| Summary: | The <i>GRAS</i> transcription factor is an important transcription factor in plants. In recent years, more <i>GRAS</i> genes have been identified in many plant species. However, the <i>GRAS</i> gene family has not yet been studied in <i>Avena sativa</i>. We identified 100 members of the <i>GRAS</i> gene family in <i>A. sativa</i> (<i>Avena sativa</i>), named them <i>AsGRAS1</i>~<i>AsGRAS100</i> according to the positions of 21 chromosomes, and classified them into 9 subfamilies. In this study, the motif and gene structures were also relatively conserved in the same subfamilies. At the same time, we found a great deal related to the stress of cis-acting promoter regulatory elements (MBS, ABRE, and TC-rich repeat elements). qRT-PCR suggested that the <i>AsGRAS</i> gene family (<i>GRAS</i> gene family in <i>A. sativa</i>) can regulate the response to salt, saline–alkali, and cold and freezing abiotic stresses. The current study provides original and detailed information about the <i>AsGRAS</i> gene family, which contributes to the functional characterization of <i>GRAS</i> proteins in other plants.
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