摘要
[目的]研究狗头枣的染色体数目与核型。[方法]以狗头枣幼嫩茎尖为试验材料,采用酶解去壁低渗法观察染色体,并作核型分析。[结果]狗头枣细胞经改良品红染色、压片后获得良好的有丝分裂相。[结论]狗头枣的染色数目为2n=24,核型为2B型,核型公式为:2n=2X=24=5 m+5 sm+2 st。
[ Objective ] The chromosome number and karyotype in Chinese date Goutouzao were studied. [ Method] Taking the young shoot tips of Chinese date Goutouzao as the experimental materials, chromosome were observed by digestion of the cell wall with enzyme. [ Result ] The better mitotic phase was obtained after dyeing by improved stained magenta. [ Conclusion] The chromosome number of Goutouzao was 2n =24. Karyotype type was 2B, and karyotype formula was 2n =2X =24 =5 m ＋5 sm ＋2 st.
出处
《安徽农业科学》
CAS
北大核心
2008年第26期11305-11306,共2页
Journal of Anhui Agricultural Sciences
基金
陕西省重大科技攻关项目(2006KZ05-G4)
关键词
狗头枣
染色体
核型
Chinese date Goutouzao
Chromosome
Karyotype analysis
