Post Doctoral Research Fellowship in Plant Biology

根据叶绿体的多源假说 进化，今天的植物细胞从吞噬进化而来， 无色的类似动物的细胞形成光合细菌。 随后，被吞噬的细菌和宿主细胞形成了一种 共生关系，这样两者都不能单独生存。 这个过程的一部分涉及遗传信息的丢失 从两个细胞的基因库中， 将细菌染色体与宿主细胞染色体连接起来。这 建议是阐明参与决定的机制 哪些基因将被保存在叶绿体中， 转移，并从主机中删除 细胞/共生体复合体 初步实验将确定 叶绿体中单个基因的性质和位置 染色体 随后的研究将确定基因， 从叶绿体转移到宿主体内。 总的目标是 为了验证内共生体假说， 其预测。

According to the polyphyletic hypothesis of chloroplast evolution, present day plant cells evolved from the engulfment of photosynthetic bacteria by colorless animal-like cells. Subsequently, the engulfed bacteria and host cell developed a symbiotic relationship, so that neither could survive alone. Part of this process involved the loss of hereditary information from the two cells' gene libraries and a transfer of genes from the bacterial chromosome to the host cell chromosome. This proposal is to elucidate the mechanisms involved in determining which genes are to be maintained in the chloroplast, which are to be transferred, and which are to be eliminated from the host cell/symbiont complex. Initial experiments will identify the nature and location of individual genes in the chloroplast chromosome. Subsequent studies will identify genes that have been transferred from chloroplast to host. The overall goal is to test the endosymbiont hypothesis by examining the validity of its predictions.