Relationship among Heterosis, Combining Ability and SSR Based Genetic Distance in Single Cross Hybrids of Maize (Zea Mays L)

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Combining ability and heterosis for different morphological and quality traits were studied under three environments using 10 inbred lines, 45 single cross hybrids and three commercial hybrids as checks at SHIATS, Allahabad, India during monsoon, 2014. Ten simple sequence markers (SSR) were used to quantify genetic distance  which was further used to analyse relationship with combining ability and heterosis in single cross hybrids. Pearson’s correlation and linear regression were analysed to identify the important factors determining heterosis and per se performance of hybrids. Variances due to general combining ability (GCA) and specific combining ability (SCA) were found to be significant for all but their interaction with environments were significant only ..Read more  morphological traits. SSR marker bnlg 1523 was found as a potential marker for discriminating maize inbred lines at molecular level as it has high PIC (0.71) and gene diversity (0.74). Significant positive association were recorded Read more



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