tailieunhanh - Molecular diversity studies in cotton (Gossypium hirsutum L.) using SSR markers

The present investigation was to study the molecular diversity of twelve cotton genotypes, in order to select the suitable divergent parent for heterosis breeding. Totally, 55 primers were used to diversify these genotypes and 40 pairs showed clear, scorable and unambiguous bands. Out of 40, 25 primer pairs ( %) were found to be polymorphic and 15 found to be monomorphic. The average number of alleles per locus was . The similarity coefficient ranged from to with high dissimilarity coefficient of for the genotypes TCH 1777 with MCU 13 and TSH 0499 with SVPR 4. A high similarity coefficient of was observed among the parents BGDS 1063 with ARBC 19 and TSH 0499 with TSH 1819. The results of cluster analysis grouped twelve genotypes into seven clusters. The largest cluster was cluster A, which had four genotypes and cluster B had two genotypes. The cluster C, D, E, F and G had one genotype type each. Hence, selecting the genotypes for hybridization from different and distant clusters will paves the way to create variability and could be utilized in varietal or hybrid development programme. | Molecular diversity studies in cotton (Gossypium hirsutum L.) using SSR markers

• Sinh học
• Molecular diversity
• SSR markers
• Gossypium hirsutum L
• Using SSR markers
• Molecular diversity studies
• Genetic diversity
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