Ran Wang, Peter M. Bourke, Sikai Li, Miaomiao Lin, Leiming Sun, Hong Gu, Yukuo Li, Richard G.F. Visser, Xiujuan Qi, Chris Maliepaard, Jinbao Fang
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引用次数: 0
Abstract
Fruit quality traits play an important role in consumption of kiwiberry (). The genetic basis of fruit quality traits in this woody, perennial and dioecious fruit crop remains largely unknown. This study aimed to identify the underlying genetic basis of fruit quality traits in , using a single nucleotide polymorphism (SNP) genetic linkage map previously developed in a tetraploid F population of ‘Ruby-3’ × ‘KuiLv-M’. The F population was phenotyped over three years (2020–2022) for fruit quality traits, including skin color, flesh color, fruit weight, fruit diameter, total soluble solids, fruit longitudinal diameter and fruit shape index. A total of nine QTLs were detected for five traits, explaining 10%–32% of the trait variation. For fruit color, the support interval of a major QTL on LG9 contained an MYB transcription factor MYB110, which was previously demonstrated to control color regulation in kiwifruit, thus suggesting that the is the candidate gene for fruit color in kiwiberry. The linked marker for fruit color was validated in an F population and 25 kiwiberry cultivars. In conclusion, the knowledge obtained through the QTL mapping is applicable to improve the efficiency and cost-effectiveness in kiwiberry breeding.
期刊介绍:
Horticultural Plant Journal (HPJ) is an OPEN ACCESS international journal. HPJ publishes research related to all horticultural plants, including fruits, vegetables, ornamental plants, tea plants, and medicinal plants, etc. The journal covers all aspects of horticultural crop sciences, including germplasm resources, genetics and breeding, tillage and cultivation, physiology and biochemistry, ecology, genomics, biotechnology, plant protection, postharvest processing, etc. Article types include Original research papers, Reviews, and Short communications.