马铃薯栽培种(Solanum tuberosum)起源于南美的小基因源,因此其遗传变异相对狭窄。但是,人们经常做栽培种与野生种间的杂交,以增加遗传多样性,尤其是在抗病性改良方面。虽然马铃薯野生种的叶片和根系可能具有很多优良的形态和生理特性,但有关这方面的资料报道极少。 Solanum tuberosum originates from small gene sources in South America and therefore has a relatively narrow genetic variation. However, crossbreeding of cultivated and wild species is often done to increase genetic diversity, especially in disease resistance. Although the leaves and roots of wild potato species may have many excellent morphological and physiological characteristics, there is very little information on this.