Tuber quality is the subject of great interest among the processing industry and consumers worldwide. Being a polygenic trait, its enhancement requires a systematic understanding of their genetic complexity. Molecular genetics offered valuable solutions to the challenging endeavours of slow genetic gains in conventional potato breeding. With the advent of linkage maps, molecular markers and availability of next-generation sequencing (NGS) platforms, the plant breeding programmes worldwide have achieved faster genetic gain due to marker-assisted selection (MAS). Linkage mapping detects QTLs in biparental population; alternatively, genomic and phenotypic differences can be identified by extensive genotyping and phenotyping of a germplasm panel depicting natural biological diversity to reveal QTLs, in other words, marker-trait associations. Due to advancements in the fields of genome sequencing and bioinformatics, researchers have preferred to use the genome-wide association mapping (GWAS) method for detecting QTLs due to its higher resolution. In potato, GWAS identified causative allele(s)/loci and provides reliable platform for the development of diagnostic SNP markers by employing Infinium SolCAP SNP array. Later, KASP validation markers can be developed to be used as selection markers in order to bred improved cultivars. The current review focuses on recently used approaches for genetic analyses (linkage mapping or association mapping) regarding potato tuber quality traits, provides comprehensive knowledge about breeding, genetic gain, basic genetic and statistical GWAS concepts and subsequently highlights the genetic discoveries using GWAS and KASP markers.

中文翻译：

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使用快速转发技术（GWAS）驯化、育种、遗传增益和改良马铃薯块茎品质性状的综述：综述

块茎质量是全球加工业和消费者非常感兴趣的主题。作为一种多基因性状，其增强需要对其遗传复杂性有系统的了解。分子遗传学为传统马铃薯育种中缓慢遗传收益的挑战性努力提供了有价值的解决方案。随着连锁图谱、分子标记和下一代测序 (NGS) 平台的出现，全球植物育种计划通过标记辅助选择 (MAS) 实现了更快的遗传增益。连锁作图检测双亲群体中的QTL；或者，可以通过对描述自然生物多样性的种质面板进行广泛的基因分型和表型分析来识别基因组和表型差异，以揭示 QTL，换句话说，标记-性状关联。由于基因组测序和生物信息学领域的进步，研究人员更喜欢使用全基因组关联映射 (GWAS) 方法来检测 QTL，因为它具有更高的分辨率。在马铃薯中，GWAS 鉴定了致病等位基因/位点，并通过采用 Infinium SolCAP SNP 阵列为诊断 SNP 标记的开发提供了可靠的平台。后来，可以开发 KASP 验证标记用作选择标记，以培育改良品种。本综述侧重于最近使用的关于马铃薯块茎品质性状的遗传分析方法（连锁作图或关联作图），提供有关育种、遗传增益、基本遗传和统计 GWAS 概念的全面知识，随后重点介绍了使用 GWAS 和 KASP 标记的遗传发现.