新收集燕麦种质的遗传多样性和冗余性鉴定  

Identification of Genetic Diversity and Redundancy in Recently Collected Oat Accessions

作　　者：王玉亭[1] 张宗文[1,2] 李高原[3] 张恩来[1,4] 吴斌[1] 

机构地区：[1]中国农业科学院作物科学研究所,北京100081 [2]国际生物多样性中心东亚办事处,北京100081 [3]青海省农林科学院作物研究所,西宁810016 [4]云南省农业科学院生物技术与种质资源研究所,昆明650223

出　　处：《植物遗传资源学报》2012年第1期16-21,共6页Journal of Plant Genetic Resources

基　　金：国家作物种质资源保护专项(NB2010-2130135-25-06)

摘　　要：从青海省4个县收集的60份燕麦样本中鉴别可能的重复材料,为编目和入库保存提供依据。通过名称与来源分析、形态变异性与相似性评价以及分子标记遗传多样性与冗余性鉴定,初步认为这些材料的来源不同,特性明显,遗传多样性丰富,具有一定的保存和利用潜力。但从中也发现同名材料较多,个别材料间遗传相似性较高,存在一定遗传冗余性,并鉴别出可能的重复材料,如白燕麦(1083)与白燕麦(1093)、燕麦(1225)与大燕麦(1226)等。本研究为资源工作者有效鉴别种质收集品中的重复材料、提高保种效率提供参考依据。This study was to identify possible duplicates from 60 samples of oat germplasm newly collected in four counties of Qinghai province in order to determining the accessions for cataloguing and conservation.By analyzing the names and sources of the collections,evaluating the variation and similarity of morphological traits,and assessing genetic diversity and redundancy with molecular markers,it showed that these oat collections had different sources,unique characteristics and high genetic diversity,with high potential for conservation and use.However,it was found that many samples have the same names and some samples have high genetic similarity.Therefore,there might be genetic redundancy in the collections and a few possible duplicates were identified,i.e.＂White Oat（1083）＂ vs.＂White Oat（1093）＂,＂Oat（1225）＂ vs.＂Large Oat（1226）＂.This study will be a useful reference for germplasm curators to effectively identify duplicates and improve the conservation efficiency.

关 键 词：燕麦 种质收集 重复 多样性 冗余性 

分 类 号：S512.6[农业科学—作物学]