Scholarlink

<p>Deep-sea aquaculture is an emerging trend due to the contamination and overexploitation of nearshore mariculture areas. However, the complex water conditions in the deep sea impose higher demands on the swimming performance of farmed animals. Spotted sea bass (<i>Lateolabrax maculatus</i>) is one of the most economically important fish species in China. To investigate the mechanisms underlying the individual variations in swimming performance among spotted sea bass, we measured their critical swimming speed (<i>U</i><sub>crit</sub>) and morphological phenotypes. Total length, body length, body weight, caudal region length, and condition factor showed significant positive correlations with absolute <i>U</i><sub>crit</sub>. In contrast, caudal fin length and pectoral fin length tended to hinder the swimming performance of individual spotted sea bass. Additionally, white muscle tissues from fish exhibiting good swimming performance (relative <i>U</i><sub>crit</sub>&gt;8.20 BL/s) and poor swimming performance (relative <i>U</i><sub>crit</sub>&lt;7.31 BL/s) were sampled for RNA-seq. A total of 694 differential expression genes (DEGs) were identified through gene expression analysis, with significant enrichment in GO terms such as mitochondrial protein complex, ribosomal subunit, structural constituent of ribosome, and oxidative phosphorylation, as well as genes in KEGG pathways including ribosome and metabolic pathways. In conclusion, our study for the first time comprehensively elucidated the impact of morphology of spotted sea bass on its individual differences in swimming ability, and analyzed the genetic basis underlying swimming ability using transcriptomic methods. This study provides a theoretical basis for the potential breeding varieties of spotted sea bass suitable for deep-sea aquaculture.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Differences of Morphology and Muscle Transcriptomes Reveal the Individual Difference of Swimming Performance in Juvenile Spotted Sea Bass (Lateolabrax maculatus)

  • 期刊论文

  • 发表日期：

    2025年5月8日

查看全文
  • Haoyang Li,
  • Hao Li,
  • Chengtian Li,
  • Xi Jin,
  • Weiwei Li,
  • Haishen Wen,
  • Yun Li,
  • Qianyan Lai,
  • Chunxiang Niu,
  • Xin Qi

摘要

Deep-sea aquaculture is an emerging trend due to the contamination and overexploitation of nearshore mariculture areas. However, the complex water conditions in the deep sea impose higher demands on the swimming performance of farmed animals. Spotted sea bass (Lateolabrax maculatus) is one of the most economically important fish species in China. To investigate the mechanisms underlying the individual variations in swimming performance among spotted sea bass, we measured their critical swimming speed (Ucrit) and morphological phenotypes. Total length, body length, body weight, caudal region length, and condition factor showed significant positive correlations with absolute Ucrit. In contrast, caudal fin length and pectoral fin length tended to hinder the swimming performance of individual spotted sea bass. Additionally, white muscle tissues from fish exhibiting good swimming performance (relative Ucrit>8.20 BL/s) and poor swimming performance (relative Ucrit<7.31 BL/s) were sampled for RNA-seq. A total of 694 differential expression genes (DEGs) were identified through gene expression analysis, with significant enrichment in GO terms such as mitochondrial protein complex, ribosomal subunit, structural constituent of ribosome, and oxidative phosphorylation, as well as genes in KEGG pathways including ribosome and metabolic pathways. In conclusion, our study for the first time comprehensively elucidated the impact of morphology of spotted sea bass on its individual differences in swimming ability, and analyzed the genetic basis underlying swimming ability using transcriptomic methods. This study provides a theoretical basis for the potential breeding varieties of spotted sea bass suitable for deep-sea aquaculture.