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Identification of the BBX gene family in blueberry at different chromosome ploidy levels and fruit development and response under stress
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Identification of the BBX gene family in blueberry at different chromosome ploidy levels and fruit development and response under stress
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Journal Article
Identification of the BBX gene family in blueberry at different chromosome ploidy levels and fruit development and response under stress
2025
Overview
Background
Blueberry (
Vaccinium
spp.) fruits are rich in flavonoids such as anthocyanins and have a high nutritional value. The zinc finger protein transcription factor B-box (BBX) plays important roles in plant growth and development, hormone response, abiotic stress, and anthocyanin accumulation. However, studies on the
BBX
family in blueberry are lacking.
Results
In total, 83 VcBBX and 24 VdBBX genes were identified in tetraploid and diploid blueberry, respectively. A correlation was observed between the number of BBX genes in blueberry and chromosome ploidy. Gene loss and specific replication during blueberry evolution may lead to an imbalance of quantitative relationship between VcBBX and VdBBX genes. The analysis of transcriptome and quantitative reverse transcription–polymerase chain reaction data revealed that the expression pattern of BBX genes depended on the developmental stage of blueberry fruit. Gibberellin inhibited the expression of most VcBBX genes. Abscisic acid promoted the expression of some members of the
BBX
family. The expression levels of
VcBBX15b4
,
VcBBX21a1
, and
VcBBX30a
in blueberry leaves were significantly downregulated under blue light treatment, whereas that of
VcBBX15c3
was significantly upregulated under red light treatment.
Conclusion
In total, 83 VcBBX and 24 VdBBX genes were identified in 2 types of blueberries. Fruit development and transcription profiles under different stresses were analyzed. These findings will support further investigation of how BBX genes are involved in regulating hormone treatment and light stress during the growth and development of blueberry.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
/ Analysis
/ Animal Genetics and Genomics
/ Biomedical and Life Sciences
/ Blueberry Plants - growth & development
/ Chromosomes, Plant - genetics
/ Diploids
/ Fruit - growth & development
/ Fruits
/ Gene Expression Regulation, Plant - drug effects
/ Genes
/ Genomes
/ Growth
/ Microbial Genetics and Genomics
/ Ploidies
/ Ploidy
/ Proteins
/ Stress
/ Stress, Physiological - genetics
/ Transcription Factors - genetics
/ Transcription Factors - metabolism
/ Trees
