Another possible explanation for rococo genetic systems is atavism , in which some biological mechanisms revert back to an ancestral state , although presumably with modification , in a new , derived genetic background 有关旧式遗传学系统的另一个可能的解释是隔代遗传，在此过程中一些生物学机制恢复到一种原始生物才有的状态，尽管该状态可能会在一种新的衍生遗传学背景下发生改变。
This paper reviews the research progress in the area of molecular biology of magnetotactic bacteria , and it focuses on genomes and genetic system of magnetotactic bacteria , genes and protein associating with magnetosomes 本文对趋磁细菌及其胞内产物磁小体作了介绍，论述了该领域分子生物学方面的研究进展，包括与磁小体相关的基因和蛋白的研究、趋磁细菌遗传体系及基因组方面的研究等，展望了该领域今后的发展前景。
