Li Yundong, Chen Juan, Cao Siyao, Jiang Ziyi, Jiang Song, Yang Qibin, Yang Lishi, Huang Jianhua, Shi Jianzhi, Ma Zhenhua, Zhou Falin
South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, China.
College of Fisheries and Life Sciences, Dalian Ocean University, Dalian 116023, China.
Biology (Basel). 2024 Dec 2;13(12):1002. doi: 10.3390/biology13121002.
is one of the largest species of penaeid shrimp. It has a wide distribution of germplasm resources in the South China Sea and the southeastern coastal regions of China, yet its germplasm characteristics remain insufficiently understood. Therefore, we conducted analyses of basic nutritional components, amino acids, fatty acids, antioxidant indices, and genetic diversity in three populations (FmRP, FmSZ, FmSY). The results showed a significant difference in ash content, with FmSZ having the highest ash content (1.77 g/100 g) ( < 0.05). A total of 17 amino acids were detected, and FmSZ exhibited higher concentrations of most amino acids, especially essential amino acids ( < 0.05). The analysis of fatty acid composition revealed significant differences between the populations, with FmSY potentially having a nutritional advantage overall ( < 0.05). In terms of antioxidant capacity and genetic diversity, there were no significant differences in total antioxidant capacity (T-AOC), catalase (CAT), or superoxide dismutase (SOD) among the populations ( > 0.05). However, genetic analysis indicated that FmSZ had the lowest inbreeding coefficient and relatively higher genetic diversity. In conclusion, among the three populations, FmSZ has relatively higher nutritional quality and genetic diversity, and is a high-quality aquatic product worth promoting. The analysis and characterization of various aspects of from the three locations provide important information and data support for germplasm resources and genetic breeding efforts.
是对虾科中最大的物种之一。其种质资源在中国南海和中国东南沿海地区分布广泛，但对其种质特性的了解仍不充分。因此，我们对三个种群（FmRP、FmSZ、FmSY）的基本营养成分、氨基酸、脂肪酸、抗氧化指标和遗传多样性进行了分析。结果表明，灰分含量存在显著差异，FmSZ的灰分含量最高（1.77克/100克）（P<0.05）。共检测到17种氨基酸，FmSZ的大多数氨基酸，尤其是必需氨基酸浓度较高（P<0.05）。脂肪酸组成分析表明种群间存在显著差异，总体而言FmSY可能具有营养优势（P<0.05）。在抗氧化能力和遗传多样性方面，种群间的总抗氧化能力（T-AOC）、过氧化氢酶（CAT）或超氧化物歧化酶（SOD）没有显著差异（P>0.05）。然而，遗传分析表明FmSZ的近亲繁殖系数最低，遗传多样性相对较高。总之，在这三个种群中，FmSZ具有相对较高的营养品质和遗传多样性，是一种值得推广的优质水产品。对来自三个地点的该物种各方面的分析和表征为种质资源和遗传育种工作提供了重要信息和数据支持。
