本研究针对甘草药材市场种子来源混乱、物种误标严重的问题，开发了一种低成本、快速的PCR-RFLP分子鉴定技术。通过ITS区域酶切分析，研究人员发现市售190粒"甘草"种子中仅4粒为纯正Glycyrrhiza uralensis，绝大多数为G. glabra、G. inflata及其杂交种。该技术为甘草种质 ...

Although most diseases are caused by point mutations, in many cases, genomic duplications or deletions of genes have also been shown to be responsible for the same disorder. Changes in gene copy ...