Parallel evolution of pelvic-fin brooding as a complex adaptive trait in the family Adrianichthyidae

该项目的研究目标令人满意；成功地完成了苏拉威西青竹的表型特征和与盆鳍孵化相关的基因组区域的鉴定。令人惊讶的是，这一项目的结果表明，很少有基因座可能控制青蛙的腹鳍孵化，这表明这种复杂的适应可以快速进化，而且几乎没有中间阶段。两个物种的形态和繁殖周期之间存在明显的差异。与杜丁杜丁亚种相比，华东亚种表现出更长的骨盆鳍，更深的凹陷，以及更长的“携卵”和“性腺成熟”时间；正如预期的那样，F2杂交个体在所有被评估的变量中都显示出中间值。

The research objective of this project was satisfactorily achieved; both the phenotypic characterization and the identification of the genomic regions associated with pelvic-fin brooding in Sulawesi medaka were successfully achieved. Surprisingly, the results of this projects indicated that few loci might control pelvic fin brooding in Sulawesi medaka suggesting that this complex adaptation could evolve rapidly, and with few or no intermediary stages.Clear differences were found between the morphology and reproductive cycle of both species. O. eversi presented longer pelvic fins, a deeper concavity, and longer periods for “carrying-eggs” and “gonads-maturation” than O. dopingdopingensis; and as expected F2 hybrid individuals showed intermediary values in all of the evaluated variables.