Genome-Wide Identification of the Whirly Gene Family and Its Potential Function in Low Phosphate Stress in Soybean ().

The () gene family, functioning as transcription factors, plays an essential role in the regulation of plant metabolic responses, which has been demonstrated across multiple species. However, the gene family and its functions in soybean remains unclear. In this paper, we conducted genome-wide screening and identification to characterize the gene family. Seven members were identified and randomly distributed across six chromosomes. The phylogenetic evolutionary tree of genes in soybean and other species was divided into five clades. An in-depth analysis revealed that segmental duplications significantly contributed to the expansion of , and the gene members may have experienced evolutionary pressure for purifying selection in soybeans. The analysis of promoter Cis-elements in suggested their potential significance in addressing diverse stress conditions. The expression patterns of exhibited tissue-specific variations throughout the different stages of soybean development. Additionally, six genes exhibited different responses to low phosphate stress. These findings will provide a theoretical basis and valuable reference for the future exploration of gene function.