Identification of Crowding Stress Tolerance Co-Expression Networks Involved in Sweet Corn Yield

PloS One
Eunsoo ChoeMartin M Williams

Abstract

Tolerance to crowding stress has played a crucial role in improving agronomic productivity in field corn; however, commercial sweet corn hybrids vary greatly in crowding stress tolerance. The objectives were to 1) explore transcriptional changes among sweet corn hybrids with differential yield under crowding stress, 2) identify relationships between phenotypic responses and gene expression patterns, and 3) identify groups of genes associated with yield and crowding stress tolerance. Under conditions of crowding stress, three high-yielding and three low-yielding sweet corn hybrids were grouped for transcriptional and phenotypic analyses. Transcriptional analyses identified from 372 to 859 common differentially expressed genes (DEGs) for each hybrid. Large gene expression pattern variation among hybrids and only 26 common DEGs across all hybrid comparisons were identified, suggesting each hybrid has a unique response to crowding stress. Over-represented biological functions of DEGs also differed among hybrids. Strong correlation was observed between: 1) modules with up-regulation in high-yielding hybrids and yield traits, and 2) modules with up-regulation in low-yielding hybrids and plant/ear traits. Modules linked with yield tra...Continue Reading

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Citations

Jun 5, 2019·International Journal of Molecular Sciences·Wenqi LiYingmin Lyu
Sep 27, 2019·PloS One·Daljeet S Dhaliwal, Martin M Williams
Dec 13, 2017·The Plant Journal : for Cell and Molecular Biology·Harihar Jaishree SubrahmaniamFabrice Roux
Mar 20, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Feng LinHan Zhao
Dec 4, 2020·Plant, Cell & Environment·Roza D BilasTom Bennett
Jun 18, 2021·PloS One·Eunsoo ChoeMartin M Williams
Oct 12, 2021·Frontiers in Plant Science·Daljeet S DhaliwalMartin M Williams

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Datasets Mentioned

BETA
GSE73435

Methods Mentioned

BETA
two hybrid
PCR
three hybrids
light
phosphotransferase
histone acetylation
acetylation
PCA

Software Mentioned

AgriGO
GenePix
WGCNA
SDS2
Limma
Mapman
Cytoscape
R
REVIGO
SAS

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