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Daniel Mihálik,Ľubica Nogová,Katarína Ondreičková,Marcela Gubišová,Jozef Gubiš,Edita Gregová,Ivana Dokupilová,Roman Drška,Ján Kraic 한국식품과학회 2013 Food Science and Biotechnology Vol.22 No.suppl1
Historical and local varieties are an important source of genetic diversity in connection with the wheat baking quality. By analysis of DNA from the coding part of the genome of the Slovak regional wheat (Triticum aestivum L.) variety ‘Trebišovská 76’, differences in the Dy subunit composition coded by locus Glu-1D were found. Comparing the newly found sequence with a generally used 1Dy12 (GenBank accession no. X03041)sequence, existence of a new high-molecular-weight glutenin subunit, which was marked as 1Dy12* (GenBank accession no. EU266533) was confirmed. The molecular weight of probable protein coded by 1Dy12* subunit reaches 72.35kDa comparing to the 1Dy12, which reaches 68.71 kDa. This difference is not likely to distinguish by SDS-PAGE. The easiest way for cereal genotyping according to baking quality is proteomic analysis. More exact and suitable method for genotype identification appears to be marker assisted selection using PCR.
Nina Sihelská,Zuzana Vozárová,Lukáš Predajňa,Katarína Šoltys,Martina Hudcovicová,Daniel Mihálik,Ján Kraic,Michaela Mrkvová,Otakar Kúdela,Miroslav Glasa 한국식물병리학회 2017 Plant Pathology Journal Vol.33 No.5
The complete genome sequence of a Slovak SL-1 isolate of Tomato mosaic virus (ToMV) was determined from the next generation sequencing (NGS) data, further confirming a limited sequence divergence in this tobamovirus species. Tomato genotypes Monalbo, Mobaci and Moperou, respectively carrying the susceptible tm-2 allele or the Tm-1 and Tm-2 resistant alleles, were tested for their susceptibility to ToMV SL- 1. Although the three tomato genotypes accumulated ToMV SL-1 to similar amounts as judged by semiquantitative DAS-ELISA, they showed variations in the rate of infection and symptomatology. Possible differences in the intra-isolate variability and polymorphism between viral populations propagating in these tomato genotypes were evaluated by analysis of the capsid protein (CP) encoding region. Irrespective of genotype infected, the intra-isolate haplotype structure showed the presence of the same highly dominant CP sequence and the low level of population diversity (0.08-0.19%). Our results suggest that ToMV CP encoding sequence is relatively stable in the viral population during its replication in vivo and provides further demonstration that RNA viruses may show high sequence stability, probably as a result of purifying selection.