研究报告

俄罗斯远东及黑龙江省春小麦种质资源的遗传多样性

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  • 1黑龙江省农业科学院作物育种研究所, 哈尔滨 150086
    2黑龙江省农业科学院对俄农业技术合作中心, 哈尔滨 150086

收稿日期: 2013-01-18

  修回日期: 2013-04-10

  网络出版日期: 2014-01-07

基金资助

保障中国粮食安全的农作物品种改良合作计划;小麦等作物航天工程育种技术及新品种选育研究

Genetic Diversity of Wheat Germplasm Resources from Far East Russia and Heilongjiang Province

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  • 1Crop Breeding Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China

    2Sino-Russia Agricultural Scientific and Technological Cooperation Center of Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China

Received date: 2013-01-18

  Revised date: 2013-04-10

  Online published: 2014-01-07

摘要

利用31个SSR引物分析56份俄罗斯远东地区春小麦(Triticum aestivum)及56份黑龙江省2010生(区)试品系的遗传变异和群体结构。结果表明, 黑龙江省春小麦和俄罗斯远东春小麦明显分化为两大类群, 聚类结果同地理来源的划分基本一致; 居群间和个体间都存在显著性差异; 群体的遗传分化程度较高, 但群体间的基因交流有限, 血缘相对比较单一。鉴于部分黑龙江省同一育种单位的品种(系)间的遗传距离非常相近, 目前亟需拓宽和创制新的小麦种质资源。实验结果证明种质资源遗传多样性与地理来源和人为选择压力密切相关。

本文引用格式

马淑梅, 张睿, 孙岩, 刘东军, 郭怡璠, 刘文林, 宋凤英, 杨淑萍, 张举梅, 孙光祖, 张宏纪 . 俄罗斯远东及黑龙江省春小麦种质资源的遗传多样性[J]. 植物学报, 2014 , 49(2) : 150 -160 . DOI: 10.3724/SP.J.1259.2014.00150

Abstract

To evaluate the genetic diversity and population structure of wheat germplasm in the far east of Russia and Heilongjiang Province of China, we characterized a set of 56 accessions of spring wheat from Russia and 56 strains of spring wheat from regional and production tests in 2010 from Heilongjiang province using 31 single-sequence repeat primers. The germplasm resources were divided into 2 clusters, which agreed with their geographical origin. Highly significant variance was found for both populations and individuals. The level of genetic differentiation was high and the gene flow was low. We found close genetic distance among strains in the same breeding institutions of Heilongjiang province, so the genetic resources must be broadened. The genetic relationship and diversity of wheat are closely associated with their geographical origin and selection pressure by humans.

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