Using gene-mapping techniques, the researchers identified a small stretch of DNA on chromosome2, where the disease-causing gene was thought to reside.
研究人员运用基因制图技术鉴定了2号染色体上的一小段DNA，而通常认为致病基因就存在于该染色体。
2
Reporting in Nature Genetics, researchers said genetic variants on chromosome2 and on chromosome 16 May increase the risk of estrogen-receptor-positive breast cancer.
So far, the large-grain dominant gene has not reported. Thus this research is the first to map a large-grain dominant gene on the chromosome2 in rice, which was temporarily designated as gl-2.