38 research outputs found
A Solanum stoloniferum eredetű burgonya Y vĂrus immunitás gĂ©n (Rysto) finomtĂ©rkĂ©pezĂ©se Ă©s lokalizálása a tetraploid burgonya genomban = Fine mapping and localisation of potato virus Y immunity gene of Solanum stoloniferum (Rysto) in tetraploid potato genome
Jelen kutatás cĂ©lja a Solanum stoloniferum vad burgonya fajbĂłl származĂł burgonya Y vĂrus extrĂ©m rezisztencia gĂ©n (Rysto) finomtĂ©rkĂ©pezĂ©se Ă©s lokalizálása volt a tetraploid burgonya genomban. Munkánk során előállĂtottunk egy 1100 F1 egyedet tartalmazĂł tĂ©rkĂ©pezĹ‘ populáciĂłt, amely hasad az Rysto gĂ©nre nĂ©zve. Minden egyes genotĂpust hagyományos rezisztencia tesztekkel fenotipizáltunk, majd kĂ©t - az Rysto gĂ©nhez kapcsolt - markerrel elvĂ©geztĂĽk genotipizálásukat is. A populáciĂł 1:1 hasadási arányt mutatott, tehát a gĂ©n szimplex állapotban van jelen a rezisztens szĂĽlĹ‘ genomjában. A populáciĂłbĂłl 88 genotĂpust vĂ©letlenszerűen kiválasztva nĂ©gy kĂĽlönbözĹ‘ technikával megkĂsĂ©reltĂĽnk a gĂ©nnel szorosan kapcsolt további markereket azonosĂtani. Kutatásaink során Intron- targeting technikával azonosĂtottunk egy Ăşj markert a burgonya kataláz gĂ©njĂ©ben, amely kapcsolt a Rysto gĂ©nnel. Mivel a kataláz gĂ©n helyzete ismert, Ăgy a marker lehetĹ‘vĂ© tette a Rysto gĂ©n helyzetĂ©nek egyĂ©rtelmű meghatározását is a burgonya XII. kromoszĂłmájára. További Ăşjabb, a gĂ©nnel szorosan kapcsolt markert nem tudtunk azonosĂtani, azonban a detektált polimorf szekvenciákbĂłl rĂ©szleges kapcsoltsági tĂ©rkĂ©pet szerkesztettĂĽnk a tĂ©rkĂ©pezĹ‘ populáciĂł kĂ©t szĂĽlĹ‘partnerĂ©ben. A tĂ©rkĂ©p a kĂ©sĹ‘bbiekben alkalmas lehet egyĂ©b, a nemesĂtĂ©s szempontjábĂłl jelentĹ‘s gĂ©nek/tulajdonságok tĂ©rkĂ©pezĂ©sĂ©re is. | The aims of present research project were fine mapping and localisation of extreme resistance gene Rysto originating from Solanum stoloniferum in the tetraploid potato genome. In the research project a mapping population segregating for Rysto gene with 1100 F1 individuals was developed. The phenotype of each individual was determined with conventional serological methods, while their genotype was determined also based on the use of two markers linked to the Rysto gene. The results revealed 1:1 segregation ratio and indicates the presence of a single dominant resistance gene in simplex state in the genome of resistant parent. As a subset population 88 F1 individuals was randomly chosen from the mapping population and four different molecular techniques were applied to identify further markers linked to Rysto gene. During the project one new marker linked to the Rysto gene was identified in the catalase gene of potato by Intron targeting method. Because the chromosomal position of catalase gene is known, it allowed the exact localisation of Rysto gene on chromosome XII of potato. We could not detect additional new markers closely linked to the gene, however by the use of polymorphic sequences were constructed a partial linkage map in both parents of mapping population. In the future these maps could be used for the mapping of other genes/characters being important for breeding purposes
Access to Databases (Full Scale Pilot 7)
This report contains information gathered during the execution of E-ARK Pilot 7: SIP Access to Databases
Solanum stoloniferum alapĂş burgonya Y vĂrus immunitás gĂ©n (RYsto) molekuláris genetikai vizsgálata = Molecular genetic investigation of Solanum stoloniferum
A burgonya Y vĂrus (PVY) világviszonylatban az egyik legveszĂ©lyesebb kĂłrokozĂłja a burgonyának. A termĂ©st erĹ‘s fertĹ‘zĂ©s, Ă©s fogĂ©kony fajta esetĂ©n akár 100 %-kal is csökkentheti. Az ellene valĂł legcĂ©lravezetĹ‘bb vĂ©dekezĂ©si lehetĹ‘sĂ©g a rezisztens fajták termesztĂ©se. Ennek megfelelĹ‘en kutatási projektĂĽnk cĂ©lja a keszthelyi fajtákra jellemzĹ‘ S. stoloniferum vad burgonyafaj eredetű Rysto Y vĂrus extrĂ©m rezisztencia gĂ©n molekuláris genetikai vizsgálata, ezen belĂĽl a gĂ©nnel szorosan kapcsolt DNS markerek azonosĂtása, valamint az Rysto expressziĂłjával kapcsolatba hozhatĂł cDNS-ek izolálása volt. A munka során a White Lady fajtán dolgozva, AFLP Ă©s RAPD technikákat alkalmazva, a vizsgált gĂ©nhez nĂ©gy szorosan kapcsolt, a szakirodalomban publikált egyĂ©b Rysto markerektĹ‘l kĂĽlönbözĹ‘ markert azonosĂtottunk. A markerek megbĂzhatĂłságát 3 populáciĂłn is leellenĹ‘riztĂĽk. Meghatároztuk a markerek szekvencia sorrendjĂ©t, melynek alapján egy marker a paradicsom 12-es, 3 marker pedig a burgonya 5-ös kromoszĂłmáján lĂ©vĹ‘ szekvenciákkal mutatott magas homolĂłgiát. A White Lady fajtábĂłl mestersĂ©ges PVY fertĹ‘zĂ©s után kĂĽlönbözĹ‘ idĹ‘pontokban RNS-t izoláltunk, s elkezdtĂĽk first strand szintĂ©zist követĹ‘en olyan cDNS klĂłntárak kĂ©szĂtĂ©sĂ©t, melyek a gĂ©nizolálás kĂ©sĹ‘bbi kiindulási alapját jelenthetik. | The potato virus Y (PVY) is one of the most important potato pathogen worldwide. In case of severe infection and susceptible variety the yield reduction can reach 100 %. The most effective way of protection against PVY is the cultivation of resistant varieties. Accordingly the goal of our research project was the molecular study of Rysto extreme resistance gene originating from the wild potato species S. stoloniferum and being common in Keszthely?s bred potato varieties. Among this we focused on the identification of DNA markers tightly linked to the resistance gene as well as on the identification of cDNAs expressed as the effect of the expression of Rysto gene. During the study working on variety White Lady for markers tightly linked to the resistance gene was identified by the help of AFLP and RAPD techniques. These markers were proved to be different from all previously published Rysto markers. The reliability of the markers were proved on three different populations. Based on their sequencing data one of them showed high homology to a region of chromosome XII of tomato, while the other three to a region of chromosome V of potato. RNAs were isolated at different timing after artificial infection of White Lady with PVY. Later creation of cDNA libraries being useful as a starting point for a later gene isolation study was started after first strand synthesis
Preservation and access to records with geodata (Full Scale Pilot 5)
This report contains information gathered during the execution of E-ARK Pilot 5: Preservation and access to records with geodata
Ingest from government agencies (Full Scale Pilot 3)
This report contains information gathered during the execution of E-ARK Pilot 3: Ingest from government agencies
General pilot model and use case definition
This report describes the concepts and elements of the General Model of E-ARK pilot site activities