The B-BOX (BBX) proteins are an important class of zinc-finger transcription factors involved in the regulation of plant growth and development, and have been identified in many plant species. However, there is no systematic study of common wheat (Triticum aestivum L.) BBX genes. Through comprehensive bioinformatics analysis, we identified and characterised 96 BBX genes from wheat, and provided the genes with a unified nomenclature. We describe the chromosomal location, gene structure, conserved domains, phylogenetic relationships and promoter cis-elements of TaBBX family members. The expression patterns under different conditions, especially under different hormones and light–dark conditions, were studied in detail. According to the diversity of conserved domains, we divided TaBBX proteins into five subfamilies. Gene-duplication analysis showed that duplication of chromosome segments was the main reason for the expansion of the TaBBX gene family. Detecting the expression profiles of six TaBBX genes in different tissues by quantitative real-time PCR, we found that the six genes are regulated under light–dark treatment, and that some TaBBX genes (TaBBX2.11, TaBBX2.13, TaBBX2.15 and TaBBX3.10) are strongly induced by the plant hormones abscisic acid, indole-3-acetic acid and salicylic acid. Our analysis of wheat BBX genes at the genomic level will provide a solid foundation for further identifying the functions of specific genes in light stress responses.

B-BOX（BBX）蛋白是一类重要的锌指转录因子，参与调节植物的生长和发育，并已在许多植物物种中得到鉴定。但是，没有对普通小麦（Triticum aestivum L.）BBX基因的系统研究。通过全面的生物信息学分析，我们鉴定和鉴定了小麦的96个BBX基因，并为这些基因提供了统一的命名法。我们描述了染色体定位，基因结构，保守结构域，亲缘关系和子顺的-elements TaBBX家庭成员。详细研究了在不同条件下，尤其是在不同激素和明暗条件下的表达模式。根据保守域的多样性，我们将TaBBX蛋白分为五个亚家族。基因重复分析表明，染色体片段的重复是TaBBX基因家族扩展的主要原因。通过定量实时PCR检测了六个TaBBX基因在不同组织中的表达谱，我们发现这六个基因在光暗处理下受到调节，并且一些TaBBX基因（TaBBX2.11，TaBBX2.13，TaBBX2.15和TaBBX3.​​10）是由植物激素脱落酸，吲哚-3-乙酸和水杨酸强烈诱导的。我们在基因组水平上对小麦BBX基因的分析将为进一步鉴定特定基因在光胁迫反应中的功能提供坚实的基础。