摘要
应用简单重复序列(SSR)标记方法对辽宁省近15年的14个大面积种植的水稻品种进行遗传多样性分析的结果表明,17对引物共产生43个位点,其中多态性位点17个,平均每对SSR引物检测到2.53个,占位点总数的39.53%。用Nei’s公式计算水稻品种间的遗传距离,并以算术平均非加权聚类(UPGMA)法进行聚类分析并结合系谱分析结果表明,辽宁省近15年的水稻主栽品种遗传多样性不够丰富,多数品种间的亲缘关系较近,欲进一步提高产量还需拓宽遗传基础。
The present study used simple sequence repeat (SSR) markers to reveal the genetic diversity of the 14 extensive dee (Oryza sativa) cultivars of Liaoning province in the last 15 years. 17 markers detected 43 alleles with averaged 2.53 alleles per SSR locus. Based on the pair wise comparisons of amplification products the genetic distance was calculated using Nei's genetic distance and a dendrogram was constructed using an unweighted pair group method with arithmetic averages (UPGMA). It was concluded that the genetic background was vulnerable among dee in Liaoning province.
出处
《植物生理学通讯》
CSCD
北大核心
2007年第1期69-72,共4页
Plant Physiology Communications
基金
辽宁省重点实验室专项资金计划项目
辽宁省博士启动基金(2001102061)。