Genome wide IStraw90 SNP array probes

The University of Florida strawberry (Fragaria ×ananassa) breeding program has implemented genomic  prediction (GP) as a tool for choosing outstanding parents for crosses over the last five seasons. This has allowed the use of some parents one year earlier than with traditional methods, thus reducing the duration of the breeding cycle. However, as the number of breeding cycles increases over time, greater knowledge is needed on how multiple cycles can be used in the practical implementation of GP in strawberry breeding. Advanced selections and cultivars totaling 1,558 unique individuals were tested in field trials for yield and fruit quality traits over five consecutive years and genotyped for 9,908 SNP markers. Prediction of breeding values was carried out using Bayes B models. Independent validation was carried out using separate trials/years as training (TRN) and testing (TST) populations. Single-trial predictive abilities for five polygenic traits averaged 0.35, which was reduced to...佛罗里达大学凤梨草莓（Fragaria × ananassa）育种项目在过去五个育种季中，已将基因组预测（Genomic Prediction，GP）作为筛选优异杂交亲本的技术工具。此举可使部分亲本较传统方法提前一年投入杂交使用，进而缩短了育种周期时长。然而，随着育种循环次数随时间推移不断增加，亟需进一步明确如何在草莓育种的基因组预测实际应用中整合多轮育种循环。共计1558个独特个体的优良选系与栽培品种，历经连续五年的田间试验，对其产量及果实品质性状进行了表型鉴定，并通过9908个单核苷酸多态性（SNP）标记完成基因分型。育种值预测采用Bayes B模型开展，独立验证环节以独立的试验/年份群体分别作为训练集（TRN）与测试集（TST）。五个多基因性状的单试验预测能力平均值为0.35，该数值后续被降至……