BRIEF RESEARCH REPORT article
Front. Virol.
Sec. Emerging and Reemerging Viruses
Volume 5 - 2025 | doi: 10.3389/fviro.2025.1619281
This article is part of the Research TopicMolecular Tests to Detect Tropical Viruses: Where We Are, and Where We Are GoingView all articles
Identification and genomic profiling of a cotton leafroll dwarf virus isolate from Brownfield, TX
Provisionally accepted
- 1Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Sciences, Texas Tech University, Lubbock, TX, USA, Lubbock, United States
- 2Brownfield Seed & Delinting Co, Brownfield, TX, USA, Brownfield, United States
- 3Center for Molecular Biology, Alabama A&M University, Normal, AL 35762, USA., Normal, United States
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Background: Cotton leafroll dwarf virus (CLRDV), a member of the Polerovirus genus, is an emerging pathogen that threatens global cotton (Gossypium hirsutum) production. Since its first detection in Alabama in 2017, CLRDV has spread rapidly to several states of the United States of America, including Texas.In 2024, symptomatic cotton plants were collected from Brownfield, Texas. Total RNA was extracted, and RT-PCR was performed to amplify the viral genome and sequenced.The complete sequence (5,838 bp) was obtained and compared with existing CLRDV genomes from the U.S.The Brownfield isolate displayed typical CLRDV genome features but also showed genetic differences compared to isolates from neighbouring regions. Phylogenetic analysis indicated regional diversification, possibly due to environmental pressures or host cultivar variability.This study highlights the presence and evolution of CLRDV in Texas and neighbouring states. Ongoing surveillance and development of resistant cotton cultivars are essential to mitigate yield losses.
Keywords: Cotton leafroll dwarf virus (CLRDV), Cotton (Gossypium hirsutum), RNA virus in cotton, genetic diversity, Virus detection
Received: 28 Apr 2025; Accepted: 07 Jul 2025.
Copyright: © 2025 Verma, Watson, Sripathi and Janga. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Madhusudhana Janga, Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Sciences, Texas Tech University, Lubbock, TX, USA, Lubbock, United States
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