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

较好地实现了本课题的研究目标；成功地完成了苏拉威西梅达卡鱼的表型特征和与盆鳍产卵相关的基因组区域的鉴定。令人惊讶的是，该项目的结果表明，苏拉威西岛梅达卡岛很少有基因座可能控制骨盆鳍的孵化，这表明这种复杂的适应可能进化得很快，很少或没有中间阶段。在形态和繁殖周期上发现了明显的差异。与dopingdopingensis相比，oversi的腹鳍更长，凹陷更深，“产卵”和“性腺成熟”周期更长；正如预期的那样，F2杂交个体在所有评估变量中都表现出中间值。

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.