Genetic Diversity Assessment and Core Germplasm Screening of Blackcurrant (Ribes nigrum) in China via Expressed Sequence Tag-Simple Sequence Repeat Markers中国黑加仑(Ribes nigrum)的遗传多样性评估与核心种质筛选:基于表达序列标签-简单序列重复标记INTERNATIONAL JOURNAL OF MOLECULAR SCIENCESIF4.92025-03-060OA