帚高粱的遗传多样性及其在种质创新中的应用
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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;,1黑龙江省农业科学院作物育种研究所,哈尔滨 150086;,1黑龙江省农业科学院作物育种研究所,哈尔滨 150086;,1黑龙江省农业科学院作物育种研究所,哈尔滨 150086;,1黑龙江省农业科学院作物育种研究所,哈尔滨 150086;,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佳木斯分院,佳木斯 154007

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国家国际科技合作项目(2011DFR30840-10);哈尔滨市国际科技合作项目(2016AE6AE001);国家谷子高粱产业技术体系(CARS-06-13.5-A1)


Genetic Diversity of Broomcorn Sorghum and Its Utilization on Germplasm Improvement
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1Crop Breeding Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086;,1Crop Breeding Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086;,1Crop Breeding Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086;,1Crop Breeding Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086;,1Crop Breeding Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086;,1Crop Breeding Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086;,2Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi 154007

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    摘要:

    对173份不同来源的帚高粱种质资源及其杂交后代进行了表型性状的遗传多样性分析。结果表明,各来源的帚高粱品种主要在生育期、株高、穗长、糜子数及伸出程度等性状上差异较大。杂交后的育种材料在多个性状上表现优良,与来源于不同国家的品种有很大差异,利用各来源品种特有的优异性状可有效进行帚高粱的品种改良。遗传距离为0.64时将所有品种划分为5个类群。由于来源于各国的帚高粱品种间有一定的相似性,不能按其来源进行类群的明确划分,而改良后的育种材料类群划分比较集中。帚高粱的多个性状间存在显著相关性,在种质创新中要同时进行考虑,应选择生育期适宜、株高较矮、穗较长、糜子数多、穗柄较粗以及脱粒后单穗重、单穗粒重、千粒重均高的性状,但伸出程度和穗柄不宜过长。

    Abstract:

    Genetic diversity of 173 land races and breeding lines of broomcorn sorghum from different origins was analyzed based on agronomical traits. It is indicated that variation of agronomical traits was obvious among land races from different origins mainly on growth duration, plant height, panicle length, number of fibers and panicle exsertion. Breeding lines hybridized from land races had superior characteristic in many agronomical traits compared with that of different origins. Peculiar excellent traits of varieties from different origins could be used effectively in germplasm improvement. All the materials were clustered into 5 groups at the genetic distance of 0.64. Cluster analysis was failed to distinctly group land races according to origins because of their partly similar traits. Meanwhile, breeding lines were grouped comparatively concentrated. Multiple traits should be taken into account simultaneously in germplasm improvement because of their significant correlation. Agronomical traits should be selected as appropriate growth duration, lower plant height, longer panicle length, more fiber numbers, thicker peduncle diameter, high threshed panicle weight, high panicle weight and high 1000-grain weight, but panicle exsertion and peduncle should not be too long.

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王黎明,焦少杰,姜艳喜,等.帚高粱的遗传多样性及其在种质创新中的应用[J].植物遗传资源学报,2018,19(6):1083-1091.

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  • 收稿日期:2018-03-14
  • 最后修改日期:2018-07-06
  • 录用日期:2018-05-13
  • 在线发布日期: 2018-11-14
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