三倍体杨树核型分析

详细信息

The Karyptype Analysis of Triploid Poplar

1.
Department of Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
2.
Laboratory of Cell Biology, The Research Institute of Forestry, CAF, Beijing 100091, China

摘要: 对4种三倍体杨树核型进行了比较分析,三倍体毛白杨核型为:2n=3x=57=1M+31m+10sm+15st;三倍体I-214为:2n=3x=57=2M+33m(2SAT)+10sm(1SAT)+10st(3SAT)+2t;三倍体武黑1号为:2n=3x=57=2M+38m(4SAT)+14sm(2SAT)+3st;三倍体廊坊3号为:2n=3x=57=35m+10sm(1SAT)+10st(2SAT)+2t(1SAT)。结果显示三倍体毛白杨核型与三倍体黑杨核型有显著不同,表明它们的基因组结构不同,起源各异。
- 杨树 /
- 三倍体 /
- 核型分析
Abstract: This paper analyzed the karyotypes of 4 species of triploid poplar. The results were as follows: Populus tomentosa, 2n=3x=57=1 M+31 m+10 sm+15 st; P.×euramericana cv. ’I-214’, 2n=3x=57=2 M+33 m(2 SAT)+10 sm(1 SAT)+10 st(3 SAT)+2 t; P. euramericana cv. Wuhei-1, 2n=3x=57=2 M+38 m(4 SAT)+14 sm(2 SAT)+3 st; P. shanhaiguanensis×(P. simonii×P. pyramidalis-12+Ulmus pumila), 2n =3x=57=35 m+(10 sm)(1 SAT)+(10 st)(2 SAT)+2 t(1 SAT). The results of karyotype analysis showed significant differences between species in triploid P. tomentosa and P.×euramericana. This indicated that their geneone structure and origin were different. This study provided valuable reference for the research of origin and evolution of triploid poplar.
- Poplar /
- Triploid /
- Karyotype analysis