supported by the National Natural Science Foundation of China(41825013);the Marine Economic Development Project(GDNRC[2022]36);National Key R&D Program of China(2022YFC3102403);National Natural Science Foundation of China(42230409,42276127);Guangdong Basic and Applied Basic Research Foundation(2021A1515011380,2021A1515011393).
Vertebrates have developed various modes of reproduction,some of which are found in Teleosts.Over 300 species of the Syngnathidae(seahorses,pipefishes and seadragons)exhibit male pregnancies;the males have specialized...