Transcriptional expression profiling of soybean genes under sulfur-starved conditions by RNA-seq

Soybean is an important grain and oil crop. Few researches focused on soybean sulfur utilization. Here, the tolerance of Yunmengliuyuehuaye（YM） and Qinyangdadou（QY） to low sulfur were evaluated. The gene expression profiles of roots and leaves of the two materials under the control（+S） and sulfur deficiency（-S） environments were analyzed via RNA resequencing. The results showed that YM was tolerance to low sulfur and QY was susceptibility to low sulfur. 9064 and 9795 differentially expressed genes（DEGs） were identified in leaves of YM and QY, and 3185 and 5006 DEGs were identified in roots of YM and QY, respectively. KEGG enrichment revealed that nine pathways were common in the two material leaves, of which MAPK signaling pathway-plant specially enriched more upregulated expressed genes. There were 18 common pathways in both roots. Nine of them responded consistently to low sulfur in YM and QY, of which four contained more up-regulated genes and five contained more downregulated genes. In the remaining nine