植物营养性状的遗传学改良是提高不良土壤营养环境中作物产量的一条新途径。
Genetic improvement of plant nutritional characters provides a new approach towards increasing the crop yields in unfavorable soil environments.
遗传学改良的生物体已被用于制造药物和其它制品，但对生物体的DNA部分改动甚少。
Genetically modified organisms are already used to manufacture drugs and other products, but they're produced by changing only small sections of DNA.
随着分子细胞遗传学技术的应用，必将使体细胞变异在作物改良中发挥巨大的作用。
Somaclonal variation will play an important role in crop improvement with utilization of molecular cytogenetic techniques.
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