Abstract
Rubus species, including raspberry and blackberry, are affected by over 40 known viruses that can impact fruit yield, plant vigor, and germplasm movement. These species differ markedly in their response to viral infection, yet the factors that contribute to susceptibility are unknown. We hypothesize this is due to differences in virus accumulation dynamics. We utilized an infectious clone of blackberry chlorotic ringspot virus to assess replication efficiency in ‘Munger’ black raspberry ( Rubus occidentalis, L.), a virus indicator for Rubus viruses, and ‘Natchez’ blackberry ( Rubus L. subgenus Rubus Watson), a cultivar that typically is asymptomatic to single virus infections. This study demonstrated that virus accumulation in ‘Munger’ is over 4.4 × 10 5 -fold higher than in ‘Natchez,’ based on a model-derived estimate averaged across sampling time points, providing evidence that the host genotype plays a key role in supporting virus replication. These findings deepen our understanding of virus-host interactions and further validate the use of ‘Munger’ as a virus indicator for Rubus .
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Claims 3
Claim · model-written summary
Virus accumulation of blackberry chlorotic ringspot virus in Munger black raspberry was over 4.4 × 10 5 -fold higher than in Natchez blackberry, based on a model-derived estimate averaged across sampling time points.
- Material
- Mungere1
- Interactor
- blackberry chlorotic ringspot virusBlackberry chlorotic ringspot virust0pathogen
- Outcome
- virus accumulatione1
- Direction
- highere1
- Value
- 4.4 × 10 5 -folde1
- Comparator
- Natcheze1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“blackberry chlorotic ringspot virus in two Rubus species”
e1“virus accumulation in ‘Munger’ is over 4.4 × 10 5 -fold higher than in ‘Natchez”
Claim · model-written summary
The authors conclude that host genotype plays a key role in supporting virus replication.
- Interactor
- blackberry chlorotic ringspot virusBlackberry chlorotic ringspot virust0pathogen
- Outcome
- virus replicatione1
- Qualifier
- host genotypee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“blackberry chlorotic ringspot virus in two Rubus species”
e1“providing evidence that the host genotype plays a key role in supporting virus replication”
Claim · model-written summary
The findings further validate the use of Munger as a virus indicator for Rubus.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“blackberry chlorotic ringspot virus in two Rubus species”
e1“further validate the use of ‘Munger’ as a virus indicator for Rubus”