Integrated Analysis of Transcriptome and Metabolome Provides Insights into Flavonoid Biosynthesis of Blueberry Leaves in Response to Drought Stress.

Blueberries ( spp.) are extremely sensitive to drought stress. Flavonoids are crucial secondary metabolites that possess the ability to withstand drought stress.

Genome-Wide Analysis of the Universal Stress Protein Gene Family in Blueberry and Their Transcriptional Responses to UV-B Irradiation and Abscisic Acid.

Universal stress proteins (USPs) play essential roles in plant development, hormonal regulation, and abiotic stress responses. However, the characteristics and functional divergence of USP family members have not been studied in blueberry (). In this study, we identified 72 genes from the Genome Database for .

Genome-wide analysis of blueberry B-box family genes and identification of members activated by abiotic stress.

Background: B-box (BBX) proteins play important roles in regulating plant growth, development, and abiotic stress responses. BBX family genes have been identified and functionally characterized in many plant species, but little is known about the BBX family in blueberry (Vaccinium corymbosum).

Result: In this study, we identified 23 VcBBX genes from the Genome Database for Vaccinium (GDV).

MYB pathways that regulate UV-B-induced anthocyanin biosynthesis in blueberry ().

Ultraviolet-B (UV-B) promotes anthocyanin accumulation and improves fruit quality in plants. To explore the underlying network of MYB transcription factors that regulates UV-B-induced anthocyanin biosynthesis in blueberry (), we analyzed the response of transcription factor genes to UV-B treatment. Transcriptome sequencing analysis revealed that and expression were upregulated and were positively correlated with the expression of anthocyanin structural genes under UV-B radiation according to weighted gene co-expression network analysis (WGCNA) data.

UV-B induces the expression of flavonoid biosynthetic pathways in blueberry () calli.

Ultraviolet-B (UV-B) radiation is an environmental signal that affects the accumulation of secondary metabolites in plants. In particular, UV-B promotes flavonoid biosynthesis, leading to improved fruit quality. To explore the underlying molecular mechanism, we exposed blueberry () calli to UV-B radiation and performed a transcriptome deep sequencing (RNA-seq) analysis to identify differentially expressed genes (DEGs).

Conservation and Diversity of miR166 Family Members From Highbush Blueberry () and Their Potential Functions in Abiotic Stress.

MicroRNA166 (miR166) is highly conserved and has diverse functions across plant species. The highbush blueberry () genome is thought to harbor 10 miRNA166 loci (), but the extent of their evolutionary conservation or functional diversification remains unknown. In this study, we identified six additional loci based on conserved features of the miR166 family.

Arabidopsis CIB3 regulates photoperiodic flowering in an FKF1-dependent way.

Arabidopsis cryptochrome 2 (CRY2) and FLAVIN-BINDING, KELCH REPEAT, and F-BOX 1 (FKF1) are blue light receptors mediating light regulation of growth and development, such as photoperiodic flowering. CRY2 interacts with a basic helix-loop-helix transcription factor CIB1 in response to blue light to activate the transcription of the flowering integrator gene FLOWERING LOCUS T (FT). CIB1, CIB2, CIB4, and CIB5 function redundantly to promote flowering in a CRY2-dependent way and form various heterodimers to bind to the noncanonical E-box sequence in the FT promoter.