【摘要】 采用染色体常规制片技术,对Parasol、Corvara等6个东方百合品种进行了染色体形态研究。结果表明:Parasol的核型公式为2n=24=8m(1SAT)+6sm(1SAT)+6st(1SAT)+4t,Corvara的核型公式为2n=24=6m(1SAT)+8sm(3SAT)+8st(2SAT)+2t,Lido的核型公式为2n=24=6m+6sm+12st(2SAT),Alessia的核型公式为2n=24=12m(3SAT)+4sm(2SAT)+8st,Anaise的核型公式为2n=24=10m+8sm+6st,Crystal Blanca的核型公式为2n=24=14m(4SAT)+4sm+6st。Alessia、Anaise和Crystal Blanca 3个品种的核型类型为2B型,核型不对称系数范围为64.81%~66.1%;Corvara和Lido的核型为3B型,核型不对称系数范围为70.71%~70.74%;Corvara的核型为2A型,核型不对称系数为70.3%。除Anaise外,其他5个品种的染色体均有随体,其中3个品种的第2对染色体上均携有随体。更多还原

【Abstract】 The karyotypes of 6 oriental cultivars of lily were studied using traditional squash method.The results indicated as follows:(1) The karyotype of ’Parasol’ was 2n=24=8m(1SAT)+6sm(1SAT)+6st(1SAT)+4t,the karyotype of ’Corvara’ was 2n=24=6m(1SAT)+8sm(3SAT)+8st(2SAT)+2t,the karyotype of ’Alessia’ was 2n=24=12m(3SAT)+4sm(2SAT)+8st,the karyotype of ’Anaise’ was 2n=24=10m+8sm+6st,the karyotype of ’Crystal Blanca’ was 2n=24=14m(4SAT)+4sm+6st.(2) The karyotype of ’Alessia’,’Anaise’ and ’Crystal Blanca’ belonged to 2B,and the asymmetry index was 70.71%~70.74%;the karyotype of ’Corvara’ and ’Lido’ belonged to3B,and the asymmetry index was 70.71%~70.74%;the karyotype of ’Corvara’ belonged to 2A,and the asymmetry index was 70.3%.(3) The secondary constriction was observed in five other cultivars except ’Anaise’,the secondary constriction was located on the second pairs of chromosomes in three cultivars.更多还原