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    Tytuł:
    Charakterystyka zmiennosci genetycznej sosny napiwodzko-ramuckiej i spalskiej na podstawie analiz mitochondrialnego DNA
    Autorzy:
    Nowakowska, J.
    Rakowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/45663.pdf
    Data publikacji:
    2005
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    DNA mitochondrialny
    sosna napiwodzko-ramucka
    zmiennosc genetyczna
    markery genetyczne
    genetyka roslin
    populacje roslin
    sosna zwyczajna
    lesnictwo
    struktura genetyczna
    sosna spalska
    Pinus sylvestris
    drzewa lesne
    Źródło:
    Leśne Prace Badawcze; 2005, 2; 73-91
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    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:
    Zastosowanie regionu ITS1/2 rDNA i 18S rDNA do badania mykobioty gleby leśnej
    Use of ITS1/2 rDNA and 18S rDNA in studies of the forest soil mycobiota
    Autorzy:
    Behnke-Borowczyk, J.
    Kwaśna, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/989532.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    gleby lesne
    mikroorganizmy glebowe
    grzyby glebowe
    struktura zbiorowisk
    metody badan
    metody molekularne
    DNA rybosomalny
    region ITS1/2
    region 18S
    detection
    forest
    its1/2 rdna
    ns1
    ns2
    18s rdna
    microorganisms
    mycobiota
    soil
    Opis:
    The aim of the studies was to check the usefulness of ITS1/2 rDNA and 18S rDNA regions in the molecular investigation of forest soil microbiota structure. Soil studied, originated from a 1−year−old plantation and a 40−year old stand of Scots pine located in Bierzwnik and Międzychów forest districts located 200 km apart. The hypothesis assumed that both approaches lead to the discovery of abundant microbiota communities with different structures and with rare common species. The environmental DNA was extracted with a Power Soil ® DNA Isolation Kit from two soil samples in each site. The ITS1/2 rDNA was amplified with specific primers ITS1 and ewfitsrev 1, and 18S rDNA with universal primers NS1 and NS2. PCR products were cloned into pGEM−T Easy. Inserts were primarily selected in blue/white screening on a X−gal medium. Representative clones were further selected in two separate RFLP analyses with HhaI and BsuRI restriction enzymes. Representative clones purified and sequenced using the Sanger Method in the DNA Research Centre (Poznań). Each sequence was identified to the lowest taxonomic rank. Ninety to 233 clones with DNA of 5−44 taxa including 3−37 taxa of fungi were obtained from 4 samples of soil. After application of ITS1/2 rDNA and 18S rDNA, the fungal DNA was detected respectively in 89,60−100,00% and 11,77−64,8% clones and the number of fungal species detected was respectively 12−37 and 3−19. Fungi were represented by four orders: Chytridiomycota, Zygomycota, Ascomycota and Basidiomycota. Both primers also amplified also DNA of other organisms (mostly from Animalia and Protista Kingdom) represented by 0−9 taxa. If compared, the application of forest soil microbiota structure with ITS1/2 rDNA and 18S rDNA led to detect a lower abundance of fungi and a bigger abundance of other organisms. Considering the higher number of clones and taxa recognized, the region of ITS1/2 rDNA was more effective in the studies of the soil microbiota structure. The region of 18S rDNA was efficient in local detection of Chytridiomycota and Zygomycota and of rare species of fungi from Ascomycota and Basidiomycota. Despite the deficiency of NCBI database the use of the 18S rDNA region in studies on fungal community the region should be included in molecular studies of fungal diversity. It is concluded that studies on the biodiversity of soil microorganisms need the application of a few independent methods of detection and identification.
    Źródło:
    Sylwan; 2016, 160, 07; 564-572
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ metodyki badań na ocenę struktury zbiorowisk mikroorganizmów w glebie leśnej
    Effect of the methodology of studies on the structure of the microorganisms communities in the forest soil
    Autorzy:
    Behnke-Borowczyk, J.
    Kwaśna, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/989286.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    gleby lesne
    mikroorganizmy glebowe
    grzyby mikroskopowe
    struktura zbiorowisk
    metodyka badan
    metody klasyczne
    metody molekularne
    startery NS1
    startery NS2
    DNA
    region 18S
    classical method of isolation
    fungi
    microorganisms
    ns1
    ns2
    18s rdna
    soil
    Opis:
    Two different communities of microorganisms were identified in soils by application of the classical method of fungi isolation (soil dilution, culturing on artificial media, morphotyping) and a molecular method (extraction of the environmental DNA, amplification with universal primers NS1 and NS2, cloning and sequencing of representative clones). No organisms were common to both communities. Apart from rare representatives of the Animalia, communities included single fungus−like Eucarya belonging to the Protista, Class Oomycota, and numerous fungi belonging to Chytridiomycota, Zygomycota, Ascomycota and Basidiomycota orders. In total, 88 species were identified in four soil samples. Fungi were mostly Ascomycota. The classical method was particularly effective in detection of fungi important for creation of phytosanitary conditions of soil, i.e. antagonists (Penicillium, Tolypocladium and Trichoderma) and potential stimulants (dark−pigmented Hormiactis candida, Humicola spp. and Phialophora spp.) of phytopathogens (including the common forest genera Armillaria and Heterobasidion). Application of the classical method allowed the detection of mycorrhizal Ascomycota from the genus Oidiodendron. Application of the molecular method allowed the detection of 13 mycorrhizal Basidiomycota. Although primers NS1 and NS2 were designed from a match with DNA of culturable organisms, they also amplified the DNA of non−culturable organisms. This emphasizes their potential usefulness in studies of the biodiversity of microorganisms in environmental samples. The shortage of reference sequences in the database discourages use of the 18S rDNA region in studies on fungal communities. The studies on the biodiversity of microorganisms need the application of a few independent methods of detection and identification.
    Źródło:
    Sylwan; 2016, 160, 06; 492-503
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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