Exploring drought-responsive crucial genes in Sorghum

Summary: Drought severely affects global food production. Sorghum is a typical drought-resistant model crop. Based on RNA-seq data for Sorghum with multiple time points and the gray correlation coefficient, this paper firstly selects candidate genes via mean variance test and constructs weighted gen...

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Main Authors: Yilin Bi, Pei Wang
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589004222016194
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author Yilin Bi
Pei Wang
author_facet Yilin Bi
Pei Wang
author_sort Yilin Bi
collection DOAJ
description Summary: Drought severely affects global food production. Sorghum is a typical drought-resistant model crop. Based on RNA-seq data for Sorghum with multiple time points and the gray correlation coefficient, this paper firstly selects candidate genes via mean variance test and constructs weighted gene differential co-expression networks (WGDCNs); then, based on guilt-by-rewiring principle, the WGDCNs and the hidden Markov random field model, drought-responsive crucial genes are identified for five developmental stages respectively. Enrichment and sequence alignment analysis reveal that the screened genes may play critical functional roles in drought responsiveness. A multilayer differential co-expression network for the screened genes reveals that Sorghum is very sensitive to pre-flowering drought. Furthermore, a crucial gene regulatory module is established, which regulates drought responsiveness via plant hormone signal transduction, MAPK cascades, and transcriptional regulations. The proposed method can well excavate crucial genes through RNA-seq data, which have implications in breeding of new varieties with improved drought tolerance.
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spelling doaj.art-1df9ce435805415f8adbd3c46c9bbbc82022-12-22T03:54:09ZengElsevieriScience2589-00422022-11-012511105347Exploring drought-responsive crucial genes in SorghumYilin Bi0Pei Wang1School of Mathematics and Statistics, Henan University, Kaifeng 475004, ChinaSchool of Mathematics and Statistics, Henan University, Kaifeng 475004, China; Center for Applied Mathematics of Henan Province, Henan University, Kaifeng 475004, China; Corresponding authorSummary: Drought severely affects global food production. Sorghum is a typical drought-resistant model crop. Based on RNA-seq data for Sorghum with multiple time points and the gray correlation coefficient, this paper firstly selects candidate genes via mean variance test and constructs weighted gene differential co-expression networks (WGDCNs); then, based on guilt-by-rewiring principle, the WGDCNs and the hidden Markov random field model, drought-responsive crucial genes are identified for five developmental stages respectively. Enrichment and sequence alignment analysis reveal that the screened genes may play critical functional roles in drought responsiveness. A multilayer differential co-expression network for the screened genes reveals that Sorghum is very sensitive to pre-flowering drought. Furthermore, a crucial gene regulatory module is established, which regulates drought responsiveness via plant hormone signal transduction, MAPK cascades, and transcriptional regulations. The proposed method can well excavate crucial genes through RNA-seq data, which have implications in breeding of new varieties with improved drought tolerance.http://www.sciencedirect.com/science/article/pii/S2589004222016194Natural resourcesGeneticsPlant biologyAgricultural science
spellingShingle Yilin Bi
Pei Wang
Exploring drought-responsive crucial genes in Sorghum
iScience
Natural resources
Genetics
Plant biology
Agricultural science
title Exploring drought-responsive crucial genes in Sorghum
title_full Exploring drought-responsive crucial genes in Sorghum
title_fullStr Exploring drought-responsive crucial genes in Sorghum
title_full_unstemmed Exploring drought-responsive crucial genes in Sorghum
title_short Exploring drought-responsive crucial genes in Sorghum
title_sort exploring drought responsive crucial genes in sorghum
topic Natural resources
Genetics
Plant biology
Agricultural science
url http://www.sciencedirect.com/science/article/pii/S2589004222016194
work_keys_str_mv AT yilinbi exploringdroughtresponsivecrucialgenesinsorghum
AT peiwang exploringdroughtresponsivecrucialgenesinsorghum