Researchers Find the QTLs for Bioenergy Traits in Switchgrass
June 24, 2015http://link.springer.com/article/10.1007/s12155-015-9629-7/fulltext.html
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Genetic and genomic resources have recently been developed for the bioenergy crop switchgrass (Panicum virgatum). Despite this, little research has focused on finding loci involved in natural variation of bioenergy traits. Quantitative trait locus (QTL) mapping is typically used to discover loci that contribute to a trait. Once identified, they can be used to improve important traits through marker-assisted selection.
David B Lowry of Michigan State University, led researchers and conducted QTL mapping in Austin, Texas of a full-sib mapping population from a cross between tetraploid clones of two major switchgrass cultivars (Alamo-A4 and Kanlow-K5).
The team discovered 27 significant QTLs across 23 traits, including QTLs for biomass production. The study also found negligible effects of reduced watering on traits, with no significant effect on biomass production. The results of the study sets future crop improvements through marker-assisted selection breeding.
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