摘要
巴西橡胶(Hevea brasiliensis)是重要的热带经济作物。PR107与海垦1号是中国橡胶树种植、育种的两个重要品种。利用染色体直接敲片技术研究橡胶品种PR107、海垦1号的染色体数目和核型。结果表明:PR107染色体数目为2n=36,核型公式为2n=36=30m(2sat)+6sm,海垦1号染色体数目为2n=36,核型公式为2n=36=22m(2sat)+14sm(2sat),两者核型类型均为2B型。
Hevea brasiliensis .PR107 and Haiken 1 are two important species of Chinese rubber tree planting and breeding.The chromosome number and karyotype of PR107 and Haiken 1 were studied by applying fingertip pressing method. The results indicated that the number of the somatic chromosome of PR107 was 64, and its karyotype formula was 2n=36=30m（2sat） ＋ 6sm. As to Haiken 1, the karyotype type formula was 2n=36=22m（2sat）＋ 14sm（2sat）, the karyotype of PR107 and Haiken 1 were 2B.
出处
《中国农学通报》
CSCD
北大核心
2009年第6期244-248,共5页
Chinese Agricultural Science Bulletin
基金
国家科技基础条件平台项目"热带作物种质资源标准化整理
整合及共享试点"(2005DKA21000-5-63)
关键词
巴西橡胶树
染色体
核型分析
Hevea brasiliensis, chromosome, karyotype analysis
