摘要
果梅是配子体自交不亲和树种,但在长期进化过程中也出现了自交亲和品种。以果梅典型的自交不亲和品种‘南高’和自交亲和品种‘甲州小梅’为对照,采用田间自交授粉试验对原产于中国的‘四川白梅’和‘长农17’两个果梅品种进行了自交亲和性鉴定,结果表明:其自花授粉坐果率分别为30.73%和16.27%,属于自交亲和品种。进一步通过AS-PCR分析发现花粉SFB基因存在一段插入序列,造成了分子水平的基因突变。推测该基因的突变使‘四川白梅’和‘长农17’SFB功能发生改变,从而自交亲和。
Japanese apricot(Prunus mume Sieb. et Zucc)is a fruit crop with gametophytic self-incompatibility. Some self-compatible varieties appeared during long-term evolution. In this study,a typical self-incompatibility cultiva‘rNanko’and self-compatible cultiva‘rKoshinoume’of Japanese apricot were taken as controls. We identified the self-compatibility of two cultivars‘Sichuan Baimei’and ‘Changnong 17’native to China through field self-pollination test,the results demonstrated that the rate of fruiting set were 30.73% and 16.27%,respectively. Further analysis of AS-PCR showed that there were insertion mutation in pollen SFB genes of the two cultivars,which possibly resulted in self-compatibility of these two cultivars.
出处
《园艺学报》
CAS
CSCD
北大核心
2012年第3期453-460,共8页
Acta Horticulturae Sinica
基金
农业部公益性行业专项(201003058)
国家自然科学基金项目(31101526)
江苏省自然科学基金项目(BK2011642)
江苏省园艺学优势学科建设经费项目
关键词
果梅
自交亲和性
鉴定
AS-PCR
Japanese apricot
self-compatibility
identification
AS-PCR