Identification of QTL for Agronomic Traits, Oil yield, and Fatty Acid Composition in Jatropha curcas L.
September 30, 2015http://www.biotechnologyforbiofuels.com/content/8/1/160
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Cultivation of Jatropha curcas is currently hampered since purpose-bred cultivars are not yet available and marker-assisted breeding has not yet been implemented due to a lack of available marker–trait association studies. To identify the location of beneficial alleles, Andrew J. King, Luis R. Montes and Jasper G. Clarke performed quantitative trait loci (QTL) analysis for agronomic traits in two Jatropha mapping populations.
QTL were detected for traits contributing to oil yield, plant height, stem diameter, number of branches, total seeds per plant, 100-seed weight, seed oil content and fatty acid composition. By using a candidate gene approach and integrating physical mapping data from the Jatropha genome, they were able to locate a large number of genes involved in the biosynthesis of storage lipids onto the genetic map.
The QTL identified will serve as a useful starting point in the creation of new varieties of J. curcas with improved agronomic performance for seed and oil productivity.
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