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Title: Root research for crop improvement in Thailand
Other Titles: การวิจัยรากเพื่อการปรับปรุงพันธุ์พืชเศรษฐกิจในประเทศไทย
Authors: Patompong Saengwilai
Keywords: roots;crop improvement;Thai germplasm
Issue Date: 2014
Citation: ชีววิทยา
Abstract: Root traits influence water and nutrient acquisition efficiency. Our research in South Africa, Japan, and USA indicate the natural variation exists for root traits of several important crops such as maize (Zea mays L.), sorghum (Sorghum bicolor), and rice (Oryza sativa). Results of physiological studies using plants with related genetic backgrounds but contrast in root traits revealed physiological utilities of traits such as aerenchyma, root number, and root growth angle for enhanced nutrient acqusition from infertile soils. By using Genome-Wide Association Study (GWAS), genetic control of complex root traits could be identified. In addition molecular markers associated with the traits could be used in molecular plant breeding. At present, little is known about variation of root traits in Thai crop germplasm. Recently, we found a large phenotypic variation in the roots Thai rice suggesting the possibility that Thai rice germplasm could serve as a source of breeding for beneficial root traits. We suggest that root traits in Thai gemplasm of other crops should be examined to better our understanding of crop adaptation and utilization of such diverse resources.
Appears in Collections:Biology: International Proceedings

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