Article
Clustering of QTL Conferring SCMV Resistance in Maize
Maydica
(2003)
Abstract
Sugarcane mosaic virus (SCMV) is an important
virus disease of maize (Zea mays L.) in Europe. In this
study, we mapped and characterized two major quantitative
trait locus ( QTL) regions conferring resistance to SCMV
in a maize population consisting of 121 F :\ lines from cross
F7 (susceptible) x FAP1360 (resistant). This population was
evaluated for SCMV resistance in replicated field trials
across two environments under artificial inoculation. Two
previously identified chromosome regions (chromosome 6S
and 3Ll containing QTL conferring resistance were mapped
with 24 SSR markers by composite interval mapping. Both
regions together explained between 33.0'% and 71.1 % of
the phenotypic variance for SCMV resistance according to
the stage of plant development. The Scnwl region harbored
two QTL rather than one QTL as identified in previous
studies. Clustering of QTL for SCMV resistance was
confirmed for at least one chromosome region.
Keywords
- QTL Mapping,
- SSR markers,
- SCMV resistance,
- Zea mays
Disciplines
Publication Date
2003
Publisher Statement
Published as Yuan, L., Dußle, C.M., Melchinger, A.E., Utz, H.F., Lübberstedt, T. (2003) Clustering of QTL conferring SCMV resistance to maize. Maydica 48: 55-62. Posted with permission.
Citation Information
L. Yuan, C.M. Dugle, A.E. Melchinger, H.F. Utz, et al.. "Clustering of QTL Conferring SCMV Resistance in Maize" Maydica Vol. 48 (2003) p. 55 - 62 Available at: http://works.bepress.com/thomas-lubberstedt/17/