| 三份偃麦草种质的染色体核型分析 |
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| 引用本文： | 张晓燕,毛培春,孟林,高洪文,张德罡.三份偃麦草种质的染色体核型分析[J].草业学报,2011,20(4):194-201. |
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| 作者姓名： | 张晓燕 毛培春 孟林 高洪文 张德罡 |
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| 作者单位： | 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.中国农业科学院北京畜牧兽医研究所, 北京 100193;3.甘肃农业大学草业学院, 甘肃 兰州 730070 |
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| 基金项目： | 北京市自然科学基金项目(6082009);“十一五”国家重点科技支撑项目(2008BADB3B01,2008BADB3B05);北京市农林科学院科技创新能力建设专项(KJCX201101003)资助 |
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| 摘 要： | 选用产地来源不同的3份偃麦草的种子为试验材料,采用根尖压片法进行细胞染色体核型分析,旨在为其细胞学特性和演化趋势的研究奠定科学基础。结果表明,来源于俄罗斯列宁格勒的偃麦草种质ER044染色体数目为2n=6X=42,染色体相对长度组成为:4L+14M2+20M1+4S,核型公式为:K(2n)=6X=42=2M+32m+8sm。来源于阿富汗喀布尔的偃麦草种质ER058染色体数目为2n=6X=42,染色体相对长度组成为: 2L+20M2+16M1+4S,核型公式K(2n)=6X=42=30m+12sm(2sat)。采自于中国新疆的偃麦草种质ER132染色体数目为2n=6X=42,染色体相对长度组成为:4L+16M2+16M1+6S,核型公式为:K(2n)=6X=42=32m+8sm(4sat)+2st。3份偃麦草种质的染色体核型均属于“2B”类型。
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| 关 键 词： | 偃麦草 染色体 核型 |
| 收稿时间： | 2010-11-25 |
Analysis of chromosome karyotypes on three germplasm of Elytrigia repens |
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| ZHANG Xiao-yan,MAO Pei-chun,MENG Lin,GAO Hong-wen,ZHANG De-gang.Analysis of chromosome karyotypes on three germplasm of Elytrigia repens[J].Acta Prataculturae Sinica,2011,20(4):194-201. |
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| Authors: | ZHANG Xiao-yan MAO Pei-chun MENG Lin GAO Hong-wen ZHANG De-gang |
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| Institution: | 1.Beijing Research and Development Center for Grasses and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;2.Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing 100193, China;3.College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China |
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| Abstract: | The chromosome karyotypes of three germplasm of Elytrigia repens were studied using the root tip squash method in order to provide the important scientific basis for the researches of cytological characteristics and evolutionary tendency.The results showed that the chromosome type of ER044 growing in Leningred of Russia was K(2n)=6X=42=2M+32m+8sm,the composition of relative length chromosomes was 4L+14M2+20M1+4S.The chromosome type of ER058 growing in Kabul of Afghanistan was K(2n)=6X=42=30m+12sm(2sat),the composition of relative length chromosomes was 2L+20M2+16M1+4S.The chromosome type of ER132 growing in Xinjiang,China was K(2n)=6X=42=32m+8sm(4sat)+2st,the composition of relative length chromosomes was 4L+16M2+16M1+6S.The chromosome karyotypes of three germplasm were belonged to "2B" types. |
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| Keywords: | Elytrigia repens chromosome karyotypes |
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