摘要
为了研究鼠尾草属(Salvia)植物的染色体特性及进化程度,选用彩苞鼠尾草‘牛津蓝’(S.horminum)Oxford Blue’、龙胆鼠尾草(S.patens)‘露台Patio’、食用鼠尾草(S.officinalis)、土耳其鼠尾草(S.sclarea var.turkentanica)、蓝花鼠尾草(S.farinacea)‘鸵鸟Rhea Blue’、蓝花鼠尾草‘维多利亚Victoria White’和蓝花鼠尾草‘艳后Fairy Queen’的根尖细胞进行核型分析。试验结果显示,7个样本植物的核型公式依次为K(2n)=14=6m+1sm,K(2n)=18=6m+3sm,K(2n)=14=3m+4sm,K(2n)=20=8m+2sm,K(2n)=16=5m+1sm+2st,K(2n)=18=2m+4sm+3st,K(2n)=18=4m+5sm;不对称系数(AS.K%)分别为56.04%、61.20%、61.52%、60.90%、62.55%、73.11%、66.8%;核型分类标准分别属于“1A”型、“2B”型、“2A”型、“2B”型、“2B”型、“3B”型、“2B”型。根据数据推断,在7个样本中,不对称系数为73.11%,核型分类属于“3B”型的蓝花鼠尾草‘维多利亚’白色进化程度最高,彩苞鼠尾草‘牛津蓝’进化程度最低。核型分类同属于“2B”型的4种样本亲缘关系相对较近。
In order to study the characteristics and degree of similarity of Salvia spp.,karyotype analysis was performed on root tip cells of S.horminum‘Oxford Blue’,S.patens‘Patio’,S.japonica,S.sclarea var.turkentanica,S.farinacea‘Rhea Blue’,S.farinacea‘Victoria White’and S.farinacea‘Fairy Queen’.The karyotype formula of the seven sample plants was K(2n)=14=6m+1sm,K(2n)=18=6m+3sm,K(2n)=14=3m+4sm,K(2n)=20=8m+2sm,K(2n)=16=5m+1sm+2st,K(2n)=18=2m+4sm+3st,K(2n)=18=4m+5sm,respectively.The asymmetric coefficients(AS.K%)were 56.04%,61.20%,61.52%,60.90%,62.55%,73.11%and 66.84%,respectively,and the karyotype classification criteria were“1A”,“2B”,“2A”,“2B”,“2B”,“3B”and“2B”,respectively.According to data inference,the asymmetric coefficient was 73.11%,and the karyotype classification of“3B”type S.farinacea‘Victoria White’had the highest degree of evolution,with S.horminum‘Oxford Blue’having the lowest degree of evolution.The karyotype classification is closely related to the four samples belonging to“2B”type.
作者
冯琪
张家培
赵艺璇
孙浩男
刘冬云
FENG Qi;ZHANG Jiapei;ZHAO Yixuan;SUN Haonan;LIU Dongyun(College of Landscape Architecture and Tourism,Hebei Agriculture University,Baoding 071000,Hebei,China)
出处
《草业科学》
CAS
CSCD
2020年第4期736-742,共7页
Pratacultural Science
基金
河北省重点研发计划现代种业科技专项(19226327D)。
关键词
鼠尾草
染色体
核型分析
细胞学
Salvia
chromosome
karyotype analysis
cytology
