Re cent researches show that the analyses of gene families and chromosomal structures between vertebrates and those close to them could provide a great deal of clues and proofs about the origin of vertebrates.

• 近年来的研究表明，通过对脊椎动物和与之亲缘关系接近的物种之间进行基因家族、染色体结构分析，可以对脊椎动物进化提供很多线索和证据。