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Genome-Wide Analysis of the RAV Transcription Factor Genes in Rice Reveals Their Response Patterns to Hormones and Virus Infection

State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
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Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Maria Amelia Sánchez Pina
Viruses 2021, 13(5), 752; https://doi.org/10.3390/v13050752
Received: 26 March 2021 / Revised: 19 April 2021 / Accepted: 23 April 2021 / Published: 25 April 2021
(This article belongs to the Special Issue Host Factors in Plant Viral Infections)
The RAV family is part of the B3 superfamily and is one of the most abundant transcription factor families in plants. Members have highly conserved B3 or AP2 DNA binding domains. Although the RAV family genes of several species have been systematically identified from genome-wide studies, there has been no comprehensive study to identify rice RAV family genes. Here, we identified 15 genes of the RAV family in the rice genome and analyzed their phylogenetic relationships, gene structure, conserved domains, and chromosomal distribution. Based on domain similarity and phylogenetic topology, rice RAV transcription factors were phylogenetically clustered into four groups. qRT-PCR analyses showed that expression of these RAV genes was significantly up-regulated or down-regulated by plant hormone treatments, including BL, NAA, IAA, MeJA, and SA. Most of the rice RAV genes were dramatically down-regulated in response to rice stripe virus (RSV) and mostly up-regulated in response to Southern rice black-streaked dwarf virus (SRBSDV). These results suggest that the rice RAV genes are involved in diverse signaling pathways and in varied responses to virus infection. View Full-Text
Keywords: genome-wide analysis; RAV transcription factor; hormone treatment; virus infection; rice genome-wide analysis; RAV transcription factor; hormone treatment; virus infection; rice
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MDPI and ACS Style

Chen, C.; Li, Y.; Zhang, H.; Ma, Q.; Wei, Z.; Chen, J.; Sun, Z. Genome-Wide Analysis of the RAV Transcription Factor Genes in Rice Reveals Their Response Patterns to Hormones and Virus Infection. Viruses 2021, 13, 752. https://doi.org/10.3390/v13050752

AMA Style

Chen C, Li Y, Zhang H, Ma Q, Wei Z, Chen J, Sun Z. Genome-Wide Analysis of the RAV Transcription Factor Genes in Rice Reveals Their Response Patterns to Hormones and Virus Infection. Viruses. 2021; 13(5):752. https://doi.org/10.3390/v13050752

Chicago/Turabian Style

Chen, Changhai, Yanjun Li, Hehong Zhang, Qiang Ma, Zhongyan Wei, Jianping Chen, and Zongtao Sun. 2021. "Genome-Wide Analysis of the RAV Transcription Factor Genes in Rice Reveals Their Response Patterns to Hormones and Virus Infection" Viruses 13, no. 5: 752. https://doi.org/10.3390/v13050752

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