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Leonova, I., Pestsova, E., Salina, E., Efremova, T., Röder, M., Börner, A. 2003. Mapping of the Vrn-B1 gene in Triticum aestivum using microsatellite marker. Plant Breeding 122 :209–212. Börner A

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Ma, J.X., Zhou, R.H., Dong, Y.S., Wang, L.F., Wang, X.M., Jia, J.Z. 2001. Molecular mapping and detection of the yellow rust resistance gene Yr26 in wheat transferred from Triticum turgidum L. using microsatellite markers. Euphytica 120

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Ahmad M. — Sorrells M E. (2002): Distribution of microsatellite alleles to Rht8 dwarfing gene in wheat. Euphytica. 123(2): 235–240. Sorrells M. E

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with microsatellite instability Cancer Res. 58 3455 – 3460 . [9]. S. Aebi B. Kurdi-Haidar R. Gordon 1996 Loss of DNA mismatch repair in acquired resistance to cisplatin Cancer Res. 56 3087 – 3090 . [10]. C. M. Ribic D

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Altinkut, A., Gozukirmizi, N. (2003) Search for microsatellite markers associated with water-stress tolerance in wheat through bulked segregant analysis. Mol. Biotechnol. 23, 97

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Orvosi Hetilap
Authors: Péter Gergics, Judit Tőke, Ágnes Szilágyi, Ágnes Szappanos, Zoltán Kender, György Barta, Miklós Tóth, Péter Igaz, Károly Rácz, and Attila Patócs

Számos monogénesen öröklődő kórképben a betegséget okozó gén teljes vagy részleges deletiója, illetve kópiaszámának megváltozása patogenetikai tényezőként jön számításba. A direkt DNS-szekvenálás nem alkalmas a gén nagy deletiójának, illetve kópiaszám-változásának kimutatására. Az összefoglalóban a szerzők áttekintik a nagy géndeletio vizsgálómódszereit, és két, monogénesen öröklődő betegségben végzett saját vizsgálataik példáján keresztül bemutatják a módszerek gyakorlati alkalmazásának lehetőségeit. Vázolják a géndeletio-vizsgálat hagyományos (kromoszóma-sávtechnika, Southern-blot, fluoreszcens in situ hibridizáció) és polimeráz láncreakcióra alapozott módszereit (denaturáló nagy felbontóképességű folyadékkromatográfia, kvantitatív valós idejű polimeráz láncreakció, mikroszatellitamarker-analízis, multiplex amplifikálhatópróba-hibridizáció, multiplex ligatióspróba-analízis), valamint a technikai és informatikai haladás legújabb vívmányait (komparatív genomhibridizálás, „array” analízis). Saját vizsgálataikban von Hippel–Lindau-szindrómában szenvedő betegekben kvantitatív valós idejű polimeráz láncreakció és multiplex ligatióspróba-amplifikálás alkalmazásával bemutatják a VHL, illetve congenitalis adrenalis hyperplasiás betegekben a CYP21A2 géndeletio-vizsgálat eredményeit és ezek klinikai jelentőségét.

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Bread wheat is the primary bread crop in the majority of countries in the world. The most important product that is manufactured from its grain and flour is yeast bread. In order to obtain an excellent bread, grain with high physical properties is needed for flour and dough. The Russian spring wheat cultivar Saratovskaya 29 is characterized by its exclusively high physical properties of flour and dough. The purpose of this work was to identify the chromosomes carrying the main loci for these traits in Saratovskaya 29 and to map them using recombinant substitution lines genotyped with molecular markers. A set of inter-varietal substitution lines Saratovskaya 29 (Yanetzkis Probat) was used to identify the “critical” chromosomes. The donor of individual chromosomes is a spring cultivar with average dough strength and tenacity. Substitution of 1D and 4D*7A chromosomes in the genetic background of Saratovskaya 29 resulted in a significant decrease in the physical properties of the dough. Such a deterioration in the case of 1D chromosome might be related to the variability of gluten protein composition. With the help of recombinant substitution double haploid lines obtained from a Saratovskaya 29 (Yanetzkis Probat 4D*7A) substitution line the region on the 4D chromosome was revealed in the strong-flour cultivar Saratovskaya 29, with the microsatellite locus Xgwm0165 to be associated with the unique physical properties of flour and dough. The detected locus is not related to the composition gluten proteins. These locus may be recommended to breeders for the selection of strong-flour cultivars. Additionally, a QTL associated with vitreousness of grain was mapped in the short arm of chromosome 7A.

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The use of genetic markers allows the study of polymorphism and genetic distances between maize lines in greater depth than can be achieved on the basis of phenotype and DUS traits. The analysis of polymorphism between 46 maize inbred lines with known genetic background and the classification of these lines in related groups was carried out by means of morphological description, isoenzyme analysis, RAPD analysis, and identification using gene-linked microsatellite (SSR) markers. The genetic distance or degree of relationship between the lines was determined using cluster analysis. Only a very limited extent of allele polymorphism could be detected in isoenzyme analyses; the 46 lines formed only 18 gel electrophoresis groups. Nevertheless, on the basis of RAPD and SSR markers, all the lines could be distinguished from each other. This was reflected by the PIC (polymorphism index content) values, which ranged from 0.04 to 0.55 (mean 0.27) for the various enzyme loci, while far higher values were obtained for RAPD and SSR markers (0.20–0.91, mean 0.61, and 0.54–0.90, mean 0.73, respectively). Due to the large number of lines, two lines, derived from each other or from common parents, were chosen from each related group as the basis for grouping the lines according to genetic background. It was found that, while the individual marker systems only partially reflected the actual relationships between the lines, a joint processing of the genetic markers, supplemented with morphological data, revealed a close correlation between the groups formed on the dendrogram and the genetic background.

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Dobrovolskaya, O.B., Arbuzova, V.S., Lohwasser, U., Röder, M.S., Börner, A. 2006. Microsatellite mapping of complementary genes for purple grain colour in bread wheat ( Triticum aestivum L.). Euphytica 150 :355

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CB Cargile MS Blazes 1998 PTEN mutations and mi-crosatellite instability in complex atypical hyperplasia, a precursor lesion to uterine

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