Genome-Wide Identification and Expression Analysis of OsbZIP09 Target Genes in Rice Reveal Its Mechanism of Controlling Seed Germination

Seed dormancy and germination are key events in plant development and are critical for crop production, and defects in seed germination or the inappropriate release of seed dormancy cause substantial losses in crop yields. Rice is the staple food for more than half of the world’s population, and pre...

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Main Authors: Cheng-Chao Zhu, Chu-Xin Wang, Chen-Ya Lu, Jin-Dong Wang, Yu Zhou, Min Xiong, Chang-Quan Zhang, Qiao-Quan Liu, Qian-Feng Li
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/4/1661
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author Cheng-Chao Zhu
Chu-Xin Wang
Chen-Ya Lu
Jin-Dong Wang
Yu Zhou
Min Xiong
Chang-Quan Zhang
Qiao-Quan Liu
Qian-Feng Li
author_facet Cheng-Chao Zhu
Chu-Xin Wang
Chen-Ya Lu
Jin-Dong Wang
Yu Zhou
Min Xiong
Chang-Quan Zhang
Qiao-Quan Liu
Qian-Feng Li
author_sort Cheng-Chao Zhu
collection DOAJ
description Seed dormancy and germination are key events in plant development and are critical for crop production, and defects in seed germination or the inappropriate release of seed dormancy cause substantial losses in crop yields. Rice is the staple food for more than half of the world’s population, and preharvest sprouting (PHS) is one of the most severe problems in rice production, due to a low level of seed dormancy, especially under warm and damp conditions. Therefore, PHS leads to yield loss and a decrease in rice quality and vitality. We reveal that mutation of <i>OsbZIP09</i> inhibited rice PHS. Analysis of the expression of <i>OsbZIP09</i> and its encoded protein sequence and structure indicated that OsbZIP09 is a typical bZIP transcription factor that contains conserved bZIP domains, and its expression is induced by ABA. Moreover, RNA sequencing (RNA-seq) and DNA affinity purification sequencing (DAP-seq) analyses were performed and 52 key direct targets of OsbZIP09 were identified, including <i>OsLOX2</i> and <i>Late Embryogenesis Abundant</i> (<i>LEA</i>) family genes, which are involved in controlling seed germination. Most of these key targets showed consistent changes in expression in response to abscisic acid (ABA) treatment and <i>OsbZIP09</i> mutation. The data characterize a number of key target genes that are directly regulated by OsbZIP09 and contribute to revealing the molecular mechanism that underlies how OsbZIP09 controls rice seed germination.
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spelling doaj.art-a95c61a230de4f3a96f47778531eda1d2023-12-03T12:44:18ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-02-01224166110.3390/ijms22041661Genome-Wide Identification and Expression Analysis of OsbZIP09 Target Genes in Rice Reveal Its Mechanism of Controlling Seed GerminationCheng-Chao Zhu0Chu-Xin Wang1Chen-Ya Lu2Jin-Dong Wang3Yu Zhou4Min Xiong5Chang-Quan Zhang6Qiao-Quan Liu7Qian-Feng Li8Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University, Yangzhou 225009, ChinaKey Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University, Yangzhou 225009, ChinaSeed dormancy and germination are key events in plant development and are critical for crop production, and defects in seed germination or the inappropriate release of seed dormancy cause substantial losses in crop yields. Rice is the staple food for more than half of the world’s population, and preharvest sprouting (PHS) is one of the most severe problems in rice production, due to a low level of seed dormancy, especially under warm and damp conditions. Therefore, PHS leads to yield loss and a decrease in rice quality and vitality. We reveal that mutation of <i>OsbZIP09</i> inhibited rice PHS. Analysis of the expression of <i>OsbZIP09</i> and its encoded protein sequence and structure indicated that OsbZIP09 is a typical bZIP transcription factor that contains conserved bZIP domains, and its expression is induced by ABA. Moreover, RNA sequencing (RNA-seq) and DNA affinity purification sequencing (DAP-seq) analyses were performed and 52 key direct targets of OsbZIP09 were identified, including <i>OsLOX2</i> and <i>Late Embryogenesis Abundant</i> (<i>LEA</i>) family genes, which are involved in controlling seed germination. Most of these key targets showed consistent changes in expression in response to abscisic acid (ABA) treatment and <i>OsbZIP09</i> mutation. The data characterize a number of key target genes that are directly regulated by OsbZIP09 and contribute to revealing the molecular mechanism that underlies how OsbZIP09 controls rice seed germination.https://www.mdpi.com/1422-0067/22/4/1661OsbZIP09preharvest sproutingABARNA-seqDAP-seqseed germination
spellingShingle Cheng-Chao Zhu
Chu-Xin Wang
Chen-Ya Lu
Jin-Dong Wang
Yu Zhou
Min Xiong
Chang-Quan Zhang
Qiao-Quan Liu
Qian-Feng Li
Genome-Wide Identification and Expression Analysis of OsbZIP09 Target Genes in Rice Reveal Its Mechanism of Controlling Seed Germination
International Journal of Molecular Sciences
OsbZIP09
preharvest sprouting
ABA
RNA-seq
DAP-seq
seed germination
title Genome-Wide Identification and Expression Analysis of OsbZIP09 Target Genes in Rice Reveal Its Mechanism of Controlling Seed Germination
title_full Genome-Wide Identification and Expression Analysis of OsbZIP09 Target Genes in Rice Reveal Its Mechanism of Controlling Seed Germination
title_fullStr Genome-Wide Identification and Expression Analysis of OsbZIP09 Target Genes in Rice Reveal Its Mechanism of Controlling Seed Germination
title_full_unstemmed Genome-Wide Identification and Expression Analysis of OsbZIP09 Target Genes in Rice Reveal Its Mechanism of Controlling Seed Germination
title_short Genome-Wide Identification and Expression Analysis of OsbZIP09 Target Genes in Rice Reveal Its Mechanism of Controlling Seed Germination
title_sort genome wide identification and expression analysis of osbzip09 target genes in rice reveal its mechanism of controlling seed germination
topic OsbZIP09
preharvest sprouting
ABA
RNA-seq
DAP-seq
seed germination
url https://www.mdpi.com/1422-0067/22/4/1661
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