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参与巴西棕早期发育的保守应激反应基因。

Conserved stress-responsive genes involved in the early development of Euterpe Edulis.

作者信息

de Medeiros Cardozo Layra, de Almeida Francine Alves Nogueira, Fioresi Vinicius Sartori, Canal Guilherme Bravim, Mengarda Liana Hilda Golin, Ferreira Adésio, da Silva Ferreira Marcia Flores

机构信息

Centro de Ciências Agrárias e Engenharias, Universidade Federal do Espírito Santo, Alto Universitário, S/N, Guararema, Alegre, 29550-000, ES, Brasil.

出版信息

Sci Rep. 2025 Jul 2;15(1):22862. doi: 10.1038/s41598-025-01436-x.

Abstract

The palm tree Euterpe edulis (juçara) plays a crucial ecological and socioeconomic role in the Atlantic Forest. Its wide distribution suggests the presence of adaptive mechanisms for tolerance to abiotic factors, particularly during early developmental stages, such as water availability and shading. This study aimed to identify conserved and differentially expressed genes (DEGs) involved in the early development of E. edulis, analyzing different tissues and two divergent plant matrices. Using eight RNA-Seq libraries, the strategy was to obtain the first transcriptome for the species through reference mapping against the Elaeis guineensis genome, with focus on conserved genes, followed by differential expression and functional annotation analyses. Among the 32,000 conserved genes identified, 1,133 were differentially expressed, with 11 showing differential expression in both tissues, 678 exclusively in leaves, and 444 in roots. Genes responsive to critical stress factors during early development were identified, revealing matrix-specific environmental adaptations, as well as genes associated with metabolism, light stimuli, and structural development. Leaf tissues exhibited the highest number of exclusive DEGs, indicating greater gene modulation in this tissue. The identification of conserved and highly expressed genes constitutes the first genomic insights for E. edulis, providing a foundation for studies aimed at its management, conservation, and genetic improvement for this non-model and endangered organism.

摘要

棕榈树Euterpe edulis(juçara)在大西洋森林中发挥着至关重要的生态和社会经济作用。其广泛分布表明存在对非生物因素耐受性的适应机制,特别是在早期发育阶段,如水的可利用性和遮荫。本研究旨在鉴定参与E. edulis早期发育的保守和差异表达基因(DEG),分析不同组织和两种不同的植物基质。使用八个RNA-Seq文库,策略是通过与油棕基因组进行参考比对来获得该物种的首个转录组,重点关注保守基因,随后进行差异表达和功能注释分析。在鉴定出的32000个保守基因中,有1133个差异表达,其中11个在两种组织中均有差异表达,678个仅在叶片中差异表达,444个在根中差异表达。鉴定出了早期发育过程中对关键胁迫因子有响应的基因,揭示了基质特异性的环境适应性,以及与代谢、光刺激和结构发育相关的基因。叶片组织中独特的DEG数量最多,表明该组织中基因调控作用更强。保守和高表达基因的鉴定构成了对E. edulis的首次基因组洞察,并为针对这种非模式且濒危生物的管理、保护和遗传改良研究奠定了基础。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5959/12214915/5ca53e28025c/41598_2025_1436_Fig1_HTML.jpg

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