Progress of quantitative trait locus mapping in cotton
Most of important economic traits of cotton, including yield and yield components, fiber quality, plant architecture, disease and stress resistance, physiological characters et al. are quantitatively inherited, which are determined by both genetic and environmental factors. Nowadays, with the development of molecular biotechnology, distinctive progress has been made in cotton genome research, which provides a solid basis for cotton quantitative trait locus (QTL) mapping. In this paper, progress of cotton QTL mapping and marker-assisted selection (MAS) in the last more than ten years is reviewed. The existing problems are analyzed and the future direction of QTL mapping is proposed.