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Genome-Wide Analysis of Mitogen-Activated Protein Kinase Gene Family in Maize

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Abstract

Mitogen-activated protein kinase (MAPK) cascades are universal signal transduction modules in plants. As the last component of the MAPK cascade (MAPKKK–MAPKK–MAPK), MAPK plays important roles in linking upstream kinases and downstream substrates. The MAPK proteins belong to a complex gene family in plants, with 20 MAPK genes in the Arabidopsis genome, 17 in the rice genome, and 21 in the poplar genome. Although the maize genome sequencing has been completed, no comprehensive study has been reported thus far for the MAPK gene family in maize. In this study, we identified 19 MAPK genes in maize. These ZmMPK genes belong to four groups (A–D) found in other plants. The phylogeny, chromosomal location, gene structure, and the functional relevancy of ZmMPK genes were analyzed. Moreover, we discuss the evolutionary divergence of MAPK genes in maize. Furthermore, we analyzed the expression profiles of ZmMPKs using the public microarray data and performed expression analyses in maize seedlings and adult plants. The data obtained from our study contribute to a better understanding of the complexity of MAPKs in plants and provide a useful reference for further functional analysis of MAPK genes in maize.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Nos.30871457, 31071337, 31271633), the State Key Basic Research and Development Plan of China (No.2009CB118500) and the Scientific Research Foundation of Southwest Forestry University (No. 111169). The authors declare that they have no conflict of interest.

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  1. Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, 300 Bailong Si, Kunming, 650224, Yunnan, People’s Republic of China

    Yukun Liu

  2. College of Life Sciences, Shandong Agricultural University, Shandong, People’s Republic of China

    Yukun Liu

  3. College of Forestry, Southwest Forestry University, 300 Bailong Si, Kunming, 650224, Yunnan, People’s Republic of China

    Yukun Liu

  4. State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, 61 Dai Zong Street, Tai’an, 271018, Shandong, People’s Republic of China

    Dan Zhang, Li Wang & Dequan Li

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  4. Dequan Li
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Liu, Y., Zhang, D., Wang, L. et al. Genome-Wide Analysis of Mitogen-Activated Protein Kinase Gene Family in Maize. Plant Mol Biol Rep 31, 1446–1460 (2013). https://doi.org/10.1007/s11105-013-0623-y

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