Studies on karyotypes among populations indicated that all the karyotypes belonged to stebbins ' 3b type 居群間核型研究表明:各居群的核型類型都屬于stebbins的3b型。
Studies on karyotypes wihin clones indicated that all the karyotypes belonged to stebbins ' 3b type . there are different karyotype formulas , polymorphsim of satellite chromosome , variations of chromosomal structure and b - chromosome in clones . chromosomal mutation is important factor of chromosomal structure variations within clones 無(wú)性系內(nèi)核型研究表明:各無(wú)性系的核型類型都屬于st吮七us的m型、核型公式不完全川同、隨體染色體具多忐性,染色體存在結(jié)構(gòu)變異,研究認(rèn)為造成無(wú)性系內(nèi)核型變異的重要原因是染色體突變。
Their flowers and fruits were removed in this experiment to enhance them to take branch roots on the stems , and then the branch roots were used as materials . five mitosis metaphase cells , with their chromosomes well scattered , were counted . chromosome number of hup is 2x = 24 , and its karyotype formula is 2n = 2x = 24 = 8m + 12sm + 4st , being to " 3b " of stebbins 本實(shí)驗(yàn)采取去其花、果實(shí),促其莖節(jié)上長(zhǎng)側(cè)根的辦法,以其側(cè)根為實(shí)驗(yàn)材料,統(tǒng)計(jì)了5個(gè)分散較好的有絲分裂中期細(xì)胞,其染色體數(shù)目為2x = 24 ,核型公式為2n = 2x = 24 = 8m + 12sm + 4st ,核型類型為3b型。