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小麦水旱地品种回交二代农艺性状改良效应分析

满强 赵慧 徐萍 王亚飞 李世景 孙聚涛 林永岭 张正斌

满强, 赵慧, 徐萍, 王亚飞, 李世景, 孙聚涛, 林永岭, 张正斌. 小麦水旱地品种回交二代农艺性状改良效应分析[J]. 中国生态农业学报(中英文), 2019, 27(4): 563-571. doi: 10.13930/j.cnki.cjea.180168
引用本文: 满强, 赵慧, 徐萍, 王亚飞, 李世景, 孙聚涛, 林永岭, 张正斌. 小麦水旱地品种回交二代农艺性状改良效应分析[J]. 中国生态农业学报(中英文), 2019, 27(4): 563-571. doi: 10.13930/j.cnki.cjea.180168
MAN Qiang, ZHAO Hui, XU Ping, WANG Yafei, LI Shijing, SUN Jutao, LIN Yongling, ZHANG Zhengbin. Improvement effect of agronomic traits in the second backcrossing generation of dryland and irrigated wheat varieties[J]. Chinese Journal of Eco-Agriculture, 2019, 27(4): 563-571. doi: 10.13930/j.cnki.cjea.180168
Citation: MAN Qiang, ZHAO Hui, XU Ping, WANG Yafei, LI Shijing, SUN Jutao, LIN Yongling, ZHANG Zhengbin. Improvement effect of agronomic traits in the second backcrossing generation of dryland and irrigated wheat varieties[J]. Chinese Journal of Eco-Agriculture, 2019, 27(4): 563-571. doi: 10.13930/j.cnki.cjea.180168

小麦水旱地品种回交二代农艺性状改良效应分析

doi: 10.13930/j.cnki.cjea.180168
基金项目: 

国家重点研发计划项目 2016YFD0100102-11

中国科学院战略性先导科技专项 A Class, XDA0803010703

中国科学院种子创新研究院项目和河北科技大学博士科研启动基金 QD201419

详细信息
    作者简介:

    满强, 主要研究方向为作物遗传育种。E-mail:manqiang2011@163.com

    通讯作者:

    张正斌, 主要研究方向为作物遗传育种。E-mail:zzb@sjziam.ac.cn

  • 中图分类号: S512.1+1

Improvement effect of agronomic traits in the second backcrossing generation of dryland and irrigated wheat varieties

Funds: 

the National Key Research and Development Project of China 2016YFD0100102-11

the Special Fund for Strategic Pilot Technology of Chinese Academy of Sciences A Class, XDA0803010703

the Project of the Innovative Academy of Seed Design, Chinese Academy of Sciences and the Doctoral Scientific Research Foundation of Hebei University of Science and Technology QD201419

More Information
  • 摘要: 为研究干旱条件下小麦水旱地品种回交后代群体农艺性状改良效应,本研究以旱地品种‘长6878’为供体亲本、水地品种‘济麦22’为轮回亲本获得的回交二代(BC2)后代材料,对其株高、穗长、穗下节间长、分蘖数、小穗数、穗粒数、单株生物学产量、单株粒重、千粒重、经济系数等10个农艺性状进行相关、聚类和主成分分析。结果显示,回交后代材料在株高、穗长、穗下节间长、分蘖数等性状偏向于轮回亲本‘济麦22’,同时在小穗数、穗粒数、单株生物学产量、单株粒重、千粒重、经济系数等性状中存在超亲效应。相关分析表明,经济系数与单株粒重显著正相关,而单株粒重又与株高、穗长、分蘖数、小穗数、穗粒数、单株生物学产量、千粒重等7个性状达极显著正相关水平。在欧式距离40处,BC2群体分为4类,以轮回亲本‘济麦22’为核心的第Ⅱ类占BC2代总数的30.5%,供体亲本‘长6878’单独划为第Ⅳ类;在欧式距离45处将第Ⅰ类(占BC2代总数的58%)和第Ⅱ类合并成一个新的类群,即群体中88.5%的BC2单株和轮回亲本划分为一类。主成分分析得到5个主成分因子对BC2代农艺性状变异累计贡献率为85.51%,并筛选出综合得分高的10个株系,可作为后代重点选育。综合以上结果,在BC2代已经取得了良好的农艺性状定向遗传改良效应,为回交定向改良小麦抗旱水分高效利用和选育新品种提供理论依据和技术支撑。
  • 图  1  小麦水旱地亲本及回交二代群体10个农艺性状的分布

    J:轮回亲本‘济麦22’; C:供体亲本‘长6878’.

    Figure  1.  Distributions of 10 agronomic traits of parents and population of the second backcrossing generation of dryland and irrigated wheat varieties

    J: recurrent parent 'Jimai 22'; C: donor parent 'Chang 6878'.

    图  2  小麦水旱地亲本及回交二代群体10个农艺性状聚类分析结果

    1~200: BC2后代品系数; 201:轮回亲本‘济麦22’; 202:供体亲本‘长6878’。

    Figure  2.  Cluster analysis for 10 agronomic traits of parents and population of the second backcrossing generation of dryland and irrigated wheat varieties

    1-200: the lines number of the second backcrossing generation; 201: recurrent parent 'Jimai 22'; 202: donor parent 'Chang 6878'.

    表  1  小麦水旱地亲本回交二代群体10个农艺性状的相关性分析

    Table  1.   Correlation analysis among10 agronomic traits of population of the second backcrossing generation of dryland and irrigated wheat varieties

    性状
    Trait
    株高
    Plant
    height
    穗长
    Spike
    length
    穗下节间长
    Internode
    length under
    spike
    分蘖数
    Tiller
    number
    小穗数
    Spikelet
    number
    穗粒数
    Grains per
    spike
    单株生物
    学产量
    Biomass per
    plant
    单株粒重
    Grain
    weight per
    plant
    千粒重
    1000-grain
    weight
    经济系数
    Economic
    index
    株高Plant height 1.000
    穗长Spike length 0.365** 1.000
    穗下节间长Internode length under spike 0.371** 0.211** 1.000
    分蘖数Tiller number 0.191** 0.447** 0.066 1.000
    小穗数Spikelet number 0.191** 0.339** 0.045 0.184** 1.000
    穗粒数Grain number per spike 0.200** 0.303** 0.069 0.167* 0.677** 1.000
    单株生物学产量Biomass per plant 0.325** 0.519** 0.172* 0.902** 0.279** 0.307** 1.000
    单株粒重Grain weight per plant 0.257** 0.474** 0.161* 0.887** 0.262** 0.296** 0.983** 1.000
    千粒重1000-grain weight 0.103 0.106 0.094 0.286** 0.073 0.152* 0.377** 0.396** 1.000
    经济系数Economic index -0.361** -0.143* -0.098 0.013 -0.061 -0.029 0.021 0.180* 0.136 1.000
    *和**表示相关性在P < 0.05和P < 0.01显著。* and ** indicate significant correlation at 0.05 and 0.01 levels, respectively.
    下载: 导出CSV

    表  2  小麦水旱地亲本回交二代群体10个农艺性状的主成分分析

    Table  2.   Principal components analysis among10 agronomic traits of population of the second backcrossing generation of dryland and irrigated wheat varieties

    项目Item Y1 Y2 Y3 Y4 Y5
    特征值Eigenvalues 3.817 1.645 1.351 0.960 0.778
    贡献率Contribution rate (%) 38.170 16.450 13.510 9.600 7.780
    累计百分率Cumulative contribution rate (%) 38.173 54.626 68.136 77.738 85.514
    株高Plant height (X1) 0.458 0.562 -0.392 0.105 -0.123
    穗长Spike length (X2) 0.668 0.262 -0.060 -0.189 0.221
    穗下节间长Internode length under spike (X3) 0.275 0.353 -0.447 0.592 0.392
    分蘖数Tiller number (X4) 0.837 -0.336 -0.146 -0.277 0.013
    小穗数Spikelet number (X5) 0.480 0.424 0.650 0.024 0.030
    穗粒数Grain number per spike (X6) 0.498 0.384 0.645 0.144 -0.039
    单株生物学产量Biomass per plant (X7) 0.939 -0.233 -0.111 -0.122 0.003
    单株粒重Grain weight per plant (X8) 0.916 -0.338 -0.056 -0.049 0.070
    千粒重1000-grain weight (X9) 0.428 -0.309 -0.007 0.546 -0.606
    经济系数Economic index (X10) -0.028 -0.657 0.344 0.386 0.430
    下载: 导出CSV

    表  3  小麦水旱地亲本回交二代群体优良单株农艺性状综合得分值

    Table  3.   Comprehensive score of agronomic traits of excellent plants in population of the second backcrossing generation of dryland and irrigated wheat varieties

    优良单株序号
    No. of excellent plant
    y1 y2 y3 y4 y5 贡献率
    Contribution rate (%)
    综合得分值
    Comprehensive
    score
    类群
    Group
    1 5.864 -0.410 -1.221 -0.713 -0.642 85.51 2.207
    2 4.398 -1.245 -1.045 2.486 2.238 85.51 2.042
    3 3.706 -1.138 1.948 1.256 1.130 85.51 1.988
    4 5.140 -1.037 -0.798 -0.828 -0.745 85.51 1.808
    5 3.863 0.082 1.341 -0.839 -0.755 85.51 1.788
    6 3.312 -0.374 0.496 1.490 1.341 85.51 1.773
    7 2.506 0.796 1.844 0.696 0.627 85.51 1.699
    8 2.292 1.979 0.361 1.017 0.916 85.51 1.659
    9 1.908 2.981 0.084 0.990 0.892 85.51 1.629
    10 4.260 -1.276 -0.764 -0.136 -0.123 85.51 1.509
    下载: 导出CSV
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出版历程
  • 收稿日期:  2018-04-20
  • 录用日期:  2018-05-03
  • 刊出日期:  2019-04-01

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