Expert Says Now is Time to Breed for Diseaseresistance.
专家说现在应该开始繁殖防疾病的种类了。
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Researchers analysed DNA samples from populations across Europe, Asia and Africa and compared rates of genetic diseaseresistance with urban history.
研究人员分析了整个欧洲、亚洲、和非洲人口的DNA样本,把基因抗病性的几率和城市的历史长度作以比较。
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Researchers investigating ancient varieties of rice have found genes that confer diseaseresistance and make crops more able to withstand floods and drought.