Genetic diversity analysis using ISSR markers in Black nightshade (Solanum nigrum L. Complex)

Agronomic, Genetic and Quantitative Trait Characterization of Nightshade Accessions

“…In the present study, the highest expected GAM was observed for the largest leaf area, smallest leaf area, fruit fresh mass, number of leaves, number of fruits per plant, leaf dry mass, number of primary branches, fruit yield, leaf chlorophyll content, days to 50% flowering and leaf fresh mass ( Table 4 ), respectively. The authors of [ 14 , 46 , 50 ] reported similar findings of high genetic advance over a mean number of leaves and other related traits. High GAM values indicate that these traits are simply inherited; the heritability is most likely due to additive gene effects and selection may be effective in early generations for these traits [ 30 , 31 , 32 ].…”

“…The heritability for the number of fruits, fruit fresh mass, stem yield, fruit yield and total biomass was low, despite high genetic advance ( Table 4 ). Such traits are more influenced by the environment, making selection ineffective for them as indicated by [ 45 , 46 ]. Furthermore, traits that exhibit high heritability with moderate or low genetic advance can be improved by inter-mating the superior accessions of the segregating population developed from multiple crosses and the desirable genes can be accumulated in the lines as stated by [ 46 , 47 ].…”

“…Such traits are more influenced by the environment, making selection ineffective for them as indicated by [ 45 , 46 ]. Furthermore, traits that exhibit high heritability with moderate or low genetic advance can be improved by inter-mating the superior accessions of the segregating population developed from multiple crosses and the desirable genes can be accumulated in the lines as stated by [ 46 , 47 ]. On the other hand, an association of high heritability with high genetic advance is an indication of additive gene effects and consequently, a high genetic gain from selection would be anticipated [ 14 , 48 ].…”