This study reviews the progress in fish breeding, focusing on distant hybridization and gynogenesis, and introduces the theory of macro‐hybrid and micro‐hybrid. The macro‐hybrid refers to the allo‐progeny derived from distant hybridization, including the allo‐progenies. The micro‐hybrid refers to the auto‐progenies derived from distant hybridization or heterologous sperm‐induced gynogenesis, which possess a genome derived pred...

The cover image is based on the article Macro‐Hybrid and Micro‐Hybrid of Fish by Shaojun Liu et al., https://doi.org/10.1111/raq.70106 . image

As global food demand rises, land‐based production faces challenges such as limited arable land and sustainability concerns, whereas seafood offers a nutritionally diverse and environmentally sustainable alternative for future food security. Intensified farming has increased Vibrio spp. infections due to their genetic diversity and adaptability to environmental changes. The misuse or overuse of antibiotics in aquaculture exace...