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Molecular diversity, population structure analysis, and assessment of parent hybrid relationships in fodder maize
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Molecular diversity, population structure analysis, and assessment of parent hybrid relationships in fodder maize
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Journal Article
Molecular diversity, population structure analysis, and assessment of parent hybrid relationships in fodder maize
2024
Overview
Maize is considered one of the most important cereal fodder crops. Many studies on morphological diversity in fodder maize have been helpful in obtaining good heterotic hybrids. The current study focused on analysing diversity of 28 fodder maize inbreds with 30 SSR markers, which revealed total of 110 alleles; and their polymorphic information content (PIC) values ranged from 0.064 to 0.745. Population structure analysis revealed four subpopulation groups with the ΔK value of 132.70. Clustering based on the pairwise dissimilarity coefficient grouped the genotypes into two major and four sub-clusters. The high dissimilarity (0.777) observed between DM 84 and UMI 1221 indicated that these two were highly divergent. Principal coordinate analysis also showed diverse nature of inbreds and corroborated the clustering pattern. Parental diversity and their heterosis performance revealed that parents with average or narrow divergence could be useful in obtaining hybrids with medium/early flowering and moderate/high crude protein content.
Publisher
Crop Breeding and Applied Biotechnology,Brazilian Society of Plant Breeding
Subject
