ArticleBMC plant biology2024
Systematic identification and expression analysis of bHLH gene family reveal their relevance to abiotic stress response and anthocyanin biosynthesis in sweetpotato.
Article in BMC plant biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 11 citations in OpenAlex.
- The CPK3-mediated cytosolic-nuclear translocation of bHLH107 recruits HY5 to regulate the CuJournal of advanced research · 2026Article
- Integrated bioinformatics and transcriptomic analysis of sweetpotato MYB genes reveals IbMYB150's role in salt tolerance.Plant cell reports · 2026Article
- Identification of the BBX gene family and SmBBX5 positively regulate anthocyanin accumulation in eggplant (Solanum melongena L.).BMC genomics · 2025Article
- Evolutionary analysis of DELLA proteins in sweet potato and related species reveals their roles in development and stress responses.Frontiers in plant science · 2025Article
- Study on the changes of miRNAs and their target genes in regulating anthocyanin synthesis during purple discoloration of cauliflower curd under low temperature stress.Frontiers in plant science · 2024Article
- Genome-wide identification of the bHLH gene family inFrontiers in plant science · 2024Article
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Authors and funding
10 authors at 1 institution in 1 country.
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Abstract
backgroundbHLH transcription factors play significant roles in regulating plant growth and development, stress response, and anthocyanin biosynthesis. Sweetpotato is a pivotal food and industry crop, but little information is available on sweetpotato bHLH genes.
resultsHerein, 227 putative IbbHLH genes were defined on sweetpotato chromosomes, and fragment duplications were identified as the dominant driving force for IbbHLH expansion. These IbbHLHs were divided into 26 subfamilies through phylogenetic analysis, as supported by further analysis of exon-intron structure and conserved motif composition. The syntenic analysis between IbbHLHs and their orthologs from other plants depicted evolutionary relationships of IbbHLHs. Based on the transcriptome data under salt stress, the expression of 12 IbbHLHs was screened for validation by qRT-PCR, and differential and significant transcriptions under abiotic stress were detected. Moreover, IbbHLH123 and IbbHLH215, which were remarkably upregulated by stress treatments, had obvious transactivation activity in yeasts. Protein interaction detections and yeast two-hybrid assays suggested an intricate interaction correlation between IbbHLHs. Besides, transcriptome screening revealed that multiple IbbHLHs may be closely related to anthocyanin biosynthesis based on the phenotype (purple vs. white tissues), which was confirmed by subsequent qRT-PCR analysis.
conclusionsThese results shed light on the promising functions of sweetpotato IbbHLHs in abiotic stress response and anthocyanin biosynthesis.
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