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用生物素标记的簇毛麦（Ｈａｙｎａｌｄｉａｖｉｌｌｏｓａ）染色体组ＤＮＡ（ｔｏｔａｌｇｅｎｏｍｉｃＤＮＡ）作探针，以普通小麦染色体组ＤＮＡ作遮盖（用量１：２００左右），进行有丝分裂中期和减数分裂中期Ｉ染色体的分子原位杂交（ＧＩＳＨ），经抗生物素蛋白－辣根过氧化物酶复合物（ｂｉｏ－ｓｔｒｅｐｔａｖｉｄｉｎ－ｈｏｒｓｅｒａｄｉｓｈｐｅｒｏｘｉｄａｓｅ）和联苯胺四盐酸（ＤＡＢ）检测显色后，小麦－簇毛麦双倍体、附加系、代换系和易位系中的簇毛麦染色体及染色体片段显棕色，与显浅蓝色的小麦染色体可明显区分。用ＧＩＳＨ不仅可以检测导入小麦中的簇毛麦染色质，而且可以清楚地显示出易位染色体断裂点的确切位置。将ＧＩＳＨ用于减数分裂期染色体配对分析，还可以清晰形象地显示出同源和非同源染色体之间的配对和分离情况。
Using the biotin-labeled total genomicDNA of Haynaldia villosa genomic DNA as a probe, covering with the genome DNA of common wheat (covering an amount of 1: 200), the molecular metaplasia of the metaphase I and metaphase I metaplasia After hybridization with GISH and bio-streptavidin-horseradish perroxidase and benzidine tetrahydrochloride (DAB) Lines, chromosomes and chromosomes in the lines, substitution lines and translocation lines were brown and clearly distinguished from light blue wheat chromosomes. Not only can GISH be used to detect HMCs introduced into wheat, but it also clearly shows the exact location of the breakpoint at the site of the translocation. The use of GISH for meiotic pairing analysis of meiosis can also clearly show the pairing and separation between homologous and non-homologous chromosomes.