polsce
    Clonal structure of field elm (Ulmus minor Mill.) in Poland
    Autorzy:
    Chudzińska, M.
    Litkowiec, M.
    Pałucka, M.
    Pasławska, A.
    Lewandowski, A.
    Kozioł, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/979539.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    dendrologia
    drzewa lesne
    wiaz polny
    Ulmus minor
    zmiennosc genetyczna
    markery genetyczne
    markery mikrosatelitarne
    clonality
    field elm
    genetic conservation
    genetic variation
    microsatellite markers
    Opis:
    Field elm (Ulmus minor Mill.) is distributed mainly across central and southern Europe. In Poland this species occurs in the lowlands and foothills, where it grows mainly in the floodplain forests along the rivers. U. minor exists in a variety of climatic and ecological conditions. It is capable to tolerate floods as well as drought. Currently, most populations of U. minor are small and fragmented resulting from human activity and Dutch elm disease. Moreover, in the natural field elm populations, vegetative propagation by root suckers or sprouting can be observed. All these factors may affect the level of genetic variation of U. minor populations in Poland. In the present study, we determined the level of genetic variation and the clonal diversity of twelve natural U. minor populations in Poland (407 individuals) using eight nuclear microsatellite loci. The obtained results indicate that the studied field elm populations are characterized by low level of genetic variation (He=0.382; Ho=0.555; A=7.0). Additionally, the high level of clonality in field elm populations was estimated. The clonality level of examined elm populations varied among them, and in some cases was very high. Out of the 407 individuals analysed for clonal structure only 61 multilocus genotypes were identified. Furthermore, only one genotype was identified in the three study populations of field elm, which means that in each of these populations all trees belong to one genet. The values of genotypic richness (R) were heterogeneous among populations, with mean 0.148. The knowledge on the genetic diversity and the clonal structure of U. minor populations is essential to make future decisions regarding conservation of genetic resources of this species in Poland.
    Źródło:
    Sylwan; 2019, 163, 10; 839-845
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka genetyczna świerka Schrenka (Picea schrenkiana) w gradiencie wysokościowym i geograficznym gór Tien-Szan w Kirgistanie
    Genetic characteristic of Schrenk spruce (Picea schrenkiana) in the altitudal and geographical gradient in Kyrgyz part of Tien-Shan mountains
    Autorzy:
    Magnuszewski, M.
    Nowakowska, J.A.
    Zasada, M.
    Orozumbekov, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/991108.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Kirgistan
    drzewa lesne
    swierk Schrenka
    Picea schrenkiana
    zmiennosc genetyczna
    polimorfizm DNA
    markery SSR
    zroznicowanie genetyczne
    ssr markers
    genetic differentiation
    genetic distance
    picea schrenkiana
    Opis:
    The study showed the genetic structure of nine Schrenk spruce stands, which represented altitude and geographical variants in the Tien−Shan mountains in Kyrgyzstan. Comparison between genetic structure of stands was based on frequencies of nuclear microsatellite (SSR) alleles occurring in three DNA loci. The total genetic differentiation of Schrenk spruce populations was low (FST=0.0651). Eight main groups of populations were distinguished in the dendrogram defined by Nei's genetic distances based on microsatellite markers.
    Źródło:
    Sylwan; 2014, 158, 05; 361-369
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Allele rzadkie i prywatne jako miara bogactwa puli genetycznej materiału sadzeniowego sosny zwyczajnej
    Rare and private alleles as a measure of gene pool richness in Scots pine planting material
    Autorzy:
    Konecka, A.
    Tereba, A.
    Studnicki, M.
    Nowakowska, J.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/979462.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    material sadzeniowy
    pula genowa
    allele rzadkie
    allele prywatne
    zmiennosc genetyczna
    markery mikrosatelitarne
    genetic differentiation
    microsatellite markers
    forest nursery
    pinus sylvestris l.
    Opis:
    In forestry management, artificially produced planting material is mainly used for renewal the tree population. Seedlings are cultivated in two systems: in the ground (the bare−root seedlings) and in controlled conditions (container seedlings). The aim of the study was to analyse the microsatellite markers of nuclear and chloroplast DNA, in terms of the number and frequency of rare, private, low frequency and common alleles in the planting material of Scots pine. The rare alleles included alleles occurring with less than 1% in analyzed group of seedlings and low frequency alleles occurred with a frequency of less than 25%. The private alleles were detected only in one group of seedlings. Genetic pools of seedlings from traditional (soil) and container production were compared. Planting material came from nurseries in the Olsztynek (N Poland) and the Oleszyce (S Poland) forest district. With the similar number of observed nDNA and cpDNA alleles in both analyzed locations, a higher number of rare, low frequency and private alleles was found within container seedlings. Most private alleles were a rare allele. Rare and private alleles are supposed to be responsible for adaptation to changing climatic conditions and a stressful environment. It seems reasonable to continue research on the meaning of rare and private alleles under conditions of strong selective pressure.
    Źródło:
    Sylwan; 2019, 163, 11; 948-956
    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
    Tytuł:
    Wyniki wstępnych badań nad zmiennością genetyczną oraz zróżnicowaniem genetycznym między populacjami wiązu górskiego (Ulmus glabra Huds.) w Polsce
    Results of preliminary research on genetic variation and genetic differentiation between Wych elm populations (Ulmus glabra Huds.) in Poland
    Autorzy:
    Chudzińska, M.
    Pałucka, M.
    Pasławska, A.
    Litkowiec, M.
    Lewandowski, A.
    Kozioł, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/985889.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    wiaz gorski
    Ulmus glabra
    zmiennosc genetyczna
    markery mikrosatelitarne
    populacje roslin
    zroznicowanie genetyczne
    Polska
    zasoby genetyczne
    wych elm
    genetic variation
    microsatellite markers
    genetic resources
    ex situ conservation
    Opis:
    Wych elm (Ulmus glabra Huds.) is a rare scattered forest tree species in Poland. First studies on genetic diversity of the species in its natural range in Poland give a good basis for the management and conservation of its genetic resources. In the present study, we determined the level of genetic variation and genetic differentiation of seventeen natural Wych elm populations in Poland using nine nuclear microsatellite loci. The number of analyzed individuals was 601. The level of genetic diversity of Polish populations of Wych elm corresponded with the results of the previous studies on this species in Europe. The populations show quite low level of genetic diversity of the species on the population level and quite high diversity on the interpopulation level. A total of 119 alleles was found, with average number per locus (A) equal 6.0 and allelic richness at medium high level (AR10=4.7). Observed (Ho) and expected (He) heterozygosity reached 0.583 and 0.602 respectively. The genetic differentiation between Polish populations of Wych elm occurred at a low level (Fst=0.089). Inbreeding depression may occur in the next generations (Fis=0.031). Genetic diversity between Wych elm populations in Poland may be the result of unfavorable random processes related to the reduction of population size resulting from elm disease. To better understand the processes related to the genetic diversity of Wych elm populations, research on field elm variation should be undertaken. Such studies may give an answer to the potential influence of introgression between these species on the genetic structure of the Wych elm. Both in situ as well as ex situ conservation measures are highly recommended to preserve genetic resources of this valuable noble hardwood species in Polish landscape.
    Źródło:
    Sylwan; 2018, 162, 09; 727-736
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmienność genetyczna cisa w wybranych rezerwatach Polski
    Genetic variability of yew in the selected Polish nature reserves
    Autorzy:
    Nawrocka-Grześkowiak, U.
    Skuza, L.
    Szucko, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/989813.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    cis pospolity
    Taxus baccata
    zmiennosc genetyczna
    rezerwaty przyrody
    populacje roslin
    zroznicowanie genetyczne
    markery genetyczne
    markery RAPD
    genetic diversity
    molecular markers
    taxus baccata
    nature reserv
    Opis:
    Genetic variability of yew (Taxus baccata L.) trees in seven nature reserves (Jasień, Czarne Człuchowskie, Choczewo, Wierzchlas, Wirty, Rokita and Mogilno/Stary Sącz) in Poland was investigated by RAPD methods. The results showed high genetic differences between populations ranging from 22.7% among the population of Stary Sącz and hedge (+) to 86.1% between Wierzchlas and Rokita (+). Based on the results of RAPD analyses, the studied populations were divided into three groups of similarity. The first include Jasień and Choczewo the populations, the second Rokita (+), hedge (–) and Stary Sącz, and the third remaining populations. High level of genetic diversity was showed among the studied populations, is essential to the adaptability of the population of yew. This theoretically increases the chances of survival species thanks to the possibility of passing to preferred combinations of genes to the future generations.
    Źródło:
    Sylwan; 2015, 159, 06; 491-497
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany w strukturze genetycznej naturalnego odnowienia dębu (Quercus petraea [Matt.] Liebl.) w odniesieniu do drzew matecznych
    Changes in genetic structure of sessile oak (Quercus petraea [Matt.] Liebl.) natural regeneration in relation to maternal trees
    Autorzy:
    Nowakowska, J.A.
    Michalska, A.
    Zachara, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/990023.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    badania genetyczne
    dab bezszypulkowy
    Quercus petraea
    odnowienia naturalne
    struktura genetyczna
    markery DNA
    drzewa potomne
    drzewa mlode
    zroznicowanie genetyczne
    drzewa mateczne
    zmiennosc genetyczna
    ssr markers
    genetic differentiation
    natural regeneration
    Opis:
    The genetic variability of sessile oak (Quercus petraea L.) mature stand and its natural progeny was investigated. Comparison between genetic structure of parental and progeny trees was based on frequencies of nuclear microsatellite (SSR) alleles occurring in three DNA loci. A slight (4%) increase of gene pool between oak mature and progeny trees was revealed by heterozygosity level estimation, maintaining 86.3% of genetic similarity between generations. Also allele richness, partition probability of basic clustering and inbreed coefficient proved the high genetic similarity between parental and progeny of investigated oak trees. The gene flow occurred within the stands as far as rare alleles were transmitted or new ones appeared in the progenies. The results highlight the necessity of such a study for silvicultural measures taken in order to proceed natural or artificial regeneration in forest tree stand.
    Źródło:
    Sylwan; 2014, 158, 02; 83-89
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pochodzenie jodły pospolitej (Abies alba Mill.) z Nadleśnictwa Osusznica w świetle badań DNA cytoplazmatycznego - ostoja jodły sudeckiej na Pomorzu?
    Origin of silver fir (Abies alba Mill.) from Osusznica Forest District revealed by cytoplasmic DNA markers - refugium of Sudety fir in Pomerania?
    Autorzy:
    Dzialuk, A.
    Czarnecki, J.
    Gout, R.
    Filipiak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/993081.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Nadlesnictwo Osusznica
    drzewa lesne
    zmiennosc genetyczna
    jodla pospolita
    Abies alba
    pochodzenie roslin
    markery genetyczne
    DNA chloroplastowy
    DNA mitochondrialny
    origin of silver fir
    abies alba
    mt dna
    cp dna
    genetic markers
    Opis:
    Genetic markers in mitochondrial and chloroplast DNA were analysed to determine the native status and possibly trace the origin of the silver fir (Abies alba Mill.) growing outside this species natural range in Osusznica Forest District (northern Poland). The provenance of the extralimital populations were determined through comparison with reference samples from the native range of silver fir in Poland and Ukraine. Our results suggest that the Sudety Mts. are the most probable region of the origin of fir from Osusznica. It also seems that the plus seed stands in Osusznica can be treated as a valuable archive of the genetic resources of the fir from the Sudety and, if necessary, may support program of this species restitution.
    Źródło:
    Sylwan; 2013, 157, 02; 139-148
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Porównanie zmienności genetycznej pokolenia matecznego i sztucznie wyhodowanego potomstwa sosny zwyczajnej na podstawie analiz DNA
    Comparison of the genetic variability of Scots pine trees and their progeny from nursery production based on DNA analyses
    Autorzy:
    Konecka, A.
    Tereba, A.
    Bieniek, J.
    Nowakowska, J.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/985843.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    sosna zwyczajna
    Pinus sylvestris
    zmiennosc genetyczna
    analiza DNA
    markery mikrosatelitarne
    drzewa mateczne
    drzewa potomne
    sadzonki z zakrytym systemem korzeniowym
    genetic diversity
    ssr markers
    forest nursery production
    pinus sylvestris l.
    Opis:
    The production of forest tree species in forest nurseries is performed via two main breeding systems: i) the traditional (conventional) way with the seedlings grown in soil, and ii) plants cultivated in the containers. The aim of the study was to assess the level of genetic variability in the populations of the mother stands and the progeny populations of Scots pine cultured with traditional way (in soil) and in containers in two nurseries in Olsztynek (N Poland) and Oleszyce (S Poland) forest districts. Four polymorphic microsatellite markers (SPAG 7.14, SPAC 11.6, SPAC 12.5 and SsrPt_ctg4363) were used to evaluate the genetic variability of the studied populations. The basic hypothesis assumed that higher gene pool characterizes the seedlings grown in the containers comparing to the seedlings grown in the ground. The results confirmed that. Seedlings from containerized breeding had larger gene pool and were more diverse than plants with conventional breeding, both in Olsztynek and Oleszyce. Our study revealed a significant human impact on shaping the pool of forest genetic resources of Polish forests at the early stage of nursery production and showed the need for a broader study on further stages of cultivation of forests.
    Źródło:
    Sylwan; 2018, 162, 01; 32-40
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie fenotypowe i zmienność tła genetycznego polskich proweniencji sosny zwyczajnej
    Phenotypic differentiation and genetic background variation of Polish provenances of Pinus sylvestris L.
    Autorzy:
    Hebda, A.
    Skrzyszewski, J.
    Wachowiak, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/987201.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    hodowla lasu
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    proweniencje krajowe
    zmiennosc fenotypowa
    zmiennosc genetyczna
    markery mikrosatelitarne
    DNA mikrosatelitarny
    polimorfizm loci
    zmiennosc adaptacyjna
    scots pine
    phenotypic differentiation
    neutral variation
    microsatellite markers
    environment correlation
    local adaptation
    Opis:
    We looked at the patterns of differentiation at a set of phenotypic traits of Scots pine populations derived from different environmental conditions of the species distribution range in Poland. The growth traits were tested over 47 years at the provenance trial experiment in the Carpathians. The phenotypic differentiation of the populations was compared to diversity estimates at a set of ten nuclear microsatellite markers. Scots pine populations were highly differentiated concerning diameter at breast high, stand volume, stem straightness and crown width according to the prove− nance and climatic zones. At the same time a low genetic diversity for microsatellite markers and no evidence of population structure was found among proveniences. Local populations from the Carpathian Mountains had lower genetic variation and weaker growth compared to lowland provenances. Among the tested populations Scots pine from lowlands were characterized by the great growth potential and good adaptation to the severe climate of the Carpathians. Populations that showed high quantitative traits differentiation were genetically homogenous at the neutral loci. The results indicate that there are some regions in the genome under selection that drive species adaptive variation.
    Źródło:
    Sylwan; 2017, 161, 04; 277-286
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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