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七十年代以来,我国不少学者曾对各种大麦的亲缘关系及进化程度进行了研究,主要涉及野生六棱和栽培六棱,以及野生二棱和六棱大麦之间亲缘关系的研究。至于四梭栽培大麦的核型分析及二、四、六棱大麦核型的比较研究,目前尚未见有报道。本文报道了利用有丝分裂中期染色体的形态特征进行常规分析的方法,对二、四、六棱大麦的核型进行了比较研究,以进一步揭示三者之间的亲缘关系及进化程度。
Since the 1970s, many Chinese scholars have studied the genetic relationship and the degree of evolution of various barley, mainly related to the research on the genetic relationship between the wild hexagonal and cultivated hexagonal as well as the wild two-sided and hexagonal barley. As for the four-barley cultivated barley karyotype analysis and two, four, six-rowed barley karyotype comparative study has not been reported. This paper reports the methods of routine analysis of the morphological characteristics of metaphase chromosomes in mitosis to compare the karyotypes of two, four and six-rowed barley to further reveal the genetic relationship and the degree of evolution among the three.