Multiomics Comparative Analysis of the Maize Large Grain Mutant Tc19 Identified Pathways Related to Kernel Development

Overview

Journal BMC Genomics

Publisher Biomed Central

Specialty Genetics

Date 2023 Sep 11

PMID 37697229

Authors

Qing Cai

Fuchao Jiao

Qianqian Wang

Enying Zhang

Xiyun Song

Yuhe Pei

Jun Li

Meiai Zhao

Xinmei Guo

Affiliations

Soon will be listed here.

Abstract

Background: The mechanism of grain development in elite maize breeding lines has not been fully elucidated. Grain length, grain width and grain weight are key components of maize grain yield. Previously, using the Chinese elite maize breeding line Chang7-2 and its large grain mutant tc19, we characterized the grain size developmental difference between Chang7-2 and tc19 and performed transcriptomic analysis.

Results: In this paper, using Chang7-2 and tc19, we performed comparative transcriptomic, proteomic and metabolomic analyses at different grain development stages. Through proteomics analyses, we found 2884, 505 and 126 differentially expressed proteins (DEPs) at 14, 21 and 28 days after pollination, respectively. Through metabolomics analysis, we identified 51, 32 and 36 differentially accumulated metabolites (DAMs) at 14, 21 and 28 days after pollination, respectively. Through multiomics comparative analysis, we showed that the phenylpropanoid pathways are influenced at transcriptomic, proteomic and metabolomic levels in all the three grain developmental stages.

Conclusion: We identified several genes in phenylpropanoid biosynthesis, which may be related to the large grain phenotype of tc19. In summary, our results provided new insights into maize grain development.

Citing Articles

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