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| Content Provider | Springer Nature Link |
|---|---|
| Author | Sun, Wei Chen, Hao Wang, Juan Sun, Hong Wei Yang, Shu Ke Sang, Ya Lin Lu, Xing Bo Xu, Xiao Hui |
| Copyright Year | 2014 |
| Abstract | Mitogen-activated protein kinases (MAPKs) play important roles in stress responses and development in plants. Maize (Zea mays), an important cereal crop, is a model plant species for molecular studies. In the last decade, several MAPKs have been identified in maize; however, their functions have not been studied extensively. Genome-wide identification and expression analysis of maize MAPK genes could provide valuable information for understanding their functions. In this study, 20 non-redundant maize MAPK genes (ZmMPKs) were identified via a genome-wide survey. Phylogenetic analysis of MAPKs from maize, rice (Oryza sativa), Arabidopsis (Arabidopsis thaliana), poplar (Populus trichocarpa), and tomato (Solanum lycopersicum) classified them into four major classes. ZmMPKs in the same class had similar domains, motifs, and genomic structures. Gene duplication investigations suggested that segmental duplications made a large contribution to the expansion of ZmMPKs. A number of cis-acting elements related to plant development and response to stress and hormones were identified in the promoter regions of ZmMPKs. Furthermore, transcript profile analysis in eight tissues and organs at various developmental stages demonstrated that most ZmMPKs were preferentially expressed in reproductive tissues and organs. The transcript abundance of most ZmMPKs changed significantly under salt, drought, cold, or abscisic acid (ABA) treatments, implying that they might participate in abiotic stress and ABA signaling. These expression analyses indicated that ZmMPKs might serve as linkers between abiotic stress signaling and plant reproduction. Our data will deepen our understanding of the complexity of the maize MAPK gene family and provide new clues to investigate their functions. |
| Starting Page | 107 |
| Ending Page | 120 |
| Page Count | 14 |
| File Format | |
| ISSN | 1438793X |
| Journal | Functional & Integrative Genomics |
| Volume Number | 15 |
| Issue Number | 1 |
| e-ISSN | 14387948 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2014-11-12 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Maize MAPK Gene family Gene expression Abiotic stress Plant reproduction Cell Biology Plant Genetics & Genomics Microbial Genetics and Genomics Biochemistry Bioinformatics Animal Genetics and Genomics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Medicine |
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