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<p>The photoperiodic signal for floral induction is perceived by the leaves. The florigen was synthesized in leaves and then transmitted to the shoot apex to initiate the vegetative-to-reproductive phase transition in plant kingdom. The objective of this study was not only to explore the RNAs (including mRNA, lncRNA, miRNA, circRNA) correlating with flowering development but also to construct a competitive endogenous RNA (ceRNA) network to further uncover the mechanisms underlying flowering transition in sugar beet. The whole transcriptome sequencing was employed between long day and short day leaves by which a total of 518 differential expression mRNAs, 214 differential expression lncRNAs, 369 differential expression miRNAs, and 7 differential expression circRNAs were identified. Transcription factors and proteins emerging as crucial roles in flowering transition were uncovered, including ABC transporter, B3 domain-containing transcription repressor VAL1-like, EXORDIUM protein, FT-interacting protein 1, FLOWERING LOCUS T protein, TCP4 transcription factor, and zinc finger protein CONSTANS-LIKE 10. 7 ceRNA co-expression regulatory networks related to floral initiation inducing by photoperiods was constructed, including 7 mRNAs, 7 miRNAs, 5 lncRNAs, and 1 circRNA. The results demonstrated that B3 domain-containing transcription repressor VAL1-like, FLOWERING LOCUS T protein, and zinc finger protein CONSTANS-LIKE 10 may participate in flowering transition in response to long day conditions, which will contribute to further elucidate the regulatory mechanisms underlying flowering transition in sugar beet.</p>

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Whole-Transcriptome Sequencing Identifies Key mRNAs, miRNAs, lncRNAs, and circRNAs of Sugar Beet in Response to Long Days

  • 期刊论文

  • 发表日期：

    2025年9月18日

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  • Naiguo Liang,
  • Ting Wang,
  • Li Zhao,
  • Hedong Lu,
  • Dayou Cheng

摘要

The photoperiodic signal for floral induction is perceived by the leaves. The florigen was synthesized in leaves and then transmitted to the shoot apex to initiate the vegetative-to-reproductive phase transition in plant kingdom. The objective of this study was not only to explore the RNAs (including mRNA, lncRNA, miRNA, circRNA) correlating with flowering development but also to construct a competitive endogenous RNA (ceRNA) network to further uncover the mechanisms underlying flowering transition in sugar beet. The whole transcriptome sequencing was employed between long day and short day leaves by which a total of 518 differential expression mRNAs, 214 differential expression lncRNAs, 369 differential expression miRNAs, and 7 differential expression circRNAs were identified. Transcription factors and proteins emerging as crucial roles in flowering transition were uncovered, including ABC transporter, B3 domain-containing transcription repressor VAL1-like, EXORDIUM protein, FT-interacting protein 1, FLOWERING LOCUS T protein, TCP4 transcription factor, and zinc finger protein CONSTANS-LIKE 10. 7 ceRNA co-expression regulatory networks related to floral initiation inducing by photoperiods was constructed, including 7 mRNAs, 7 miRNAs, 5 lncRNAs, and 1 circRNA. The results demonstrated that B3 domain-containing transcription repressor VAL1-like, FLOWERING LOCUS T protein, and zinc finger protein CONSTANS-LIKE 10 may participate in flowering transition in response to long day conditions, which will contribute to further elucidate the regulatory mechanisms underlying flowering transition in sugar beet.