OT系百合3个品种的核型分析  

Karyotype Analysis of Three Cultivars from OT Hybrid Lily

作　　者：魏迟[1] 王中轩[1] 贾桂霞[1] 

机构地区：[1]北京林业大学,北京100083

出　　处：《东北林业大学学报》2013年第11期59-62,共4页Journal of Northeast Forestry University

基　　金：林业公益性行业科研专项(201204609);北京地区花卉生产优势品种育种研发(YLHH201200116)

摘　　要：采用常规根尖压片法,对百合OT杂种系的‘Nymph’、‘Valparaiso’和‘Yelloween’3个品种进行了核型分析。因OT系列的品种为东方百合和喇叭百合杂种系间的杂交品种,染色体高度杂合,核型复杂,故将每条染色体分别列出单独分析。研究结果显示:‘Valparaiso’为三倍体,其余两种为二倍体。3品种均为3B型,核型不对称系数分别为79.79%、80.15%和81.73%。其中‘Valparaiso’可能存在B染色体。核型公式分别为‘Nymph’2n=2x=24=2m(SAT)+2sm+9t+11st;‘Valparaiso’3n=3x=36=4m(SAT)+3sm(SAT)+15st+14t;‘Yelloween’2n=2x=24=4m(2SAT)+16t+4st。The karyotype of three representative new cultivars from OT Hybrid Lilies, ＇ Nymph＇ , ＇ Valparaiso＇ and ＇ Yellow- een＇ were taken as samples for analysis by traditional squash method. The chromosomes were listed for analysis separately considering the karyotypic complexity of the OT lily as a intersectional hybrid. ＇ Valparaiso＇ is triploid, and the other two euhivars are diploid. Karyotypes of all the Lilium cuhivars are 3B, and the asymmetry index （As ~ K% ） are 79.79% , 80.18% and 81.73% , respectively. B chromosomes may be in ＇ Valparaiso＇. The karyotype formula of ＇ Nymph＇ is 2n= 2x = 24 = 2 m （SAT） ＋ 2 sm＋9 t ＋ 11 st, that of ＇ Valparaiso＇ is 3 n = 3x = 36 = 4 m （SAT） ＋ 3 sm （SAT） ＋ 15 st ＋ 14t, and that of ＇ Yelloween＇ is 2n = 2x = 24 = 4m （2SAT） ＋ 16t＋4st.

关 键 词：OT杂种系百合 染色体 核型分析 

分 类 号：S682.2[农业科学—观赏园艺] Q943.2[农业科学—园艺学]