智利一种血肉桃遗传多样性、多酚成分及果实品质性状表型分析

IF 0.7 4区 农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY
Rodrigo Corral, B. Carrasco, Cesar Ramírez, Lorena Marchant, Álvaro Peña, J. Covarrubias, L. Meisel, Igor Pacheco, Elsa R. Bascuñan-Ortiz, H. Silva
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引用次数: 0

摘要

本研究报告了智利遗产血肉桃的遗传多样性以及这些果实中存在的植物化学物质和生物活性化合物的特征。使用7934个SNP标记进行遗传多样性分析。75株智利血肉桃树的平均杂合度(Ho=0.09)很低,而14个商品桃树品种的杂合度显著较高(Ho=0.32)。此外,血肉桃品系遗传相似,而这些品系都与商品品种遗传不同。对桃果实的外果皮和中果皮进行了比较分析。在收获时评估果实品质参数(重量、大小、硬度和可溶性固形物),以及总多酚、花青素、类胡萝卜素、宏量元素(P、K、Ca、Mg)和微量元素(Fe、Zn、Mn、B、Cu)的浓度。这些分析表明,与具有白色或黄色中果皮的商品品种相比,血肉桃具有高浓度的花青素(花青素-3-葡萄糖苷(C3G)和花青素-3-芦丁苷(C3R))。对中国、法国和智利品种进行了比较,发现抗氧化成分的值相似。与商品品种相比,这些鲜肉果实中微量元素和大量元素含量无显著差异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Genetic diversity, polyphenolic composition and fruit quality trait phenotypic analyses of a Chilean heritage blood-flesh peach (Prunus persica L.)
This study reports the genetic diversity among Chilean heritage blood-flesh peaches and the characterization of phytochemicals and bioactive compounds present in these fruits. A genetic diversity analysis using 7,934 SNP markers was performed. The average observed heterozygosity (Ho=0.09) was very low in the 75 Chilean blood-flesh peach trees, whereas 14 commercial peach varieties had significantly higher levels of heterozygosity (Ho=0.32). Furthermore, the blood-flesh peach lines were genetically similar, and all of these lines were genetically different from the commercial varieties. A comparative analysis was carried out between the epicarp and mesocarp of the peach fruits. Fruit quality parameters were evaluated at harvest (weight, size, firmness and soluble solids), and concentrations of total polyphenols, anthocyanins, carotenoids, as were macro (P, K, Ca, Mg) and microelements (Fe, Zn, Mn, B, Cu). These analyses showed that blood-flesh peaches have high concentrations of anthocyanins (cyanidin-3-glucoside (C3G) and cyanidin-3-rutinoside (C3R)) when compared to commercial varieties with white or yellow mesocarps. A comparison was performed among Chinese, French and Chilean varieties, with similar values found for the antioxidant compounds. No significant differences in the microand macroelement contents were detected in these blood-flesh fruits compared to commercial varieties.
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CiteScore
2.40
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