View source for Theoretical and Applied Genetics (2010) 120, 1621-1634

{{Publication
|Publication authors=Christina Roenn Ingvardsen, Yongzhong Xing, Ursula Karoline Frei and [[Thomas Lübberstedt]]
|Author Page=Thomas Lübberstedt
|Publication date=2010
|dc:title=Genetic and physical fine mapping of ''Scmv2'', a potyvirus resistance gene in maize
|Publication journal=Theoretical and Applied Genetics
|prism:volume=120 (8)
|prism:startingPage=1621
|Last page=1634
|DOI=10.1007/s00122-010-1281-1
|Publication abstract=Sugarcane mosaic virus (SCMV) is an important virus pathogen both in European and Chinese maize production, causing serious losses in grain and forage yield in susceptible cultivars. Two major resistance loci confer resistance to SCMV, one located on chromosome 3 (''Scmv2'') and one on chromosome 6 (''Scmv1''). We developed a large isogenic mapping population segregating in the ''Scmv2'', but not the ''Scmv1'' region, to minimize genetic variation potentially affecting expression of SCMV resistance. We fine mapped ''Scmv2'' to a region of 0.28 cM, covering a physical distance of 1.3426 Mb, and developed six new polymorphic SSR markers based on publicly available BAC sequences within this region. At present, we still have three recombinants left between ''Scmv2'' and the nearest polymorphic marker on either side of the ''Scmv2'' locus. The region showed synteny to a 1.6 Mb long sequence on chromosome 12 in rice. Analysis of the public B73 BAC library as well as the syntenic rice region did not reveal any similarity to known resistance genes. However, four new candidate genes with a possible involvement in movement of virus were detected.
|AbstractCC=Yes
|Research topic=resistance/tolerance/defence of host
|Is book=No
}}
{{Pest record
|Pest=Sugarcane mosaic virus
|Crop=Maize/corn (Zea mays)
|Quarantined=No
}}