Li Yundong, Chen Juan, Jiang Song, Yang Qibin, Yang Lishi, Huang Jianhua, Shi Jianzhi, Zhang Yan, Lu Zhibin, 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.
Key Laboratory of Efficient Utilization and Processing of Marine Fishery Resources of Hainan Province, Sanya Tropical Fisheries Research Institute, Sanya 572018, China.
Biology (Basel). 2024 Oct 19;13(10):838. doi: 10.3390/biology13100838.
Due to its high tolerance to salinity and temperature, as well as its strong adaptability, holds an important position in the Chinese aquaculture industry. However, studies on the evaluation of its germplasm resources remain insufficient. This research conducted an in-depth comparative evaluation of from three representative farming regions in China: Sanya, Zhuhai, and Raoping. The nutritional analysis of muscle tissue showed no statistically significant differences in crude ash, moisture, and crude protein content among the populations ( > 0.05). However, significant differences were observed in crude fat and total sugar content ( < 0.05). The MeSY and MeRP populations had higher crude fat content than the MeZH population ( < 0.05), while the MeZH population exhibited the highest total sugar content. In terms of amino acid composition, the MeSY population had relatively higher total essential amino acid content and proportion, as well as higher total amino acid content, both of which were statistically significant ( < 0.05). A fatty acid composition analysis further highlighted the advantages of the MeRP population in several key fatty acids ( < 0.05). Physiological and biochemical analyses showed no significant differences among the three populations in total antioxidant capacity, superoxide dismutase activity, or catalase activity ( > 0.05). A genetic diversity analysis indicated that has relatively low diversity, with the MeSY population showing higher SNP density and nucleotide diversity. A genetic differentiation analysis revealed significant genetic differentiation between the MeSY and MeZH populations, while differentiation between the MeZH and MeRP populations was relatively smaller. This comprehensive assessment of nutritional components, amino acids, fatty acids, antioxidant capacity, and genetic diversity highlights the advantages of germplasm resources from different regions. These findings provide valuable insights for future research on the genetic characteristics and breeding potential of .
由于其对盐度和温度的高耐受性以及强大的适应性，在中国水产养殖业中占据重要地位。然而，对其种质资源的评价研究仍显不足。本研究对来自中国三亚、珠海和饶平三个代表性养殖地区的[物种名称未给出]进行了深入的比较评价。肌肉组织的营养分析表明，各群体间粗灰分、水分和粗蛋白含量在统计学上无显著差异（P>0.05）。然而，粗脂肪和总糖含量存在显著差异（P<0.05）。MeSY和MeRP群体的粗脂肪含量高于MeZH群体（P<0.05），而MeZH群体的总糖含量最高。在氨基酸组成方面，MeSY群体的总必需氨基酸含量和比例相对较高，总氨基酸含量也较高，两者均具有统计学意义（P<0.05）。脂肪酸组成分析进一步凸显了MeRP群体在几种关键脂肪酸方面的优势（P<0.05）。生理生化分析表明，三个群体在总抗氧化能力、超氧化物歧化酶活性或过氧化氢酶活性方面无显著差异（P>0.05）。遗传多样性分析表明，[物种名称未给出]的多样性相对较低，MeSY群体显示出较高的SNP密度和核苷酸多样性。遗传分化分析显示，MeSY和MeZH群体之间存在显著的遗传分化，而MeZH和MeRP群体之间的分化相对较小。对营养成分、氨基酸、脂肪酸、抗氧化能力和遗传多样性的综合评估突出了不同地区种质资源的优势。这些发现为未来关于[物种名称未给出]的遗传特征和育种潜力的研究提供了有价值的见解。
