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TIR-NBS-LRR genes play a role in plant defense against biotic stress in Solanum lycopersicum

Author

Listed:
  • Namo Dubey

    (CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
    Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India)

  • Anjali Chaudhary

    (CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
    Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India)

  • Kunal Singh

    (CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
    Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India)

Abstract

Among the many biotic factors with adverse effects on Solanum lycopersicum (tomato), diseases caused by fungi, viruses and nematodes are notable. Since the genome of S. lycopersicum became available, efforts have continued to identify the genes and proteins associated with the plant defence activity. One such gene family belongs to TIR-NBS-LRR (TNL), a subfamily of larger NBS-LRR genes. In total, 27 full-length TNLs were identified via genome wide analysis. Four pairs of segmental duplication events were observed involving different pairs of chromosomes, except the pairing of Solyc02g082050-Solyc02g032650, which were both present on chromosome 2. More than twenty nine percent (29.63%) of the genes were localised on chromosome 1 alone. Hormone-mediated biotic stress-responsive cis-regulatory elements were detected for methyl-jasmonate, salicylic acid (TCA motif) and ethylene (ERE motif). Differential gene expression was observed for many genes under different plant tissues and biotic stresses. The upregulation of many genes including SlBS4 was observed against Alternaria solani attacks in the disease tolerant varieties. Altogether, the results suggested that TNLs play a significant role in plant defence under biotic stress.

Suggested Citation

  • Namo Dubey & Anjali Chaudhary & Kunal Singh, . "TIR-NBS-LRR genes play a role in plant defense against biotic stress in Solanum lycopersicum," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 0.
    • Handle: RePEc:caa:jnlpps:v:preprint:id:127-2023-pps
    DOI: 10.17221/127/2023-PPS
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