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    Tytuł:
    Śladami badań Władysława Jedlińskiego – określenie pochodzenia świerka na terenie Nadleśnictwa Skrwilno
    Following the research of Wladyslaw Jedlinski – determination of the origin of spruce in the Skrwilno Forest District
    Autorzy:
    Lewandowski, A.
    Litkowiec, M.
    Fischer, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008413.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Nadlesnictwo Skrwilno
    drzewa lesne
    swierk pospolity
    Picea abies
    pochodzenie roslin
    markery genetyczne
    DNA mitochondrialny
    origin
    picea abies
    mitochondrial marker
    Opis:
    Origin of Norway spruce in the territory of Skrwilno Forest District was studied with the use of mitochondrial mt−D02 region inherited through maternal line. The former suppositions of Jedliński, who claimed that the origin of spruce in this territory was natural, have been confirmed. Concurrently, it has been established that in the majority of tree stands subject to our study there occurs spruce of Carpathian origin. The obtained results together with the palinological data indicate that the northern border of spruce range in Poland runs right through the territory of Skrwilno Forest District and not about 100 km to the south from this place as has been claimed so far.
    Źródło:
    Sylwan; 2012, 156, 09; 703-709
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pochodzenie świerka pospolitego (Picea abies (L.) Karst.) w Nadleśnictwie Kartuzy
    Origin of Norway spruce (Picea abies (L.) Karst.) in the Kartuzy Forest District
    Autorzy:
    Lewandowski, A.
    Szydlarski, M.
    Litkowiec, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989990.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Nadlesnictwo Kartuzy
    drzewa lesne
    swierk pospolity
    Picea abies
    pochodzenie roslin
    badania genetyczne
    markery genetyczne
    DNA mitochondrialny
    origin
    picea abies
    mitochondrial marker
    mitotype
    Opis:
    The origin of the Norway spruce in the Kartuzy Forest District was verified using the maternally inherited mitochondrial DNA marker mt15−D02 that shows distinct geographical distribution in Europe. We analyzed 462 trees from 26 populations. The majority of trees were of Alpine origin and they were present in all populations at a frequency of 6−90% (mean 59%). About 30% of trees were of the Carpathian origin and the least abundant (11%) were trees of north−eastern origin. The trees carrying north−eastern type of the mitochondial DNA marker were found only in 13 populations, but at a very different frequency (from 5 to 88%). The possibility of natural origin of Norway spruce in the area of Kartuzy Forest District was shortly discussed.
    Źródło:
    Sylwan; 2014, 158, 07; 509-515
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Weryfikacja pochodzenia świerka pospolitego (Picea abies) w Nadleśnictwie Gołdap
    Verification of the origin of Norway spruce (Picea abies) stands in the Goldap Forest District
    Autorzy:
    Lewandowski, A.
    Litkowiec, M.
    Grygier, A.
    Dering, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/972766.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    region mt-D02
    lesnictwo
    Nadlesnictwo Goldap
    drzewa lesne
    swierk pospolity
    Picea abies
    drzewa mateczne
    pochodzenie roslin
    weryfikacja
    metody badan
    markery genetyczne
    DNA mitochondrialny
    origin
    mitochondrial marke
    Opis:
    The origin of the Norway spruce in the Gołdap Forest District from the north−eastern part of Poland was verified using the maternally inherited mitochondrial marker mt15−D02, which in Poland displays a geo−graphical specifity. We analyzed 730 trees from 29 populations and 21 plus trees. These populations included four reserves, four registered seed stand and 21 managed tree−stands. As a result of the performed analyses it was found that 8 out of 21 plus trees were non−native. Also 11 out of the 29 investigated pop−ulations contained trees of non−native origin. The scale of this phenomenon varies, although it encom−passes the entire region of the forest district.
    Źródło:
    Sylwan; 2012, 156, 07; 494-501
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Znaczenie zmienności genetycznej dla ochrony zasobów genowych cisa pospolitego w Europie
    Importance of genetic variation for conservation of English yew genetic resources in Europe
    Autorzy:
    Litkowiec, M.
    Plitta, B.P.
    Lewandowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/991598.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    cis pospolity
    Taxus baccata
    zasoby genowe
    zmiennosc genetyczna
    ochrona zasobow genowych
    genetic variation
    genetic conservation
    ex situ
    in situ
    english yew
    Opis:
    The genetic variation is considered to be a key factor for long−term survival of the species. The recognition of the existing genetic diversity is the preliminary phase in development of an effective strategy for conservation of forest tree species gene pools. Taxus baccata L. with a wide but scattered distribution in Europe is an example of rare and endangered species that needs both ex situ and in situ protection. The increase in fragmentation and isolation of populations and reduction in effective population size can cause erosion of the gene pool through increased genetic drift, increased inbreeding, reduced gene flow and decreased migration rate. As a result, local populations may be responsible for the loss of genetic variation, hence a decrease in their viability and adaptability. A few genetic analyses based on isozymes and DNA markers indicate that the yew, both in Poland and in other regions of Europe, is characterized by high levels of genetic variation within populations and moderate genetic differentiation between populations.
    Źródło:
    Sylwan; 2013, 157, 10; 754-760
    0039-7660
    Pojawia się w:
    Sylwan
    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:
    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
      Wyświetlanie 1-6 z 6

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