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通过幼胚离体拯救培养，成功地获得鹅观草ＲｏｅｇｎｅｒｉａｋａｍｏｊｉＯｈｗｉ（２ｎ＝６ｘ＝４２，ＳｔＳｔＨＨＹＹ）和簇毛麦Ｄａｓｙｐｙｒｕｍｖｉｌｏｓｕｍ（Ｌ．）Ｃａｎｄａｒｇｙ（２ｎ＝２ｘ＝１４，ＶＶ）属间杂种，对这两个种及其杂种Ｆ１的形态学、繁育学和减数分裂配对行为进行了研究。结果表明：（１）鹅观草和簇毛麦形态差异极大，杂种Ｆ１的形态特征介于父母本之间；（２）杂交结实率低，为１１．６３％；经幼胚组织培养，获２株杂种苗；杂种Ｆ１高度不育，表明亲本间存在极强的生殖隔离，是独立的生物学种；（３）杂种Ｆ１体细胞染色体数目为稳定的２８条，减数分裂中期Ⅰ染色体配对很低，其构型为：２６．７２Ⅰ＋０．６２Ⅱ＋０．０２Ⅲ。表明鹅观草的Ｓｔ、Ｈ、Ｙ染色体组与簇毛麦的Ｖ染色体组部分同源性很低，它们的亲缘关系较远。
Through the in vitro rescue culture of immature embryos, we successfully obtained interspecific hybrids between two genus RoegneriakamojiOhwi (2n = 6x = 42, StStHHYY) and Dasypyrum vilosum (L.) Candargy (2n = 2x = 14, VV) Morphological, breeding and meiosis pairing behavior of species and their F1 hybrids were studied. The results showed that: (1) There was a great difference in the morphological characteristics between G. gossypii and H. villosa, and the morphological characteristics of hybrid F1 were between parents; (2) The seed setting rate was low (11.63%); Two hybrid seedlings were obtained. Hybrid F1 was highly sterile, indicating that there was a strong reproductive isolation between parents and was an independent biological species. (3) The number of somatic chromosomes in hybrid F1 was stable at 28 and metaphase Ⅰ Chromosome pairing is very low, its configuration is: 26.72 Ⅰ + 0.62 Ⅱ +0.02 Ⅲ. The results showed that the homology between the St, H and Y genomes of G. gonorrhoeae and the V genomes of H. villosa was very low, and their genetic relationship was far.