Genetic basis for the evolution of pelvic-fin brooding, a new mode of reproduction, in a Sulawesian fish

Javier Montenegro, Shingo Fujimoto, Satoshi Ansai, Atsushi Nagano, Masahiro Sato, Yusuke Maeda, Rieko Fujitani, Kawilarang Masengi, Ryosuke Kimura, Jun Kitano & Kazunori Yamahira
Modes of reproduction in animals are diverse, with different modes having evolved independently in multiple lineages across a variety of taxa. However, an understanding of the genomic change driving the transition between different modes of reproduction is limited. Several ricefishes (Adrianichthyidae) on the island of Sulawesi have a unique mode of reproduction called “pelvic-fin brooding,” wherein females carry externally fertilized eggs until hatching using their pelvic fins. Phylogenomic analysis demonstrated pelvic-fin brooders to have evolved...
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