Mitochondrial Eve is only 6000 years old.

How can different genes in the same person come from different sources? Remember that eight people were on the Ark but only four were women, whom we will assume were not closely related. Right after the Flood, a total of four types of mitochondrial DNA were present among the women of the human population. There were even more types of nuclear DNA among both the males and females. Now imagine how quickly the types of mitochondrial DNA could be lost. If Japheth had one daughter and this daughter did not have any daughters, then the mitochondria of Japheth’s wife would have been lost, but Japheth’s nuclear genes would survive through his sons. In this way, mitochondrial diversity can be lost quickly during a genetic bottleneck, while nuclear diversity can be preserved.

By now you might be wondering about “mitochondrial Eve,” the name that evolutionary biologists give to the supposed mitochondrial ancestor of modern humans. I think you can see now that she was not the biblical Eve. Instead, she was probably one of the four women who survived the Flood. Maybe she was Shem’s wife, but the “mitochondrial Shem’s wife theory” doesn’t quite have the same ring to it.

同じ人物にある異なる遺伝子が異なる源からやってくるのか? ノアの箱舟には8人が乗っていて、うち女性は4人だった。この4人は近親ではないと仮定しよう。ノアの洪水直後、人間集団の女性には4つのタイプのミトコンドリアがあった。男女の核のDNAはもっと多くのタイプがあった。ヤペスに娘が一人いて、この娘に娘がいなければ、ヤペスの妻のミトコンドリアは失われるが、ヤペスノ核の遺伝子は息子を通じて生き残る。このようにしてミトコンドリアの多様性は、遺伝的ボトルネックにより急速に失われるが、核の多様性は保存される。



  • ミトコンドリアイブは最初の人類女性ではない。
  • ミトコンドリアイブに相当するのは、おそらくセムの妻である。




最終更新:2013年11月09日 18:24