The researchers used a new technique called SNP (single nucleotide polymorphism) technology to identify homozygous regions in the genome, which led to the discovery of the new gene called LCA5.

• 研究人员在此项研究中使用一种新的技术称为单核苷酸多态性（SNP）以确定基因组中的纯合子区域，最终发现了这个称为LCA5的新基因。