Branch number of soybean is one of agronomic traits that closely related with yield in both individual and population levels; therefore, discovering genes related to branching is important for molecular breeding in soybean. In this study, 183 genes related to plant branch development had been collected through GO classification and literatures. Based on the principle of similar sequences and conserved domains, 406 genes possibly related to branching had been identified at the whole genome level in soybean. On the other hand, integration of published QTLs related to branching was carried out using BioMercator2.1, and a total of 35 QTLs was located on 12 chromosomes. Co-localization analysis of QTLs and genes related to branching suggested that 57 genes were located in 20 intergrated QTL regions. These results provided useful in-formation for fine mapping of QTLs related to branching and molecular biology study of branch development in soybean.
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Tan et al. (2013) studied this question.
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