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Wyświetlanie 1-2 z 2
Tytuł:
The use of bulk segregant analysis to identify a RAPD marker linked to the Mla locus of barley
Autorzy:
Czembor, Paweł Cz.
Czembor, Jerzy H.
Powiązania:
https://bibliotekanauki.pl/articles/2198932.pdf
Data publikacji:
2004-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
barley
Blumeria graminis f. sp. hordei
bulked segregant analysis
DNA marker
Mla locus
RAPD
Opis:
Resistance to powdery mildew, Blumeria graminis f.sp. hordei, is a major goal of many barley breeding programs. Resistance conferred by genes located at Mla locus is commonly used by barley breeders for effective control of powdery mildew. The use of molecular markers may facilitate barley breeding for powdery mildew resistance. In this study, bulked segregant analysis (BSA) was used to determine random amplified polymorphic DNAs (RAPDs) markers linked to Mla locus. Thirty one homozygous (17 resistant and 14 susceptible) F3 families from a cross between variety Pallas and single plant line E 1059-1-1 carrying gene at Mla locus were used as plant material. A total of 385 random 10-mer primers were screened to identify polymorphism between the appropriate resistant and susceptible DNA bulks and parents in BSA analysis. Only one PCR marker OPAA3400 (primer sequence: 5’-TTAGCGCCCC-3’), amplified in polymerase chain reaction (PCR) proved close linkage and was positioned in distance of 10 cM from Mla locus with 5.0 LOD threshold.
Źródło:
Plant Breeding and Seed Science; 2004, 49; 41-49
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transformation of wild Solanum species resistant to late blight by using reporter gene gfp and msh2 genes
Autorzy:
Rakosy-Tican, Lenuta
Aurori, Adriana
Aurori, Cristian M.
Ispas, Gabriela
Famelaer, Ivan
Powiązania:
https://bibliotekanauki.pl/articles/2198986.pdf
Data publikacji:
2004-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Agrobacterium tumefaciens mediated transformation
DNA mismatch repair
gfp
nptII marker gene
Opis:
Green fluorescent protein (gfp) reporter gene and nptII marker gene were used to optimize Agrobacterium tumefaciens (agro) mediated transformation of wild Solanum genotypes resistant to late blight. Different genotypes of Solanum bulbocastanum, S. chacoense, S. microdontum and S. verrucosum were assessed for their regeneration ability on MS based media and for agro-mediated transformation. As the first step reporter genes were used to optimize transformation protocol for each species and then the transfer of genes involved in mismatch repair of DNA were attempted in Solanum chacoense. For transformation, either leaf or stem fragments were used. It was shown that gfp is a valuable and elegant tool for monitoring the efficiency of transformation or the occurrence of chimera in all genotypes. Transformation efficiency was dependent on a plant genotype. A number of genotypes have been successfully transformed and they expressed constitutively the bright green fluorescence of gfp without any side effects. The most recalcitrant species proved to be S. microdontum, which did not regenerate plants although different media and phytohormones had been used. The best protocol for S. chacoense transformation was also found to work in the transfer of msh2 genes. Msh2 isolated from Arabidopsis was used and transferred either as mutated (Apa) or antisense (As) gene. The integration of msh2-mutated gene into S. chacoense genome was demonstrated by PCR amplification and confirmed by RT-PCR for some of the putative transgenic clones. The implications of mismatch repair in homologous recombination and its importance for potato improvement are discussed. 
Źródło:
Plant Breeding and Seed Science; 2004, 50; 119-127
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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