Journal
SCIENTIFIC REPORTS
Volume 6, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep33332
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Funding
- Cooperative Research Program for Agriculture Science & Technology Development from the Rural Development Administration of the Korean government [PJ010939062016]
- National Research Foundation of the Korea Ministry of Education, Science and Technology [NRF-2015R1A6A1A03031413, 2015R1A2A1A01002327]
- National Research Foundation of Korea [2015R1A2A1A01002327] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Rural Development Administration (RDA), Republic of Korea [PJ010939062016] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The DNA-binding with one zinc finger proteins (Dofs) are a plant-specific family of transcription factors. The Dofs are involved in a variety of biological processes such as phytohormone production, seed development, and environmental adaptation. Dofs have been previously identified in several plants, but not in pepper. We identified 33 putative Dof genes in pepper (CaDofs). To gain an overview of the CaDofs, we analyzed phylogenetic relationships, protein motifs, and evolutionary history. We divided the 33 CaDofs, containing 25 motifs, into four major groups distributed on eight chromosomes. We discovered an expansion of the CaDofs dated to a recent duplication event. Segmental duplication that occurred before the speciation of the Solanaceae lineages was predominant among the CaDofs. The global gene-expression profiling of the CaDofs by RNA-seq analysis showed distinct temporal and pathogen-specific variation during development and response to biotic stresses (two TMV strains, PepMoV, and Phytophthora capsici), suggesting functional diversity among the CaDofs. These results will provide the useful clues into the responses of Dofs in biotic stresses and promote a better understanding of their multiple function in pepper and other species.
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