Ali Usman, Tian Lei, Tang Ruihong, Wang Shunxi, Luo Weiwei, Liu Shanshan, Zhang Jinghua, Wu Liuji
National Key Laboratory of Wheat and Maize Crop Science, College of Agronomy Henan Agricultural University Zhengzhou China.
Imeta. 2024 Nov 11;3(6):e247. doi: 10.1002/imt2.247. eCollection 2024 Dec.
In this study, we present a comprehensive peptidomic atlas of 13 maize tissues, covering both vegetative and reproductive phases. Using a three-frame translation of canonical coding sequences, we identified 6100 nonredundant endogenous peptides, significantly expanding the known plant peptide repertoire. By integrating peptidomic coexpression profiles with previously reported proteomic profiles, we found that the peptide abundance did not consistently correlate with the abundance of their source proteins, suggesting the presence of complex regulatory mechanisms. This integrated peptidomic and proteomic map can serve as a valuable resource for exploring the functional roles of endogenous peptides in maize development and facilitates the investigation of the functional relationship among genes, peptides, and proteins across various biological contexts.
在本研究中，我们展示了涵盖营养生长和生殖阶段的13种玉米组织的全面肽组图谱。通过对标准编码序列进行三框架翻译，我们鉴定出6100个非冗余内源性肽，显著扩展了已知的植物肽库。通过将肽组共表达谱与先前报道的蛋白质组谱相结合，我们发现肽丰度与其来源蛋白的丰度并不始终相关，这表明存在复杂的调控机制。这种整合的肽组和蛋白质组图谱可作为探索内源性肽在玉米发育中的功能作用的宝贵资源，并有助于研究不同生物学背景下基因、肽和蛋白质之间的功能关系。
