Scholarlink

<p>The regulation of flowering is crucial for optimizing palm oil yield and ensuring adaptation to environmental conditions. This study investigates two <i>FLOWERING LOCUS T</i> (<i>FT</i>) homologs in oil palm (<i>Elaeis guineensis</i>), <i>EgHd3a</i>-1 and <i>EgHd3a</i>-2, to elucidate their roles in flowering induction and developmental processes. Quantitative PCR and GUS reporter assays in <i>Arabidopsis thaliana</i> revealed that <i>EgHd3a</i>-1 is predominantly expressed in reproductive tissues and vascular structures, functioning analogously to <i>FT</i> as a floral inducer. In contrast, <i>EgHd3a</i>-2 displayed broader expressions across both vegetative and reproductive tissues, particularly during early growth stages, suggesting a role in organ development rather than direct floral induction. Overexpression of <i>EgHd3a</i>-1 and <i>EgHd3a</i>-2 in <i>A. thaliana</i> resulted in distinct flowering phenotypes, with <i>EgHd3a-</i>1 mutants exhibiting accelerated flowering under long-day conditions. Promoter analysis of <i>pEgHd3a</i>-1 and <i>pEgHd3a</i>-2 identified unique <i>cis</i>-acting regulatory elements associated with tissue specificity and environmental responsiveness, reinforcing their complementary functions. These findings provide a molecular basis for targeted genetic modification of flowering time in oil palm, offering significant potential for accelerating breeding cycles, improving yields optimization, and enhancing resilience to environmental changes.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Dissecting the roles of EgHd3a genes in flower induction and development of oil palm (Elaeis guineensis)

  • 期刊论文

  • 发表日期：

    2026年1月26日

查看全文
  • Aqwin Polosoro,
  • Wening Enggarini,
  • Kusumawaty Kusumanegara,
  • Roberdi Roberdi,
  • Toto Hadiarto,
  • M. Miftahudin,
  • S. Suharsono,
  • Ence Darmo Jaya Supena

摘要

The regulation of flowering is crucial for optimizing palm oil yield and ensuring adaptation to environmental conditions. This study investigates two FLOWERING LOCUS T (FT) homologs in oil palm (Elaeis guineensis), EgHd3a-1 and EgHd3a-2, to elucidate their roles in flowering induction and developmental processes. Quantitative PCR and GUS reporter assays in Arabidopsis thaliana revealed that EgHd3a-1 is predominantly expressed in reproductive tissues and vascular structures, functioning analogously to FT as a floral inducer. In contrast, EgHd3a-2 displayed broader expressions across both vegetative and reproductive tissues, particularly during early growth stages, suggesting a role in organ development rather than direct floral induction. Overexpression of EgHd3a-1 and EgHd3a-2 in A. thaliana resulted in distinct flowering phenotypes, with EgHd3a-1 mutants exhibiting accelerated flowering under long-day conditions. Promoter analysis of pEgHd3a-1 and pEgHd3a-2 identified unique cis-acting regulatory elements associated with tissue specificity and environmental responsiveness, reinforcing their complementary functions. These findings provide a molecular basis for targeted genetic modification of flowering time in oil palm, offering significant potential for accelerating breeding cycles, improving yields optimization, and enhancing resilience to environmental changes.