摘要
首次报道红花木 (Loropetalumchinensevar.rubrum)、长红木 (Loropetalumchinensevar.semperrubrum)的染色体数目及其核型分析。两者体细胞染色体数目均为 2n =2 4。按Levan和我国植物染色体的分类标准 ,红花木的核型公式为 :2n =2x =2 4=14m + 8Sm + 2St;长红木的核型公式为 :2n =2x =2 4=12m+ 10Sm + 2St。根据Stebbins划分的核型对称性的标准 ,两者都属“2A”
The chromosome number and karyotype analysis of two plants namely, Loropetalum chinense var. rubrum and Loropetalum chinense var. semper rubrum, are reported for the first time. The two plants' chromosome numbers are the same, 2n=24. According to the classification criteria on both Levan and the plant chromosome in China, the two plants’ karyotype formula are as follows: for Loropetalum chinense var. rubrum, 2n=2x=24=14m+8Sm+2St and for Loropetalum chinense var. semper rubrum, 2n=2x=24=12m+10S+2St. Based on stebbins classification criterion of karyotype symmetry, the two plants belong to “2A” karyotype.
出处
《江西农业大学学报》
CAS
CSCD
2001年第2期228-230,共3页
Acta Agriculturae Universitatis Jiangxiensis
关键词
红花Ji木
长红Ji木
染色体
核型分析
Loropetalum chinense var. rubrum
Loropetalum chinense var. semper rubrum
chromosome
karyotype
