Abstract
Comparative Time Series RNA-seq Analysis of Pigeonpea Root Tissues in Response to Fusarium udum Infection.
Highlights
Pigeonpea [Cajanus cajan (L.) Millsp.] is an important food legume and is mostly cultivated in tropical and subtropical regions of South Asia, Kenya, Malawi, Bangladesh, and other parts of the world
Fusarium udum is the causal agent of Fusarium wilt of pigeonpea, resulting in severe losses in yield and quality of the produce
The disease is soil-borne and has been reported throughout the world. This crop plays a pivotal role in global food security, balanced diets, and subsistence agriculture because of its diverse uses in food, fodder, fuel, soil conservation, integrated farming systems, and symbiotic nitrogen fixation
Summary
Pigeonpea [Cajanus cajan (L.) Millsp.] is an important food legume and is mostly cultivated in tropical and subtropical regions of South Asia, Kenya, Malawi, Bangladesh, and other parts of the world. Gene-mediated resistance activates salicylic acid (SA) dependent signaling pathway which further leads to activation of the effector genes throughout the plant to develop systemic acquired resistance (SAR) against pathogen infection. These mechanisms are still poorly understood at the molecular level, despite the fact that they may provide newer insights into the hostpathogen relationship and serve as a guide for potential breeding programs aimed at developing stable and resistant varieties. Two contrasting genotypes of Pigeonpea, Bahar (wilt susceptible) and KPL-44 (wilt resistant), were exposed to the pathogen F. udum at different time intervals after infection (0, 72, and 96 h) to identify potential regulatory genes involved in complex spatial-temporal genome regulation for fungal disease resistance
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