Unveiling the Role of E2F/DP in Plant Stress Response

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Investigations into plant science have led to new insights into the E2F/DP gene family, which plays a crucial role in plant responses to environmental stresses. Researchers from the Department of Agriculture in Shanxi, People's Republic of China, have identified 29 BnE2F/DP genes in Brassica napus and classified them into 8 sub-families. The study explores the chromosomal distribution, gene structure composition, and expression patterns of these genes across various tissues, revealing their involvement in multiple regulatory processes.

Key Takeaways:

  • The E2F/DP gene family in Brassica napus consists of 29 genes, classified into 8 sub-families, which are unevenly distributed across 15 chromosomes.
  • Intragenomic collinearity analysis detected 35 pairs of collinear BnE2F/DP gene pairs, indicating conserved regions within the genome.
  • Interspecific analysis revealed 9 pairs of orthologous gene pairs between Brassica napus and Arabidopsis thaliana, highlighting shared evolutionary relationships.
  • Cis-acting element analysis revealed four types of elements in BnE2F/DP family members, potentially involved in hormonal regulation, abiotic stress responses, light reactions, and growth and development.
  • Transcriptome and quantitative PCR data analyses indicate that members of the E2FC subfamily are likely to actively regulate seed and embryo development and respond to various abiotic stresses.
  • The conserved motifs and gene structures within each BnE2F/DP subfamily are largely consistent, indicating a crucial role in the growth and development of rapeseed seeds and embryos.

Statistics:

  • 29 BnE2F/DP genes were identified in Brassica napus, with 8 sub-families.
  • 15 chromosomes of Brassica napus harbor various BnE2F/DP genes, with enrichment on chromosomes 3 and 13.
  • 35 pairs of collinear BnE2F/DP gene pairs were detected through intragenomic analysis.
  • 9 pairs of orthologous gene pairs exist between Brassica napus and Arabidopsis thaliana.
  • Four types of cis-acting elements are present in BnE2F/DP family members, potentially involved in multiple regulatory processes.

Sources:

  • "Identification and expression analysis of the BnE2F/DP gene family in Brassica napus." Frontiers in Plant Science, 2025,16. (Frontiers in Plant Science - http://journal.frontiersin.org/journal/plant-science)
  • Frontiers Media S.A.
  • A free version of this journal article is available at https://doi-org.sdpl.idm.oclc.org/10.3389/fpls.2025.1641897.