Luteovirus pavhordei (BYDV-P0) in durum wheat: molecular diagnosis, disease intensity and impact on yield components Makarnalık buğdayda Luteovirus pavhordei (BYDV-P0): moleküler tanısı, hastalık şiddeti ve verim bileşenleri üzerindeki etkisi

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Uslu Y. E., Yorganci S., Yiğit A., YARAŞIR N., Yildiz N.

Journal of Agriculture Faculty of Ege University, vol.62, no.3, pp.355-363, 2025 (Scopus, TRDizin) identifier

  • Publication Type: Article / Article
  • Volume: 62 Issue: 3
  • Publication Date: 2025
  • Doi Number: 10.20289/zfdergi.1524869
  • Journal Name: Journal of Agriculture Faculty of Ege University
  • Journal Indexes: Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.355-363
  • Keywords: Bdv2 gene, BYDV-P0, SPAD, Triticum turgidum L. var. durum, viral disease, yield
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

Objective: Luteovirus pavhordei is increasingly causing significant crop losses worldwide, affecting several crops, including durum wheat (Triticum turgidum L. var. durum), which is grown extensively. Plants possess innate defense mechanisms such as resistance genes against viral diseases. Among these, the Bdv2 gene, which occurs naturally in wild wheat varieties, provides resistance specifically to BYDV-P0. In this study, it was observed infected durum wheat varieties exhibited lower chlorophyll (SPAD), number of grains per ear (grains/ear) and ear yield (g/ear). Material and Methods: The visual assessment revealed a high symptomatic infection among Luteovirus pavhordei infected durum wheat, underscoring the severity of the disease. Using Bdv2-specific primers (BYAgi), it was screened for the presence of the Bdv2 gene in five different durum wheat varieties; however, none harbored this resistance gene. Results: The findings indicate that the absence of the Bdv2 gene in the studied durum wheat varieties renders them susceptible to BYDV-P0. The virus-induced reductions in chlorophyll and ear yield formation further highlight the detrimental impact of BYDV-P0 on durum wheat. Conclusion: These results underscore the urgency of developing strategies to mitigate the effects of this viral disease in wheat cultivation.