Analysis of Genetic and Quality Traits of Waxy Corn Germplasms
The SSR markers were used to study the genetic variation of 50 waxy maize inbred lines ,and 18 pairs of primers were selected from 40 pairs of primers .A total of 87 polymorphic bands ,variation of 3~7 alleles for each primer ,and an average of 4.83 alleles per primer were detected ;polymorphic infor-mation content of each pair of SSR primers ranged from 0.211 to 0.759 averaged 0.584 .Using clustering analysis in UPGMA ,the waxy corn inbred lines were classified into 4 groups ,which was basically the same as germplasmic genealogy .The contents of protein ,starch ,moisture ,fat and free amino acids in the grain of waxy maize inbred lines were determined .The results showed that grain nutrient content of each waxy maize was not identical ,free amino acid variation coefficient was the maximum and that of the starch was the minimum ,indicating that the inbred lines were of rich genetic diversity .Based on the data of the quality traits in the 50 inbred lines ,adopting the squared Euclidean distance cluster analysis ,the 50 waxy maize inbred lines were divided into 2 groups ,4 subgroups ,and the there were significant differ-ences among the groups .
国家科技期刊平台
NSTL
万方数据
