Ovate Family Proteins (OFPs) belong to a plant-specific transcription factor family. They have been found to have significant roles in growth and development in Arabidopsis and tomato; however, little is known regarding their role in banana. Thus, a genome-wide study of OFP genes in banana was conducted for the first time in the present study. The results demonstrated that 49 OFP family members are unequally distributed across 11 chromosomes. Phylogenetic analysis grouped these genes into two subfamilies and eight subgroups, which was confirmed by the conserved motif and gene structure analysis. Furthermore, MaOFPs genes duplicates were found to have originated from whole-genome duplication (WGD). The expression patterns of the genes in the various tissues and at different fruit development and ripening stages in the BaXi Jiao (BX) and Feng Jiao (FJ), banana cultivars were elucidated using transcriptome analysis. Using co-expression network analysis, MaOFP1 was found to interact not only with MaMADS36 but also with hormone response proteins. These findings improve our understanding of the functions of MaOFPs genes in the control of plant hormone signal transduction pathways during banana growth and ripening, which should inform the genetic improvement of important agricultural characters.

中文翻译：

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香蕉卵形家族蛋白的基因组和转录分析揭示了它们与果实发育和成熟的关系。

卵形家族蛋白（OFP）属于植物特异性转录因子家族。已经发现它们在拟南芥和番茄的生长和发育中具有重要作用。然而，关于它们在香蕉中的作用鲜为人知。因此，本研究中首次进行了香蕉中OFP基因的全基因组研究。结果表明49个OFP家族成员在11条染色体上分布不均。系统发育分析将这些基因分为两个亚家族和八个亚组，这通过保守的基序和基因结构分析得以证实。此外，MaOFP发现基因重复来自全基因组重复（WGD）。利用转录组分析方法，阐明了香蕉，香蕉和香蕉等不同品种在不同组织中以及在不同果实发育和成熟阶段的基因表达模式。使用共表达网络分析，发现MaOFP1不仅与MaMADS36相互作用，而且还与激素反应蛋白相互作用。这些发现提高了我们对MaOFPs基因在香蕉生长和成熟过程中控制植物激素信号转导途径中功能的理解，这应该为重要农业特性的遗传改良提供参考。