Fedorov Alexei, Fedorova Larisa
Department of Medicine, Medical University of Ohio, Toledo, OH 43614, USA.
Genome Biol. 2006;7(1):203. doi: 10.1186/gb-2006-7-1-203. Epub 2006 Feb 1.
The first systematic investigation of an annelid genome has revealed that the genes of the marine worm Platynereis dumerilii are more closely related to those of vertebrates than to those of insects or nematodes. For hundreds of millions of years vertebrates have preserved exon-intron structures descended from their last common ancestor with the annelids.
对一种环节动物基因组的首次系统研究表明,海生蠕虫杜氏阔沙蚕的基因与脊椎动物的基因关系,比与昆虫或线虫的基因关系更为密切。在数亿年的时间里,脊椎动物保留了与环节动物的最后一个共同祖先遗传下来的外显子-内含子结构。