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多omics分析揭示了桃子果香味改善的化学路线图和遗传基础

Xiangmei Cao¹, Yike Su¹, Ting Zhao²

¹Laboratory of Fruit Quality Biology/Zhejiang Key Laboratory of Horticultural Crop Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, China.

|August 15, 2024

概括

桃子育种的目的是为了更好的味道和健康. 这项研究确定了关键的风味化合物,发现红肉桃子含有较少的林纳醇和Z-3-hexenyl酸盐,为改善水果质量提供了洞察力.

科学领域:

植物遗传学植物遗传学
果种繁殖的水果繁殖
食品化学食品化学食品化学

背景情况:

桃子育种专注于改善水果的健康益处和味道.
了解风味挥发性化合物的遗传基础对于培育优质桃子至关重要.
消费者偏好与水果中的特定挥发性化学物质密切相关.

研究的目的:

为了确定影响桃子消费者偏好的关键挥发性化合物.
为了研究控制水果肉色和挥发性化合物生产的遗传因素.
通过基因改进确定提高桃子风味质量的优先事项.

主要方法:

在184个桃子加入中的挥发性化合物的量化.
功能性基因调节网络 (GRNs) 的识别和分析.
基因表达分析,包括转录因子和双联基因 (PpAATs).

主要成果:

红肉桃子加入显示了关键风味挥发物的水平降低,如林纳醇和Z-3-hexenyl乙酸盐.
发现一个涉及NAC转录因子PPBL的特定基因调节网络 (GRN05) 能够控制肉色和挥发性物质含量.
过度表达PpBL导致PpNAC1的表达减少,影响挥发性合成.
特定的PpAAT单元类型与减少的基因表达和含量相关.

结论:

影响桃肉颜色的遗传因素也会影响到可取的味道挥发性生产.
NAC转录因子PpBL是控制桃子外观和风味的关键调节者.
基因资源的开发是为了帮助培育具有改善水果质量的桃子.

关键词:

CP: 植物植物在GWAS中,GWAS就是GWAS.它们是安托西安氨酸.香味香气味道味道味道味道我们的eQTL是eQTL.基因监管网络基因监管网络转录因子的转录因子

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Fruit Development, Structure, and Function

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Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.