目前,核型研究已成为遗传、进化、分类以及杂交育种乃至染色体工程等研究中不可缺少的一个基础工作,这方面的研究正在引起广泛的重视。鉴于松属所有种的核型,如染色体数目、染色体长度及着丝点位置等方面都十分近似,研究它们的核型就更显得必要。松属细胞学方面的研究,自K.Sax的工作以来,国内外已有不少。其中,L.Saylor、P.Macpherson等对松属中一些种的核型进行了研究和比较。日诘 At present, karyotype research has become an indispensable basic work in the research of genetics, evolution, classification, hybrid breeding and even chromosome engineering. The research in this field is attracting a great deal of attention. In view of all species of Pinus karyotype, such as the number of chromosomes, chromosome length and centromere location are very similar, the study of their karyotype is even more necessary. Pinus cytopathology research, since K.Sax’s work, there have been many domestic and foreign. Among them, L. Saylor, P. Macpherson et al. Studied and compared the karyotypes of some species in Pinus. Sundial