园艺学报 ›› 2010, Vol. 37 ›› Issue (1): 83-88.
蹇洪英;张颢;王其刚; 唐开学*; 李树发;邱显钦; 晏慧君;张婷
JIAN Hong-ying;ZHANG Hao;WANG Qi-gang; TANG Kai-xue*; LI Shu-fa;QIU Xian-qin;YAN Hui-jun;ZHANG Ting
摘要: 采用常规压片法对‘月月红’等11个中国古老月季品种进行了以染色体形态和倍性为主的核型分析研究。结果表明: (1) 不同品种的染色体数差异较大, ‘绿萼’、‘玉玲珑’、‘月月红’和‘月月粉’是二倍体(2n = 2x = 14) ; ‘春水绿波’和‘湖中月’是三倍体( 2n = 3x = 21) , ‘大富贵’、‘金粉莲’、‘菊红潮’、‘映日荷花’和‘思春’是四倍体(2n = 4x = 28) 。(2) 11个品种染色体的绝对长度均在1~3μm之间; 品种间核不对称系数变化范围为56.560% ~60.376%; 除‘思春’和‘映日荷花’外,其它9个品种中均未观察到随体存在。(3) ‘春水绿波’和‘湖中月’的核型公式为2n = 3x = 21 = 3 sm +18m, 核型类型均是1A; ‘金粉莲’和‘菊红潮’的核型公式为2n = 4x = 28 = 4 sm + 24m, ‘大富贵’的核型公式为2n = 4x = 28 = 2 sm + 26m, 核型类型都是1A; ‘绿萼’的核型公式是2n = 2x = 14 = 2 sm + 12m, 核型类型为1B; ‘思春’和‘映日荷花’的核型公式是2n = 4x = 28 = 4 sm + 22m + 2m ( SAT) , 核型类型为1A; ‘玉玲珑’的核型公式是2n = 2x = 14 = 2 sm + 12m, 核型类型为1A; ‘月月粉’和‘月月红’的核型公式是2n = 2x = 4 sm + 10m, 核型类型为2A。
中图分类号: