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Intraspecific somatic hybrids between 16 different diploid breeding lines of Solanum tuberosum L. were produced by PEG-induced fusion. Manually selected heterokaryons were cultured in a Millicells-CM using a post-fusion protoplast mixture. Plants were regenerated from calli derived from heterokaryons obtained from 10 out of 38 combinations of diploid lines. Of the tested putative somatic hybrids,...
This paper presents a method of Agrobacterium-mediated transformation for two diploid breeding lines of potato, and gives a detailed analysis of reporter gene expression. In our lab, these lines were also used to obtain tetraploid somatic hybrids. We tested four newly prepared constructs based on the pGreen vector system containing the selection gene nptII or bar under the 35S or nos promoter. All...
The rye genomic library, which consists of DNA fragments in the range of 0.5–1.1 kb, was screened for the presence of tri-and tetranucleotide and compound microsatellites. Of the 1,600,000 clones analysed, 102 clones were positive and 41 were suitable for SSR primer pair design. Twenty-six primer pairs amplified specific products, and six of them were capable of detecting polymorphism among 30 rye...
Three combinations of Agrobacterium tumefaciens strains and vectors were used in the transformation of selected Polish wheat cultivars. The combinations were: two hypervirulent strains, AGL1, containing the pDM805 binary plasmid, and EHA101, containing pGAH; and the common Agro strain LBA4404, harboring the super-binary pTOK233 vector. pDM805 contained bar under the control of Ubi1 promoter, pGAH...
Markers specific to diploid lines of cultivated potato were identified using the polymerase chain reaction (PCR), primed with arbitrary 10-mers generating RAPDs, or with semi-random primers targeting intron-exon semiconservative sequences of plant genes. One hundred and fifty RAPD primers and twelve semi-random primers were tested. Selected primers were subsequently used for verification of putative...
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