Journal
THEORETICAL AND APPLIED GENETICS
Volume 107, Issue 1, Pages 123-129Publisher
SPRINGER
DOI: 10.1007/s00122-003-1220-5
Keywords
Miscanthus; QTL; offspring cross; agronomic traits; biomass
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We have developed the first quantitative trait locus (QTL) analyses for agronomic traits in a cross between F-1.1 (P1) and F-1.7 (P7) entries of Miscanthus sinensis Anderss. Both lines are offspring of the cross between MS-90-2 and MS-88-110. A map based on random amplified polymorphic DNA markers previously constructed was used to perform the QTL analyses. This map was developed using a new mapping strategy that has been designated offspring cross. Eleven QTLs were detected for height, panicle height and diameter using the programme MAPQTL 4.0 and the multiple QTL method. QTL significance was determined using several analyses, including Kruskal-Wallis analyses, empirical determination of LOD critical values using permutation tests, QTLs validation with field data over 2 years and co-localization of QTLs for correlated traits. The results obtained could be the first step in developing a marker-assisted selection programming in this species for biomass production.
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