知识与财富的链接
利用普通压片法对3个引进彩色马蹄莲(Zantedeschia hybrid)品种的染色体数与核型进行了分析。结果表明:所试验品种染色体数均为2n=32。染色体形态比较一致,多是由中部(m)以及近中部(sm)着丝粒染色体组成。其中,‘Allure’为2n=2x=32=14m(2SAT)+2sm,‘Cupdio’的核型公式为2n=2x=32=14m+2sm,Odessa的核型公式为2x=32=1M+15m(1SAT)。3个品种核型不对称系数分别为56.72%,56.25%和56.38%,核型分类显示其均为1A型。
The chromosome numbers and karyotypes of three Zantedeschia hubrid cultivars were studied using squashing method.The results showed that the chromosome numbers of all tested cultivars was 32.The karyotypes among them were not distinct and most chromosomes were metacentric or submetacentric.The karyotype formula of three Zantedeschia hybrid cultivars were as follows:2n=2x=32=14m(2SAT)+2sm for Allure;2n=2x=32=14m+2sm for Cupdio;and 2n=2x=32=1M+15m(1SAT) for Odessa.All cultivars belong to 1A type and their asymmetry index were 56.72%,56.25%and 56.38%,respectively.
