我国甘薯种质资源研究现状及展望

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Abstract： Sweetpotato[Ipomoea batatas （L.）Lam.]，as a globally important food crop，holds significant valuein ensuring food security，enhancing industrial productivity，and addressing environmental chalenges through the innovation and utilization of its germplasm resources.However，currnt research and utilization of sweetpotato germplasm resources stillface multiple challenges.Firstly，the collection and conservation of germplasm have not yet fully captured its genetic diversity，with risks of losing landraces and wild relatives. Secondly，the evaluation system remains incomplete，as traditional phenotypic characterization methods are ineffcientandinadequate for large-scale breeding demands.Additionally，despite rapid advancements in molecular biology and genomics，their application in sweetpotato germplasm innovation is still in its infancy， requiring urgent efforts to identify and utilize key trait-related genes.This review systematically summarizes recent research progress in swetpotato germplasm resources，focusing on three key aspects： （1） The diversity， collction，and conservation status of sweetpotato germplasm， including an analysis of the coverage and preservation strategies of existing germplasm repositories；（2） Identification and evaluation systems and technologies，emphasizing integrated phenotypic-genotypic approaches for eficient identification；（3）

Innovation and applicationof novel germplasm，highlightingadvances in distant hybridization，molecular marker-assisted selection，and gene editing for breeding.By synthesizing current research advancements and existing limitations，this review aims to provide critical insights into the precise characterization and optimized utilization of sweetpotato germplasm resources.

Key words： sweetpotato；germplasm resources； genetic diversity；evaluation system；innovation & application

甘薯［Ipomoeabatatas（L.）Lam.]作为全球重要的粮食作物之一，因其高产、适应性强和营养丰富而备受关注[1。（剩余29473字）