Genetic dissection of stem and leaf rachis prickles in diploid rose using a pedigree-based QTL analysis.

Introduction: Prickles are often deemed undesirable traits in many crops, including roses ( sp.), and there is demand for rose cultivars with no or very few prickles. This study aims to identify new and/or validate reported quantitative trait loci (QTLs) associated with stem and leaf rachis prickle density, characterize the effects of functional haplotypes for major QTLs, and identify the sources of QTL-alleles associated with increased/decreased prickle density in roses.

QTL mapping and characterization of black spot disease resistance using two multi-parental diploid rose populations.

Black spot disease (BSD) () is the most common and damaging fungal disease in garden roses (.). Although qualitative resistance to BSD has been extensively investigated, the research on quantitative resistance lags behind.

Pedigree-based analysis in multi-parental diploid rose populations reveals QTLs for cercospora leaf spot disease resistance.

Cercospora leaf spot (CLS) () is a major fungal disease of roses ( sp.) in the southeastern U.S.

Mapping and characterization QTLs for phenological traits in seven pedigree-connected peach families.

Background: Environmental adaptation and expanding harvest seasons are primary goals of most peach [Prunus persica (L.) Batsch] breeding programs. Breeding perennial crops is a challenging task due to their long breeding cycles and large tree size.

Identification and characterization of QTLs for fruit quality traits in peach through a multi-family approach.

Background: Fruit quality traits have a significant effect on consumer acceptance and subsequently on peach (Prunus persica (L.) Batsch) consumption. Determining the genetic bases of key fruit quality traits is essential for the industry to improve fruit quality and increase consumption.