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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Shikimate dehydrogenase (E.C. 1.1.1. 25 ShDH) alleles as potential markers for flowering phenology in Pinus sylvestris

100%
Prus-Glowacki W., Sukovata L., Lewandowska-Wosik A., Nowak-Bzowy R.
Dendrobiology
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2015
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tom 73
The aims of this study were 1) to determine the variability in the flowering phenology of Scots pine (Pinus sylvestris L.) clones in a seed orchard and 2) to compare the genetic structure and genetic markers (13 isozyme loci and 5 chloroplast and 3 nuclear DNA microsatellite loci) among groups of clones that are differentiated by flowering phenology. Using the timing of male inflorescence development, 57 plus trees represented by their clones in a seed orchard were classified into three phenological groups: early-, intermediate-, and late-flowering. The microsatellites showed no significant differences in the genetic structure of the analyzed phenological groups. However, the frequency of allele 2 at the shikimate dehydrogenase A locus (ShDH A 2) differed significantly between the groups of early- and late-flowering trees and between the groups of intermediate- and late-flowering trees. In addition, a significant difference in the frequencies of the genotype ShDH A 11 was observed between the intermediate- and late-flowering groups. Nei’s genetic distance indicated that the late-flowering group was the most genetically distant among the phenological groups. These results suggest that the ShDH A locus might be considered as isoenzymatic marker that differentiates these flowering groups of Scots pine clones. At several isozyme and DNA loci, the presence of private alleles in each group of pines was observed. However, these alleles cannot serve as markers of Scots pine flowering time because of their low frequencies.
2

A DNA metabarcoding study of a polyphagous beetle dietary diversity: the utility of barcodes and sequencing techniques

100%
Kajtoch L.
Folia Biologica
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2014
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tom 62
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nr 3
3
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Influence of plasmogenes on the productivity of morphogenesis in strawberry (Fragaria x ananassa Duch.)

100%
Zebrowska J., Pacek A.
Acta Agrobotanica
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2008
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tom 61
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nr 2
Plasmogenes are largely located in mitochondria or plastids and they can infl uence the inheritance of many plant characteristics. This phenomenon is called cytoplasmic inheritance and can be detected on the basis of the expression of a trait in progeny F1 obtained from single and reciprocal crosses. The aim of this study was to examine the cytoplasmic inheritance of in vitro productivity of morphogenesis in three genotypes of Fragaria x ananassa Duch., i.e. the cultivars ‘Dukat’, ‘Teresa’ and the breeding clone no. 590. Single and reciprocal crosses were done according to Griffi ng’s method 3. The value of general combining ability (GCA) indicated cv. ‘Teresa’ as the best maternal component for crossing and ‘Dukat’ as the worst. The negative reciprocal cross effects (rij) revealed the cytoplasmic inheritance for cv. ‘Dukat’ as maternal form and positive rij for the breeding clone no. 590 indicated the nuclear inheritance of morphogenetic ability. Cv. ‘Teresa’, as maternal component, showed nuclear inheritance of that trait in crossing with cv. ‘Dukat’ and with 590 cytoplasmic inheritance. The productivity of morphogenesis in strawberry depended on the parental combination and the direction of crossing.
4

Is the origin of Astasia longa an example of the inheritance of acquired characteristics ?

100%
Bodyl A.
Acta Protozoologica
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1996
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tom 35
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nr 2
5

Genetic verification of forest reproductive material examples of implementation

80%
Sabor J.
Electronic Journal of Polish Agricultural Universities. Series: Forestry
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2009
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tom 12
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nr 4
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