Genome-Wide Identification and Characterization of Small Peptides in Maize.
Genome-Wide Identification and Characterization of Small Peptides in Maize.
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玉米小肽的全基因组鉴定和表征
DOI:
10.3389/fpls.2021.695439
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发表时间:
2021
影响因子:
5.6
通讯作者:
Li L
中科院分区:
文献类型:
--
作者:
Liang Y;Zhu W;Chen S;Qian J;Li L
Small peptides (sPeptides), <100 amino acids (aa) long, are encoded by small open reading frames (sORFs) often found in the 5′ and 3′ untranslated regions (or other parts) of mRNAs, in long non-coding RNAs, or transcripts from introns and intergenic regions; various sPeptides play important roles in multiple biological processes. In this study, we conducted a comprehensive study of maize (Zea mays) sPeptides using mRNA sequencing, ribosome profiling (Ribo-seq), and mass spectrometry (MS) on six tissues (each with at least two replicates). To identify maize sORFs and sPeptides from these data, we set up a robust bioinformatics pipeline and performed a genome-wide scan. This scan uncovered 9,388 sORFs encoding peptides of 2–100 aa. These sORFs showed distinct genomic features, such as different Kozak region sequences, higher specificity of translation, and high translational efficiency, compared with the canonical protein-coding genes. Furthermore, the MS data verified 2,695 sPeptides. These sPeptides perfectly discriminated all the tissues and were highly associated with their parental genes. Interestingly, the parental genes of sPeptides were significantly enriched in multiple functional gene ontology terms related to abiotic stress and development, suggesting the potential roles of sPeptides in the regulation of their parental genes. Overall, this study lays out the guidelines for genome-wide scans of sORFs and sPeptides in plants by integrating Ribo-seq and MS data and provides a more comprehensive resource of functional sPeptides in maize and gives a new perspective on the complex biological systems of plants.
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影响因子:
--
作者:
Kalvari I;Nawrocki EP;Argasinska J;Quinones-Olvera N;Finn RD;Bateman A;Petrov AI
通讯作者:
Petrov AI
DOI:
10.1038/nrm4069
发表时间:
2015-11
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
Brar GA;Weissman JS
通讯作者:
Weissman JS
影响因子:
2.8
作者:
Guo, Pin;Yoshimura, Asami;Ishikawa, Naoko;Yamaguchi, Takahiro;Guo, Youhao;Tsukaya, Hirokazu
通讯作者:
Tsukaya, Hirokazu
影响因子:
7.4
作者:
Gao, Zhen;Li, Jing;Ma, Chao
通讯作者:
Ma, Chao
DOI:
10.1007/978-1-4939-7537-2_26
发表时间:
2018-01-01
期刊:
PEPTIDOMICS: METHODS AND STRATEGIES
影响因子:
--
作者:
Hemu, Xinya;Serra, Aida;Tam, James P.
通讯作者:
Tam, James P.