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蒙古冰草隶属于冰草属的二倍体种（2n＝14），原产于内蒙古。航道冰草是从北美引进的栽培品种隶属于扁稳冰草种，亦为二倍体种（2n＝14）。为了将蒙古冰革的优良抗性基因和航道冰草的优良品质基因相结合，进行二倍体种间的远缘杂交。杂种F1全部为二倍体，其形态学特征介于双亲之间。杂种F1PMCMⅠ的染色体平均配对构型为：2．09Ⅰ、4．86Ⅱ、0．48Ⅲ、0．24Ⅳ及0．19Ⅴ。杂种F1较高的二价体配对频率表明，两条本间的染色体同源程度较高。其杂种F1部分花粉可有，为亲本间遗传物质的交流提供了可能性。
Mongolia ice grass belonging to the genus Diptera species (2n = 14), native to Inner Mongolia. Trail ice grass is introduced from North America cultivated species belonging to the flat ice grass species, also diploid species (2n = 14). In order to combine the excellent resistance gene of Mongolian ice leather with the excellent quality gene of Icegrass, distant hybridization between diploid species was carried out. Hybrid F1 all diploid, its morphological characteristics between parents. The average chromosome pairing configuration of hybrid F1PMCMⅠwas 2.09Ⅰ, 4.86Ⅱ, 0.48Ⅲ, 0.24Ⅳ and 0.19Ⅴ. The higher bivalence of F1 hybrids indicates that the two chromosomes are highly homologous. Pollen F1 part of hybrids may have genetic parents for the exchange of the possibility of providing.