远缘杂交促使物种之间的基因交流,传递种间、属间、科问的特性与特征,形成新物种类型,创造新种质资源,从而扩大了基因库。早在十九世纪,达尔文就记述了十八至十九世纪的许多种间远缘杂交的实验材料。1876年得到了第一个人工合成的小麦和黑麦属间杂交后代——小黑麦新物种。水稻(稻亚科)和高粱(黍亚科)的杂种是超越了 Distant hybridization promotes the exchange of genes among species, and transmits the characteristics and characteristics of interspecific, interdependent and interdependent species, forming new species types and creating new germplasm resources, thereby expanding the gene pool. As early as the 19th century, Darwin described experimental materials for many interspecies distant crosses from the 18th to the 19th centuries. In 1876 the first synthetic new cross between wheat and rye was obtained - a new triticale. Hybrids between rice (Akoiaceae) and sorghum (Bemisiaceae) are beyond