Characterization of the leaf rust responsive ARF genes in wheat (Triticum aestivumL.)

Chandra Saket; Satapathy Lopamudra; Basu SrirupaJha Shailendra KumarKumar ManishMukhopadhyay Kunal

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Characterization of the leaf rust responsive ARF genes in wheat (Triticum aestivumL.)

机译：Characterization of the leaf rust responsive ARF genes in wheat (Triticum aestivumL.)

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Key message Genome-wide identification, classification, functional characterization and expression analysis of Auxin Responsive Factor (ARF) gene family in wheat reveal their attributes and role during leaf rust infection. Auxins are important plant growth regulators that also impact plant-pathogen interaction. Auxin responsive factors (ARF) are plant specific transcription factors that control responses to auxins. Whole genome investigation ofARFgene family is limited in allohexaploid wheat (Triticum aestivumL.). Comprehensive study of this gene family was carried out by employing the currently available reference genome sequence of wheat. In total, 27ARFgenes were identified and located on the wheat genome as well as were positioned on wheat chromosome arms. Additionally, examination of the predicted genes unveiled a decent degree of relatedness within and among the phylogenetic clades. Leaf rust, caused by the obligate biotrophic fungal pathogenPuccinia triticina, is responsible for drastic loss of wheat crop worldwide reducing grain yield by 10-90%. Expression profiling ofARFgenes in retort to leaf rust infection indicated their differential regulation during this plant-pathogen interaction. Highest expression ofARFgenes were observed at 12 hpi that was maintained up to 72 hpi during incompatible interaction, whereas the high expression levels receded at 48 hpi during compatible interactions. Few of the identifiedARFgenes were likely to be post-transcriptionally regulated by microRNAs. Many light and stress responsive elements were detected in the promoter regions ofARFgenes. Microsynteny analysis showed the conservation ofARFgenes within the members of the Poaceae family. This study provides fundamental details for understanding the different types ofARFgenes in wheat and there putative roles during leaf rust-wheat interaction.

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来源
《Plant Cell Reports》 |2020年第12期|1639-1654|共16页
作者
Chandra Saket; Satapathy Lopamudra; Basu SrirupaJha Shailendra KumarKumar ManishMukhopadhyay Kunal;
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作者单位

Birla Inst Technol, Dept Bioengn, Ranchi 835215, Jharkhand, India;

IARI New Delhi, Dept Genet, New Delhi 110012, India;

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原文格式 PDF
正文语种英语
中图分类植物细胞学;
关键词
ARF; Auxin; Leaf rust; Triticum aestivum; Genome-wide study;

Characterization of the leaf rust responsive ARF genes in wheat (Triticum aestivumL.)

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