PDF(Pubmed)
Abstract：
The striated frogfish (Antennarius striatus), a member of the sub-order Antennarioidei within the order Lophiiformes, possesses remarkable adaptations. These include the ability to modulate body coloration for camouflage, utilize bioluminescent esca for predation, and employ elbow-like pectoral fins for terrestrial locomotion, making it a valuable model for studying bioluminescence, adaptive camouflage, fin-to-limb transition, and walking-like behaviors. To better study and contribute to the conservation of the striated frogfish, we obtained the micro-CT image of the pectoral fin bones and generated a high-quality, chromosome-level genome assembly using multiple sequencing technologies. The assembly spans 548.56 Mb with a contig N50 of 21.05 Mb, and 99.35% of the genome is anchored on 24 chromosomes, making it the most complete genome available within Lophiiformes. The genome annotation revealed 28.43% repetitive sequences and 23,945 protein-coding genes. This chromosome-level genome provides valuable genetic resources for frogfish conservation and offers insights into the genetic mechanisms underlying its unique phenotypic evolution. Furthermore, it establishes a foundation for future research on limb development and adaptive camouflage in this species.
摘要：
条纹蛙鱼（Antennariusstriatus），Lophiiformes命令中的Antennarioidei子命令的成员，具有显著的适应性。这些包括为伪装而调节身体颜色的能力，利用生物发光的esca进行捕食，并使用肘状胸鳍进行陆地运动，使其成为研究生物发光的有价值的模型，自适应伪装,鳍到肢的过渡，和走路一样的行为。为了更好地研究和促进横纹蛙鱼的保护，我们获得了胸鳍骨的显微CT图像,使用多种测序技术的染色体水平基因组组装。程序集跨越548.56Mb，重叠群N50为21.05Mb，99.35%的基因组锚定在24条染色体上，使其成为Lophiiformes中最完整的基因组。基因组注释揭示了28.43％的重复序列和23,945个蛋白质编码基因。这种染色体水平的基因组为蛙鱼的保护提供了宝贵的遗传资源，并提供了对其独特表型进化背后的遗传机制的见解。此外，它为该物种的肢体发育和适应性伪装的未来研究奠定了基础。
