Tangtang Ding

Submitted: 28 October 2025 You are already at the latest version The tomato hind grouper (Cephalopholis sonnerati) is an emerging aquaculture species, with significant commercial value and promising farming potential. To advance the theoretical framework for artificial breeding, this study systematically investigated embryogenesis, early larval morphology, growth patterns, and heritable traits of the species.

To investigate the early developmental characteristics and mitochondrial inheritance patterns of the hybrid offspring of a paternal Plectropomus leopardus and maternal Epinephelus fasciatus, the study systematically mapped the embryonic developmental trajectory and mitochondrial genome of the new germplasm. Results revealed that the fertilized hybrid eggs completed embryonic development within 28h55min, with the newly hatched larvae measuring 2.05 ± 0.37 mm in total length.

Submitted: 01 September 2025 Posted: 01 September 2025 You are already at the latest version Backcrossing serves as an effective tool for interspecific gene introgression, facilitating germplasm improvement. To develop superior grouper aquaculture varieties, in this study, a backcrossed breed was constructed by crossing a male hybrid grouper, KGGG (Epinephelus moara ♀ × E. lanceolatus ♂), with a female parent kelp grouper (KG; E. moara).