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Home > Archive>Volume 19, Issue 5, 2018 >887-894. DOI:10.13430/j.cnki.jpgr.20180209001
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Genetic Diversity Analysis of Major Agronomic Traits in 135 Foreign Quinoa Germplasm Accessions
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1Biotechnology and Germplasm Resources Institute,Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Lab of Agricultural Biotechnology/Key Lab of Southwestern Crop Gene Resources and Germplasm Innovation，Ministry of Agriculture，Kunming 650223;,1Biotechnology and Germplasm Resources Institute,Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Lab of Agricultural Biotechnology/Key Lab of Southwestern Crop Gene Resources and Germplasm Innovation，Ministry of Agriculture，Kunming 650223;,1Biotechnology and Germplasm Resources Institute,Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Lab of Agricultural Biotechnology/Key Lab of Southwestern Crop Gene Resources and Germplasm Innovation，Ministry of Agriculture，Kunming 650223;,1Biotechnology and Germplasm Resources Institute,Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Lab of Agricultural Biotechnology/Key Lab of Southwestern Crop Gene Resources and Germplasm Innovation，Ministry of Agriculture，Kunming 650223;,1Biotechnology and Germplasm Resources Institute,Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Lab of Agricultural Biotechnology/Key Lab of Southwestern Crop Gene Resources and Germplasm Innovation，Ministry of Agriculture，Kunming 650223;,2Institute of Crop Science, Chinese Academy of Agricultural Sciences,Beijing 100081,1Biotechnology and Germplasm Resources Institute,Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Lab of Agricultural Biotechnology/Key Lab of Southwestern Crop Gene Resources and Germplasm Innovation，Ministry of Agriculture，Kunming 650223;

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    Abstract:

    The variation coefficient, genetic diversity index, correlation analysis, principal component analysis and cluster analysis of 15 agronomic traits of 135 quinoa germplasm resources from abroad were carried out in this study. The results showed that the germplasm had abundant genetic diversity. Among the seven quantitative traits, the coefficient of variation from large to small is: Plot yield (57.83%) > grain weight per plant (57.37%) > stem diameter (27.59%) > 1000-grain weight (22.50%) > plant height (21.89%) > main inflorescence length ( 19.38%) > growth period (13.89%); The genetic diversity indices of eight quality traits were as follows: Main inflorescence color(1.44) > seed color (1.43) > stem color (1.38) > seed shape (0.88) > seedling new leaf color( 0.79) > main inflorescence shape( 0.78) > seed lustre (0.63) > cotyledon color (0.08). The principal component analysis results show that, The cumulative contribution rate of the first five principal components reached 66.537%. The first principal component was mainly related to plant type, inflorescence type and growth period; The second principal component was mainly related to plant and inflorescence color; The third principal component is mainly related to yield; The fourth principal component is mainly related to grain size and shape; The fifth principal component was mainly related to seed color. Through evaluation and identification of phenotypic , 31 germplasm with early maturity, short stalk, coarse stem, large grain, Long inflorescence ,good seed setting rate and high yield were selected.

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History
  • Received:February 09,2018
  • Revised:June 21,2018
  • Adopted:May 15,2018
  • Online: July 05,2018
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