摘要
1980年通过原生质体融合获得普通烟草与黄花烟草(N.tabacum+N.rustica),普通烟草和粉蓝烟草(N.tabacum+N.glauce)种间体细胞杂种植株,对其后代连续9年进行遗传性状观察和选育。结果表明:杂种一代呈典型的双亲中间型,杂种三代和回交二代开始分离,也有一直不分离的稳定株系和雄性不育株系,杂种后代育性差,回交能转育并逐步累积轮回亲本性状,染色体数目逐渐减少;在杂种后代选育中,获得了抗黑胫病、耐CMV并且具有天然优质香味的新品系和一些具有特殊利用价值的稳定株系。
The somatic hybrid plant were obtained through protoplast fusion of N.tabacum L.and N.rustica L.N.tabacum L.and N.glauca L.in 1980.The performace of hybrid plants are typical intermediate of their two parental lines.Segregation of most characters of hybrid plants begin in SH3 and (SH)B2 generagation.However, there are a few stable hybrids and some male sterile plants.The fertility of hybrid progenies is generally poor.The character of recurrent parent can be accumnlated gradually via back crosses and the number of chromosome in hybrid plants are gradually reduced.After nine years selection, some new stable breeding strains with black shank resistance, CMV—tolerance, good flavor and some valuable charecteristics were obtained.
出处
《中国烟草学报》
EI
CAS
CSCD
1992年第2期22-28,共7页
Acta Tabacaria Sinica
