%A Yuan LU,Wei-Da AI,Qing HAN,Yi-Fa WANG,Hong-Yang LI,Yu-Ji QU,Biao SHI,Xue-Fang SHEN %T Genetic diversity and population structure analysis by SSR markers in waxy maize %0 Journal Article %D 2019 %J Acta Agronomica Sinica %R 10.3724/SP.J.1006.2019.83008 %P 214-224 %V 45 %N 2 %U {https://zwxb.chinacrops.org/CN/abstract/article_6626.shtml} %8 2019-02-12 %X

To understand the genetic basis of waxy maize (Zea mays L. var. ceratina Kulesh), 87 waxy maize inbred lines were screened by 29 pairs of SSR markers for genetic diversity analysis. Totally, 180 alleles were detected in this population, with an average of 6 alleles per locus. Polymorphic information content (PIC) ranged from 0.308 to 0.915, with an average of 0.572. The genetic similarity between materials ranged from 0.49 to 0.93 with an average of 0.66. Based on the UPGMA (unweighted pair-group method with arithmetic means) cluster analysis, divided 87 waxy maize inbred lines into four groups with genetic similarity of 0.64, including 9, 66, 10, and 2 materials. In addition, 87 waxy maize inbred lines were also divided into four genetic subpopulations, including 24, 25, 19, and 19 materials, by the population genetic structure analysis. Further study showed that genetic variation among most of waxy maize inbred lines in this population was relatively simple. This study provides a germplasm base and theoretical basis for new variety breeding and evolutionary genetics analysis of waxy maize.