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Vishnu Sukumari, Nath and Sayuj , Koyyappurath and Teena, Elizabeth Alex and Alka, Nasser and George , Thomas and Lesly , Augustine (2019) Transcriptome-based mining and expression profiling of Pythium responsive transcription factors in Zingiber sp. Functional & integrative genomics, 19 (2). pp. 249-264. ISSN 1438-7948

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Transcription factors (TFs) fine-tune the host defense transcriptome in response to pathogen invasions. No information is available on Zingiber zerumbet (Zz) TFs involved in defense response against Pythium myriotylum. Here, we provide a global identification, characterization, and temporal expression profiling of Zz TFs following an incompatible interaction with P. myriotylum using a transcriptome sequencing approach. We identified a total of 903 TFs belonging to 96 families based on their conserved domains. Evolutionary analysis clustered the Zz TFs according to their phylogenetic affinity, providing glimpses of their functional diversities. High throughput expression array analysis highlighted a complex interplay between activating and repressing transcription factors in fine-tuning Zz defense response against P. myriotylum. The high differential modulation of TFs involved in cell wall fortification, lignin biosynthesis, and SA/JA hormone crosstalk allows us to envisage that this mechanism plays a central role in restricting P. myriotylum proliferation in Zz. This study lays a solid foundation and provides valuable resources for the investigation of the evolutionary history and biological functions of Zz TF genes involved in defense response.

Item Type: Article
Uncontrolled Keywords: Biotic stress Defense response Ginger Plant-pathogen interaction Transcriptional reprogramming
Subjects: Plant Disease Biology & Biotechnology
Depositing User: Rgcb Library
Date Deposited: 12 Apr 2019 10:25
Last Modified: 12 Apr 2019 10:25
URI: http://rgcb.sciencecentral.in/id/eprint/729

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