Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars
Abstract Background Low temperature is a major factor influencing the growth and development of Chinese jujube (Ziziphus jujuba Mill.) in cold winter and spring. Little is known about the molecular mechanisms enabling jujube to cope with different freezing stress conditions. To elucidate the freezin...
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BMC
2020-05-01
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Series: | BMC Plant Biology |
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Online Access: | http://link.springer.com/article/10.1186/s12870-020-02450-z |
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doaj-769d4790572847fbad5ef8500f316814 |
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record_format |
Article |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Heying Zhou Ying He Yongsheng Zhu Meiyu Li Shuang Song Wenhao Bo Yingyue Li Xiaoming Pang |
spellingShingle |
Heying Zhou Ying He Yongsheng Zhu Meiyu Li Shuang Song Wenhao Bo Yingyue Li Xiaoming Pang Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars BMC Plant Biology Ziziphus jujuba ‘Dongzao’ ‘Jinsixiaozao’ Freezing stress RNA-seq DEGs |
author_facet |
Heying Zhou Ying He Yongsheng Zhu Meiyu Li Shuang Song Wenhao Bo Yingyue Li Xiaoming Pang |
author_sort |
Heying Zhou |
title |
Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars |
title_short |
Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars |
title_full |
Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars |
title_fullStr |
Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars |
title_full_unstemmed |
Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars |
title_sort |
comparative transcriptome profiling reveals cold stress responsiveness in two contrasting chinese jujube cultivars |
publisher |
BMC |
series |
BMC Plant Biology |
issn |
1471-2229 |
publishDate |
2020-05-01 |
description |
Abstract Background Low temperature is a major factor influencing the growth and development of Chinese jujube (Ziziphus jujuba Mill.) in cold winter and spring. Little is known about the molecular mechanisms enabling jujube to cope with different freezing stress conditions. To elucidate the freezing-related molecular mechanism, we conducted comparative transcriptome analysis between ‘Dongzao’ (low freezing tolerance cultivar) and ‘Jinsixiaozao’ (high freezing tolerance cultivar) using RNA-Seq. Results More than 20,000 genes were detected at chilling (4 °C) and freezing (− 10 °C, − 20 °C, − 30 °C and − 40 °C) stress between the two cultivars. The numbers of differentially expressed genes (DEGs) between the two cultivars were 1831, 2030, 1993, 1845 and 2137 under the five treatments. Functional enrichment analysis suggested that the metabolic pathway, response to stimulus and catalytic activity were significantly enriched under stronger freezing stress. Among the DEGs, nine participated in the Ca2+ signal pathway, thirty-two were identified to participate in sucrose metabolism, and others were identified to participate in the regulation of ROS, plant hormones and antifreeze proteins. In addition, important transcription factors (WRKY, AP2/ERF, NAC and bZIP) participating in freezing stress were activated under different degrees of freezing stress. Conclusions Our research first provides a more comprehensive understanding of DEGs involved in freezing stress at the transcriptome level in two Z. jujuba cultivars with different freezing tolerances. These results may help to elucidate the molecular mechanism of freezing tolerance in jujube and also provides new insights and candidate genes for genetically enhancing freezing stress tolerance. |
topic |
Ziziphus jujuba ‘Dongzao’ ‘Jinsixiaozao’ Freezing stress RNA-seq DEGs |
url |
http://link.springer.com/article/10.1186/s12870-020-02450-z |
work_keys_str_mv |
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doaj-769d4790572847fbad5ef8500f3168142020-11-25T03:17:50ZengBMCBMC Plant Biology1471-22292020-05-0120111210.1186/s12870-020-02450-zComparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivarsHeying Zhou0Ying He1Yongsheng Zhu2Meiyu Li3Shuang Song4Wenhao Bo5Yingyue Li6Xiaoming Pang7Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry UniversityBeijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry UniversityInstitute of Crop, Wuhan Academy of Agricultural SciencesBeijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry UniversityBeijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry UniversityBeijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry UniversityBeijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry UniversityBeijing Advanced Innovation Center for Tree Breeding by Molecular Design, National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry UniversityAbstract Background Low temperature is a major factor influencing the growth and development of Chinese jujube (Ziziphus jujuba Mill.) in cold winter and spring. Little is known about the molecular mechanisms enabling jujube to cope with different freezing stress conditions. To elucidate the freezing-related molecular mechanism, we conducted comparative transcriptome analysis between ‘Dongzao’ (low freezing tolerance cultivar) and ‘Jinsixiaozao’ (high freezing tolerance cultivar) using RNA-Seq. Results More than 20,000 genes were detected at chilling (4 °C) and freezing (− 10 °C, − 20 °C, − 30 °C and − 40 °C) stress between the two cultivars. The numbers of differentially expressed genes (DEGs) between the two cultivars were 1831, 2030, 1993, 1845 and 2137 under the five treatments. Functional enrichment analysis suggested that the metabolic pathway, response to stimulus and catalytic activity were significantly enriched under stronger freezing stress. Among the DEGs, nine participated in the Ca2+ signal pathway, thirty-two were identified to participate in sucrose metabolism, and others were identified to participate in the regulation of ROS, plant hormones and antifreeze proteins. In addition, important transcription factors (WRKY, AP2/ERF, NAC and bZIP) participating in freezing stress were activated under different degrees of freezing stress. Conclusions Our research first provides a more comprehensive understanding of DEGs involved in freezing stress at the transcriptome level in two Z. jujuba cultivars with different freezing tolerances. These results may help to elucidate the molecular mechanism of freezing tolerance in jujube and also provides new insights and candidate genes for genetically enhancing freezing stress tolerance.http://link.springer.com/article/10.1186/s12870-020-02450-zZiziphus jujuba‘Dongzao’‘Jinsixiaozao’Freezing stressRNA-seqDEGs |