摘要
通过对6个树上干杏材料的树型、枝、叶、花和果实等生物学特性进行调查,并采用RAPD标记与其他62个杏品种进行遗传多样性分析,对新疆树上干杏的亲缘关系进行了鉴定。结果显示:(1)6个树上干杏材料在树型、枝、叶、花和果实等生物学特性上存在较小差异,难以作为准确鉴别树上干杏不同株系的指标。(2)聚类分析的结果显示,6个树上干杏材料的遗传相似系数在0.831与0.938之间,可被分为3个不同株系:S1、S2、S3和S6为株系Ⅰ,S4为株系Ⅱ、S5为株系Ⅲ。(3)与其他62份杏材料的聚类分析结果显示,树上干杏株系与新疆的李光杏的亲缘关系最近,其遗传相似系数达到0.802。本研究利用生物学特性观察结合RAPD标记的方法,对新疆地区树上干杏的亲缘关系进行鉴定,为树上干杏种质的挖掘和品种遗传改良奠定基础。
Genetic relationship of an apricot species,Shushanggan from Xinjiang was analyzed through the random amplified polymorphic DNA（RAPD） makers and biological characteristic analysis,including tree type,leaf,floral,fruit characters and so on.The results are reported as follows.（1） Within the 6 Shushanggan materials,no significant differences were observed in tree type,leaf,floral,fruit characters,therefore,they could not be used as biological standards for identification.（2） Clustering analysis displayed that the genetic similarities of the 6 Shushanggan materials were from 0.831 to 0.938,and it could be gathered into three classes,S1,S2,S3,and S6 of classⅠ and S5 of classⅡand S4 of class Ⅲ.（3） The highest similarity（0.802）between Shushanggan apricot group and ＂Liguang＂ apricot in Xinjiang indicated the close sibship.
出处
《西北林学院学报》
CSCD
北大核心
2011年第5期76-81,共6页
Journal of Northwest Forestry University
基金
新疆兵团科技局项目(2009GC03)
关键词
树上干杏
亲缘关系
RAPD标记
生物学特性
Shushanggan apricot
genetic relationship
random amplified polymorphic DNA（RAPD） maker
biological characteristics
