摘要
通过对26份紫苏属材料进行染色体数目的观察,并对其1种(包括紫苏和白苏)及2变种材料各一份进行核型分析。结果显示,紫苏属植物染色体数均为2n=40,其核型公式分别为紫苏[P.frutescens(L.)Britton var.frutescens(zi-su)]2n=40=20m(2SAT)+10sm+10st;野生紫苏[P.frutescens var.purpurascens(Hayata)H.W.Li]2n=40=18m+14sm(2SAT)+8st;回回苏[P.frutescensvar.crispa(Benth.)Deane ex Bailey]2n=40=10m(2SAT)+14sm+16st;白苏[P.frutescens(L.)Britton var.frutescens(bai-su)]2n=40=24m+12sm(2SAT)+4st。结果表明,紫苏属不同原(变)种植物的染色体数目相同,但在核型上存在一定的差异,其染色体核型为首次报道。
We observed the chromosome number of twenty-six accessions of genus Perilla L. ,and the kary otypes of one species （including zisu and baisu） and two varietal species from genus Perilla were also analyzed. The results showed that the chromosome numbers of all genus Perilla were fourty. The karotype formula of P. frutescens （L.） Britton var. frutescens（zi-su） is 2n=40=20m（2SAT）＋10sm＋10st;P. frutescens var. purpurascens （Hayata） H. W. Li is 2n= 40 = 18m＋14sm（2SAT）＋8st ; P. frutescens var. crispa （Benth.） Deane ex Bailey is 2n = 40 = 10m （2SAT） ＋14sm＋ 16st ; P. fruteseens （L.） Britton var. frutescens （bai-su） is 2n=40=24m＋12sm（2SAT）＋4st. The results indicated that there were differences among the karotypes of the species and varietal species of genus Perilla and these karyotypes are reported for the first time.
出处
《西北植物学报》
CAS
CSCD
北大核心
2008年第10期1972-1977,共6页
Acta Botanica Boreali-Occidentalia Sinica
基金
校科技青年创新基金(00131600)
