摘要
热研7-33-97(Hevea brasiliensis,热研7-33-97)和RRIM600(Hevea brasiliensis,RRIM600)都是大规模推广种植的优良橡胶树品种,对其核型研究在橡胶树育种中有着重要的意义。采用去壁低渗方法对热研7-33-97和橡胶栽培品系RRIM600的染色体数目与核型进行了研究。结果表明:热研7-33-97的染色体核型公式为2n=36=34m(4sat)+2sm,核型为2B型。RRIM600的染色体核型公式为2n=36=28m(4sat)+8sm,核型为2B型。热研7-33-97和RRIM600的核型在进化上属于比较原始的类型。该研究可为橡胶树育种、种质资源鉴定及基因定位提供细胞学基础。
Reyan 7-33-97 （ Hevea brasiliensis, Reyan 7-33-97 ） and RRIM600 （ Hevea brasiliensis, RRIM600） were large-scale of the extension cultivation of choiceness, and their karyotype analysis was important in breeding. Karyotypes Reyan 7-33-97and RRIM600 were analysed with the enzyme and low osmotic method. The karyotype formula of Reyan 7-33-97 was 2n = 36 = 34m（4sat） ＋ 2sin. Which belonged to 2B type. As to RRIM600, the karyotype formula of RRIM600 was 2n = 36 = 28m（4sat） ＋ 8sm. The karyotype RRIM600 was also belong to 2B type. The karyotype formulas of Reyan 7-33-97 and RRIM600 were relatively original during genome evolution. The study will provide cytological basis for the breeding, germplasm analysis and gene location of Hevea brasiliertsis Muell. Arg.
出处
《武汉植物学研究》
CSCD
北大核心
2009年第5期537-540,共4页
Journal of Wuhan Botanical Research
基金
农业部"天然橡胶产业技术体系"项目
中国热带农业科学院橡胶研究所科研基本科研业务费专项
海南省自然科学基金指导性项目(80658)
