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| Heterotic grouping of exotic maize inbred lines by SSR markers and elite maize inbred lines |
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| Abstract: |
| It is significant for improving the efficiency and predictability of maize breeding to study heterotic
grouping of maize. In this study，40 simple sequence repeat（SSR）primers and 6 elite maize inbred lines were used to
detect genetic variation and heterotic grouping among 49 exotic inbred lines. A total of 242 alleles was detected with a
range between 4 to 11 and an average of 6.05 alleles per locus. The PIC and gene diversity showed the similar trend，
varied from 0.3224（phi072）to 0.8397（bnlg2235）and 0.3640（phi072）-0.8538（bnlg2235），the averages were
0.6347 and 0.6767. Inbred lines were clustered into 4 groups referring to the pedigree of leading self lines，including
Tangsipingtou，Reid，Improved Reid and Lancaster group. |
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