Hanna Amoanimaa-Dede, Zhengwei Shao, Chuntao Su, Akwasi Yeboah, Hongbo Zhu

Gene; 2022 Apr 5; 817:146191. doi: 10.1016/j.gene.2022.146191. Epub 2022 Jan 11.

Abstract

In this study, genome-wide characterization of F-box proteins in sweet potato yielded 243 IbFBX genes, unevenly distributed on the 15 chromosomes of sweet potato. Gene duplication analysis suggested segmental duplication as the principal factor influencing the expansive evolution of IbFBX genes in sweet potato. Phylogenetic analysis clustered F-box proteins in sweet potato, Arabidopsis, and rice into six clades (I-VI). Gene structure analysis of the IbFBX genes revealed that most of the genes within the same clade were highly conserved. Expression profiles of IbFBX family genes in 9 different tissues and under stress conditions revealed that the IbFBXs were highly upregulated or downregulated in response to salt and drought stress, suggesting their significant roles in abiotic stress response and adaptation. Knowledge of the diverse functions and expression patterns of IbFBXs presents a solid theoretical basis for annotating the functions of IbFBXs and further facilitate the molecular breeding of sweet potato.

See: https://pubmed.ncbi.nlm.nih.gov/35026290/ or https://www.sciencedirect.com/science/article/pii/S0378111922000105?via%3Dihub

Fig. 3. Chromosomal localization of sweet potato F-box genes. 237 IbFBX genes were distributed on the 15 chromosomes. The position of the IbFBX genes can be determined using the left scale with chromosome numbers indicated at the top of each vertical bar.