Emerging Viral Threat to Cucurbits: First Record of Cucurbit aphid-borne yellows virus infecting Ridge Gourd in Pakistan
DOI:
https://doi.org/10.55627/pbulletin.004.01.1240Keywords:
Polerovirus , CABYV, Viral diseases in cucurbits, Molecular characterizationAbstract
Cucurbit aphid-borne yellows virus (CABYV) poses a significant threat to cucurbit crops worldwide. This study provides insight into RNA-dependent RNA polymerase and coat protein regions of CABYV isolates infecting ridge gourd (Luffa acutangula) in Pakistan. Field surveys in the Lahore district revealed that ridge gourd plants have severe interveinal yellowing and vein thickening symptoms (usually associated with polerovirus infection) and a 10–40% disease incidence. PCR amplification by polerovirus group-specific primers and sequencing confirmed CABYV infection in 9 of 20 samples. In phylogenetic reconstruction, the Pakistani isolates clustered with isolates from Taiwan and Indonesia, and the BLAST analysis showed >90% sequence similarity with these isolates highlighting CABYV's global genetic diversity. These findings underscore the need for comprehensive surveys and genomic studies to develop sustainable management strategies for this destructive pathogen.
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Copyright (c) 2025 Muhammad Usama Rehman, Naseer Ali Shah, Adnan Ahmad, Yasar Saleem, Sania Mazhar, Naaz Abbas, Quratulain Syed, Syed Hussain Abidi
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