Genetic and molecular basis of grass cell-wall biosynthesis and degradability. III. Towards a forage grass ideotype
Ralph, John | Guillaumie, Sabine | Grabber, John H. | Lapierre, Catherine | Barriere, Yves
Lignification of cell walls is the major factor controlling the digestibility of forage grasses. Thus far, from QTL analysis, about 15 locations involved in cell-wall lignification or digestibility have been identified in the maize genome, many of which colocalise with QTLs involved in corn borer susceptibility. Genetic diversity for enhancing cell-wall digestibility in maize must be identified in novel germplasm, but genetic engineering is also a relevant way both to design specific cell-wall characteristics for improved digestibility and to identify genes involved in these traits for further discovery of alleles of interest in grass germplasm.
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