Overall, the identified BBX genes may be useful as functional genetic markers for multiple stress responses and plant developmental processes. The data indicated that many B-box genes (e.g., BrBBX13, BrBBX15, and BrBBX17) may contribute to plant development and growth as well as abiotic stress tolerance. Additionally, BrBBX expression profiles in different tissues and in response to various abiotic stresses (heat, cold, salt, and drought) or hormones (abscisic acid, methyl jasmonate, and gibberellic acid) were analyzed by qRT-PCR. Light-responsive cis-regulatory elements were detected in many of the BBX gene promoters. The Brassica BBX genes were classified into five subgroups according to phylogenetic relationships, gene structures, and conserved domains. napus (AC genome) revealed segmental duplications were the major contributors to the expansion of the Brassica BBX gene families. oleracea (C genome) and in the allotetraploid species B. A whole-genome identification, characterization, and evolutionary analysis (synteny and orthology) of the B-box gene families in the diploid species B. In this study, we identified 51, 52, and 101 non-redundant genes encoding B-box proteins in Brassica rapa ( BrBBX genes), B. However, there is relatively little information available regarding Brassica B-box genes and their expression.
![ravenscroft 275 motif 6 non-weighted ravenscroft 275 motif 6 non-weighted](https://img.youtube.com/vi/2rURgasAdQ0/maxresdefault.jpg)
![ravenscroft 275 motif 6 non-weighted ravenscroft 275 motif 6 non-weighted](https://i.ytimg.com/vi/oKZxbaCIVd0/maxresdefault.jpg)
The B-box zinc-finger transcription factors are important for plant growth, development, and various physiological processes such as photomorphogenesis, light signaling, and flowering, as well as for several biotic and abiotic stress responses.