Analysis of Flower Character Variation of Medicago ruthenica in Inner Mongolia
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    Abstract:

    Genetic mutations of 49 M.ruthenica wild gemplasm from 7 Different Origin in Inner Mongolia. 12 floral properties, including calyx diameter, coronary length, number of inflorescence flowers have been studied and investigated with morphological marcers.The results showed that M. ruthenica between material the magnitude of the coefficient of variation was the largest flower traits for inflorescence length, the variation coefficient of 79.12%, The variation of the smallest for the calyx diameter, the coefficient of variation was 3.82%. Principal component analysis showed that floral traits in the first 7 principal components reflect the total information content 85.465%, inflorescence length, inflorescence axis length, Corolla length, Inflorescence podding number, Inflorescence seeds, flower color and Little flower shank length of 7 characters is the main factor causing variation in traits of M. ruthenica. The correlation analysis showed that:More flower traits were highly significantly and extreme significantly related, For example,inflorescence podding number and Inflorescence seeds had extremely significant difference, 0.811, had a significant positive correlation, while significant inflorescence axis length and Little flower shank length showed a significant negative correlation, -0.340. The 49 materials are divided into 6 kinds of cluster analysis. Flower character same source or geographical variability with similar material part can get together.Floral traits in M. ruthenica materials have abundant genetic diversity.

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History
  • Received:November 06,2014
  • Revised:May 27,2015
  • Adopted:September 21,2015
  • Online: November 04,2015
  • Published:
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