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A pipleline for genome assisted breeding to efficiently exploit useful alleles from rice germplasm
Rice (Oryza sativa L.) is one of the most important staple crops in the world, providing main energy source for more than half of the world’s population. It is even closely associated with economic and political stability in many developing countries of Asia and Africa. These days, moreover, amount of land suitable for the agriculture is shrinking due to a variety factors, such as rapid climate changes and industrializations, while rice eating human populations keeps growing. To meet the nutritional and socio-economic demands worldwide, dedicated efforts in developing superior rice varieties need to be reinforced, accumulating and combining beneficial alleles as much as possible from rice germplams. Here, we propose a pipeline for genome assisted breeding where new genomic technologies including GWAS, omics and evolutionary studies together with follow-up breeding programs are integrated. Once pinpointing candidates genes, the integrated genomics approach allows informed choice of parents for the following breeding program based on the haplotype information, in addition to providing precise molecular marker information. We also conducted proof-of-concept analysis, using various agriculturally important phenotypes for rice improvements.
