3个彩色马蹄莲引进品种的核型分析  

Karyotypic Analysis of Three Zantedeschia Hybrid Cultivars

作　　者：卫尊征[1] 殷选红[2] 熊敏[1] 王贤[1] 周涤[1] 

机构地区：[1]北京市农林科学院蔬菜研究中心,北京100097 [2]贵阳医学院基础医学院,贵州550004

出　　处：《植物遗传资源学报》2012年第4期650-654,共5页Journal of Plant Genetic Resources

基　　金：北京市优秀人才资助项目(2009B002005000010);国家科技支撑计划项目(2009BADB8B04);北京市农林科学院科技创新能力建设专项(KJCX201101010-27)

摘　　要：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.

关 键 词：彩色马蹄莲 染色体 核型 

分 类 号：S682.264[农业科学—观赏园艺]