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Hop with powdery mildew [HPM: caused by Podosphaera macularis (Wallr.) U. Braun & S. Takam.] results in significant losses in hop production by reducing yield and quality. One means of increasing yield and quality is the production of resistant hop lines. Breeding for resistance can be significantly improved and accelerated by use of marker-assisted selection. The objective of this preliminary study was to identify QTLs and markers for genetic resistance to HPM. A bi-parental mapping population between the resistant line “Newport” and susceptible line ‘21110M’. Phenotypic data was scored under controlled greenhouse conditions. Significant differences among offspring were observed and disease resistance did not follow a distinct binomial distribution, suggesting quantitative genetic control. Genotyping-by-sequencing resulted in approximately 375 K SNP markers, which were filtered down to 2263 markers mapped to 10 linkage groups. Interval Mapping identified four QTLs with one on linkage group 1 and three located on linkage group 6. Composite interval mapping identified three QTLs, all located on linkage group 6. Mixed linear models identified 15 markers associated with expression of resistance to HPM. Three of these 15 SNPs were also identified in QTL-CIM analysis. Evaluation of the scaffolds containing the significant SNP markers identified seven putative genes—several of which appear involved in disease resistance in other plant species. The SNP markers identified in this study still require validation in unrelated populations prior to implementation in breeding programs. [ABSTRACT FROM AUTHOR]

There has been little research on pain in the acute phase of spinal cord injury (SCI) rehabilitation. This study surveyed the pain experience and management strategies in such patients. The subjects consisted of inpatients who were undergoing rehabilitation following their acute injury, and were assessed regarding the presence and type of any pain upon admission to the rehabilitation ward, and reviewed weekly during their stay. They were reassessed on reporting any new pain. Pain intensity was recorded on a Visual Analogue Scale. The maximum intensity of pain during admission was compared to that at discharge. All interventions directed at pain management were documented. Patients were reviewed one year after discharge regarding current pain experience. Almost all of the patients (n=23; 96%) experienced pain at some stage during their inpatient rehabilitation. Overall pain intensity for those patients with pain during inpatient admission decreased by the time of discharge. At the one year review however, pain intensity tended towards that seen on admission. The reasons for pain tending to increase after discharge were not apparent. Neuropathic and Myofascial Pain Syndrome (MPS) were the most common types of pain experienced. A combination of pharmacological, interventional, physical and psychological approaches were used in pain management. At one year review, neuropathic pain remained common while MPS and orthopaedic pain had decreased. Pain is a common and significant problem for many SCI patients and is a challenge for the treating team to manage. [ABSTRACT FROM AUTHOR]