Mapping the black spot resistance locus Rdr3 in the shrub rose 'George Vancouver' allows for the development of improved diagnostic markers for DNA-informed breeding.

Rdr3 is a novel resistance gene of black spot in roses that maps to a chromosome 6 homolog. A new DNA test was developed and can be used to pyramid black spot resistance in roses. Diplocarpon rosae, the cause of rose black spot, is one of the most devastating foliar pathogens of cultivated roses (Rosa spp.

Mapping a Novel Black Spot Resistance Locus in the Climbing Rose Brite Eyes™ ('RADbrite').

Rose black spot, caused by , is one of the most devastating foliar diseases of cultivated roses ( spp.). The globally distributed pathogen has the potential to cause large economic losses in the outdoor cultivation of roses.

Complete nucleotide sequence of rose yellow leaf virus, a new member of the family Tombusviridae.

The genome of the rose yellow leaf virus (RYLV) has been determined to be 3918 nucleotides long and to contain seven open reading frames (ORFs). ORF1 encodes a 27-kDa peptide (p27). ORF2 shares a common start codon with ORF1 and continues through the amber stop codon of p27 to encode an 87-kDa (p87) protein that has amino acid similarity to the RNA-dependent RNA polymerase (RdRp) of members of the family Tombusviridae.

Complete nucleotide sequence of Rosa rugosa leaf distortion virus, a new member of the family Tombusviridae.

This report describes the complete nucleotide sequence and genome organization of Rosa rugosa leaf distortion virus (RrLDV), the causal agent of a previously undescribed virus disease of Rosa rugosa. The RrLDV genome is a positive-sense ssRNA, 3971 nucleotides in length, containing five open reading frames (ORFs). ORF1 encodes a 27-kDa peptide (p27).

Complete nucleotide sequence of rose yellow vein virus, a member of the family Caulimoviridae having a novel genome organization.

This report describes the complete nucleotide sequence and genome organization of rose yellow vein virus (RYVV), a proposed new member of the family Caulimoviridae. The RYVV genome is 9314 bp in size and contains eight open reading frames (ORFs). ORFs 1, 2, and 3 have 22-38 % amino acid sequence similarity to known members of the family Caulimoviridae.