Li Yundong, Cao Siyao, Jiang Shigui, Huang Jianhua, Yang Qibin, Jiang Song, Yang Lishi, 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 Sep 14;13(9):722. doi: 10.3390/biology13090722.
This study aimed to evaluate the quality and genetic diversity of farmed across three distinct populations from Maoming City (MM), Zhanjiang City (ZJ), and Yangjiang City (YJ) in Guangdong Province. Muscle tissues from were analyzed for phenotypic traits, conventional nutrients, amino acids, and fatty acids, while genetic diversity was assessed using whole genome sequencing techniques. The analysis revealed that the crude protein content in shrimp across the three populations ranged from 20.87 to 21.95 g/100 g, crude fat content ranged from 0.90 to 1.50 g/100 g, essential amino acid content ranged from 5.55 to 5.86 g/100 g, total amino acid content ranged from 14.73 to 15.27 g/100 g, total fatty acid content ranged from 682.73 to 793.97 mg/100 g, total antioxidant capacity (T-AOC) ranged from 2.68 to 2.72 μmol/g, superoxide dismutase (SOD) activity ranged from 1021.97 to 1057.21 U/g, and catalase (CAT) activity ranged from 78.65 to 81.33 μmoL/min. No significant differences were observed in ash and crude fat levels among conventional nutrients, nor in the biochemical indexes T-AOC, CAT, and SOD. Genetic analysis showed that the single nucleotide polymorphism density (SNP/Kb) ranged from 15.323 to 17.461, nucleotide diversity (π) ranged from 2.98 × 10 to 15.84 × 10, polymorphism information content (PIC) ranged from 0.300 to 0.317, heterozygosity (Ho) ranged from 0.033 to 0.048, and inbreeding coefficients (FIS) ranged from 0.834 to 0.887. The genetic differentiation index (FST) values among the three populations ranged from 0.056 to 0.106. This study provides an evaluation of the germplasm resources and genetic diversity of farmed , offering insights for the efficient management and sustainable utilization of this species' germplasm resources.
本研究旨在评估广东省茂名市（MM）、湛江市（ZJ）和阳江市（YJ）三个不同种群养殖[具体物种未给出]的品质和遗传多样性。对[具体物种未给出]的肌肉组织进行了表型性状、常规营养成分、氨基酸和脂肪酸分析，同时使用全基因组测序技术评估遗传多样性。分析结果显示，三个种群的虾类粗蛋白含量在20.87至21.95克/100克之间，粗脂肪含量在0.90至1.50克/100克之间，必需氨基酸含量在5.55至5.86克/100克之间，总氨基酸含量在14.73至15.27克/100克之间，总脂肪酸含量在682.73至793.97毫克/100克之间，总抗氧化能力（T-AOC）在2.68至2.72微摩尔/克之间，超氧化物歧化酶（SOD）活性在1021.97至1057.21单位/克之间，过氧化氢酶（CAT）活性在78.65至81.33微摩尔/分钟之间。在常规营养成分中，灰分和粗脂肪水平以及生化指标T-AOC、CAT和SOD均未观察到显著差异。遗传分析表明，单核苷酸多态性密度（SNP/Kb）在15.323至17.461之间，核苷酸多样性（π）在2.98×10至15.84×10之间，多态性信息含量（PIC）在0.300至0.317之间，杂合度（Ho）在0.033至0.048之间，近交系数（FIS）在0.834至0.887之间。三个种群之间的遗传分化指数（FST）值在0.056至0.106之间。本研究对养殖[具体物种未给出]的种质资源和遗传多样性进行了评估，为该物种种质资源的有效管理和可持续利用提供了见解。
