Title: Research on Genetic Difference of Maize Mutants by Irradiation Based on Phenotypic and SSR
Abstract: The genetic difference between mutants and corresponding basic materials was studied based on phenotypic characters and SSR markers,in which maize inbred lines R08 and its nine mutants,48-2 and its thirteen mutants were selected as materials.The results showed that different degree variation of days to silking,plant height,plant type,seed color,yield per plant,etc.as the molecular level was detected in mutants.Among them,phenotypic variation of R08 mutants 12,17 and 48-2 mutants 23,27,28,29 and 31 were larger,oppositely,R08 mutants 16 and 48-2 mutants 22,26,33 were relatively smaller.The amplitude of polymorphism information content(PIC) between R08,48-2 and their corresponding mutants were 0.18-0.70 and 0.34-0.83,and the average values of them were 0.46 and 0.61 respectively.The genetic similarity coefficient between R08 and its mutants ranged from 0.474 to 0.842 with an average of 0.712,48-2 and its mutants varied from 0.463 to 0.782 with an average of 0.645.Experiments proved that genetic difference between mutants and basic material was true.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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