Unraveling the genetic diversity, seed oil fatty acid constituents and antioxidant activity of different okra (Abelmoschus esculentus (L.) Moench) populations.

IF 3.3 2区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Journal of the Science of Food and Agriculture Pub Date : 2025-05-13 DOI:10.1002/jsfa.14334

Seyed Mehdi Talebi, Asra Salman, Masoumeh Najibzadeh, Mansour Ghorbanpour

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引用次数: 0

Abstract

Background: Abelmoschus esculentus (L.) Moench is cultivated globally for use as a salad or culinary herb. It has a narrow genetic diversity and is sensitive to heat and drought stress. Therefore, it is very important to detect different chemotypes and genotypes to be applied in its breeding programs.

Results: The genetic diversity is equally distributed within and among the populations. Principal coordinates analysis, genetic diversity and polymorphism parameters revealed a high level of within-population diversity for some populations. PhiPT values, genetic differentiation index and total heterozygosity amount explored a high level of genetic differentiation between some populations, with a low average rate of gene flow. Nei's genetic distance and STRUCTURE analysis assigned the populations to two distinct and some intermediate genotype groups. Seed oils were composed of the same unsaturated and saturated fatty acids in a ratio of nearly 2:1. Linoleic and oleic fatty acids were the first and second main unsaturated fatty acids, followed by palmitic acid as a major saturated fatty acid in all populations. Clustering analyses explored the populations classified into two chemotype groups. However, it was not similar to those obtained by the molecular genetic data. 2,2-Diphenyl-1-picrylhydrazyl (DPPH; IC₅₀ μg mL^-1) analysis revealed a moderate to weak antioxidant activity for a few populations, which significantly correlated with palmitic acid amount.

Conclusion: Environmental factors have a stronger effect on seed oil fatty acids profiles than the genetic structure. The detected genotypes and chemotypes could be used for the development of genetic and chemical diversity, respectively, in this crop. © 2025 Society of Chemical Industry.

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不同秋葵（Abelmoschus esculentus， L.）的遗传多样性、籽油脂肪酸成分及抗氧化活性研究Moench)的人口。

背景：Abelmoschus esculentus （L.）芒奇在全球范围内都有种植，用作沙拉或烹饪草本植物。它具有狭窄的遗传多样性，对热和干旱胁迫敏感。因此，检测不同的化学型和基因型对其育种具有重要意义。结果：遗传多样性在群体内和群体间分布均匀。主坐标分析、遗传多样性和多态性参数显示，部分居群具有较高的居群内多样性。PhiPT值、遗传分化指数和总杂合度显示部分群体间的遗传分化水平较高，平均基因流率较低。Nei的遗传距离和结构分析将群体划分为两个不同的和一些中间的基因型群体。种子油由相同的不饱和脂肪酸和饱和脂肪酸组成，比例接近2:1。亚油酸和油酸脂肪酸是所有人群中最主要的不饱和脂肪酸，其次是棕榈酸。聚类分析将种群划分为两个化学型组。然而，这与分子遗传学数据得到的结果并不相似。2, 2-Diphenyl-1-picrylhydrazyl (DPPH;IC50 μg mL-1)分析显示，少数种群的抗氧化活性中至弱，与棕榈酸含量显著相关。结论：环境因素对种子油脂肪酸谱的影响大于遗传结构。检测到的基因型和化学型可分别用于该作物遗传多样性和化学多样性的开发。©2025化学工业协会。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the Science of Food and Agriculture 工程技术-农业综合

CiteScore

8.10

自引率

4.90%

发文量

634

审稿时长

3.1 months

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