文献类型： 外文期刊

作者： Ai, C. X. ¹ ; Yu, X. M. ² ; Dahlenburg, A. ³ ; Zhao, H. J. ⁴ ; Zhao, Y. ⁵ ; Liu, Q. Z. ¹ ;

作者机构： 1.Shandong Inst Pomol, Tai An 271000, Shandong, Peoples R China

2.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Danzhou 571737, Peoples R China

3.S Australian Res & Dev Inst, Adelaide, SA 5001, Australia

4.Shandong Acad Agr Sci, Jinan 250100, Peoples R China

5.USDA ARS, Mol Plant Pathol Lab, Beltsville, MD 20705 USA

关键词： dinucleotide;chemiluminescence detection;DNA-typing;polymorphism;cultivar characterization

期刊名称：EUROPEAN JOURNAL OF HORTICULTURAL SCIENCE （ 影响因子：1.482； 五年影响因子：1.503 ）

ISSN： 1611-4426

年卷期： 2008 年 73 卷 3 期

页码：

收录情况： SCI

摘要： 24 simple sequence repeat (SSR) markers were isolated and characterized in P. pseudocerasus LindI. from the cultivar 'Laiyang Short cherry. To amplify SSR loci primers were developed to flank each repeat region. and they were initially tested on 6 cherry samples using chemiluminescence detection. 18 loci where shown to be polymorphic and the number of alleles detected per locus varied from 2 to 6. 12 loci were chosen for the analysis of 26 cultivars grown in North China using the semi-automatic system ABI PRISM 377. These 12 markers showed a high level of genetic polymorphism with a total of 75 alleles; the number of alleles ranged from 4 to 10 per locus, with an average level of 6.3. The mean expected and observed heterozygosity was 0.743 (range: 0.680-0.845) and 0.829 (range: 0.730-0.930) respectively. The estimated frequency of null alleles showed a positive value for 3 loci, but except for 1 locus, the values were very low. The total value for the probability of identity was 7.01x10(-13). Paternity exclusion probability was very high (0.999), sufficiently high to study pollen flow.