Project title: Study of virus complex involved in raspberry crumbly fruit and bushy dwarf syndrome and evaluation of elimination possibilities

Project No.: lzp-2024/1-0123

Period: 1st January 2025 – 31 December 2027

Project costs: 300 000,00 EUR

Principial Investigator: Institute of Horticulture

Collaboration partner: Latvian Biomedical Research and Study Centre

Principal Investigator BMC: Dr. biol. Ina Baļķe

Project summary:

Raspberry viral diseases can significantly reduce both yield and berry quality. Among these viruses, Raspberry bush dwarf virus (Idaeovirus rubi; RBDV), along with others affecting Rubus species, contribute to raspberry crumbly fruit disease (RCFD) and bushy dwarf syndrome. RBDV is primarily transmitted through infected pollen and can also infect grapes and cherries. Managing its spread relies heavily on using virus-free planting material and developing resistant cultivars for new orchards. Current breeding strategies often rely on visual assessments of crumbly fruit development in field conditions, which can be subjective. In Latvia, the specific viruses contributing to RCFD remain unstudied, and their spread and associated symptoms are not well understood. This study seeks to uncover insights into the virus complex responsible for raspberry crumbly fruits and assess the efficacy of virus elimination methods. The research aims to elucidate the roles of RBDV and other viruses in crumbly fruit development while also developing diagnostic methods. Additionally, this study will explore the potential of the bio-compound allicin for virus elimination, a novel approach in this context. Virus icDNA vectors will also be developed, enabling future evaluations of cultivar resistance. The knowledge gained from this study will not only contribute to advancements in bioeconomy but also enhance human resources in virology and plant pathology through student involvement.

Information published 02.01.2025.