›› 2013, Vol. 21 ›› Issue (4): 821-827.DOI: 10.11733/j.issn.1007-0435.2013.04.029

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Somatic Cell Karyotypes of Three Elytrigia elongata Accessions

MENG Lin1, MAO Pei-chun1, ZHANG Xiao-yan2, GUO Qiang1, TIAN Xiao-xia1   

  1. 1. Beijing Research and Development Center for Grass and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;
    2. Wuwei Occupational College of Gansu, Wuwei, Gansu Province 733000, China
  • Received:2013-02-04 Revised:2013-04-02 Online:2013-08-15 Published:2013-08-14

3份长穗偃麦草种质的体细胞核型分析

孟林1, 毛培春1, 张晓燕2, 郭强1, 田小霞1   

  1. 1. 北京市农林科学院 北京草业与环境研究发展中心, 北京 100097;
    2. 甘肃省武威职业学院, 甘肃 武威 733000
  • 作者简介:孟林(1966- ),男,内蒙古乌兰察布人,博士,研究员,主要从事草业资源研究,E-mail: menglin9599@sina.com
  • 基金资助:
    国家自然科学基金项目(31272489);北京市自然科学基金项目(6082009);北京市农林科学院科技创新能力建设专项(KJCX201101003)资助

Abstract: Somatic cell karyotypes of three Elytrigia elongata accessions collected from different countries were studied using root tip squash method to provide cytological characteristics and systematic evolution. Results showed that the chromosome karyotype of EE001 collected from Xinjiang of China was K(2n)=10X=70=50m+16sm+4st, and the composition of relative length chromosome was 1L+17M2+15M1+2S. The chromosome karyotype of EE014 collected from Germany was K(2n)=10X=70=48m+20sm+2st, and the composition of relative length chromosome was 3L+14M2+13M1+5S. The chromosome karyotype of EE020 collected from Portugal was K(2n)=10X=70=38m+22sm+8st+2t, and the composition of relative length chromosome was 5L+11M2+15M1+4S. The chromosome karyotypes of three E.elongata accessions were belonged to "2B" types.

Key words: Elytrigia elongata, Somatic cell, Chromosome, Karyotypes

摘要: 采用根尖压片法,对不同国家来源的3份长穗偃麦草(Elytrigia elongata)种质材料的体细胞染色体核型进行分析,旨在为其细胞学特性和系统演化的研究奠定科学基础。结果表明:来源于中国新疆的EE001细胞染色体相对长度组成为1L+17M2+15M1+2S,核型公式为K(2n)=10X=70=50m+16sm+4st;来源于德国的EE014细胞染色体相对长度组成为3L+14M2+13M1+5S,核型公式为K(2n)=10X=70=48m+20sm+2st;来源于葡萄牙的EE020细胞染色体相对长度组成为5L+11M2+15M1+4S,核型公式为K(2n)=10X=70=38m+22sm+8st+2t。3份长穗偃麦草种质的体细胞染色体核型均为"2B"类型。

关键词: 长穗偃麦草, 体细胞, 染色体, 核型

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