broad-sense heritability


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Related to broad-sense heritability: selection differential

broad-sense heritability

the widest estimate of the role of genes in influencing total phenotypic variability (see HERITABILITY), measured by the ratio of total genotypic variance to total phenotypic variance. Compare NARROW-SENSE HERITABILITY.
References in periodicals archive ?
Overall mean, upper and inferior limit, phenotypic variance ([[sigma].sup.2.sub.f]) environmental variance ([[sigma].sup.2]) coefficient of variation (CVe), broad-sense heritability ([H.sup.2.sub.g]), broad-sense heritability, adjusted for line and column effects ([H.sup.2.sub.adj]) for 11 morpho-agronomic variables and disease response in papaya.
Ehlers, "Estimating the Broad-Sense Heritability of Early Growth of Cowpea," International Journal of Plant Genomics, vol.
Broad-sense heritability is the proportion of total phenotypic variation due to all genetic effects.
The broad-sense heritability of the zinc concentrations of Andean common bean seeds had a high magnitude ([h.sup.2]b= 63.36 to 72.22%), and the narrow-sense heritability had an intermediate ([h.sup.2]n= 31.04%; IAC Boreal X Light Red Kidney) to high ([h.sup.2]n= 63.60%; Ouro Branco X Light Red Kidney) magnitude.
When distinguishing among different types of genetic influence, it is possible to calculate broad-sense heritability ([h.sup.2.sub.B]), which encompasses all genetic influences ([a.sup.2] + [d.sup.2] + [i.sup.2]), or narrow-sense heritability ([h.sup.2.sub.N]), which reflects only additive effects ([a.sup.2]).
Bootstrap estimates of broad-sense heritability range from 0.325-1.29 and all the traits we measured have heritabilities that differ significantly from zero (Table 5).
Application of Falconer's method (7) for broad-sense heritability produced a heritability of 0.24.
For these, we estimated the broad-sense heritability ([h.sup.2]b) for Hsp70 expression in these stages as twice the intraclass correlation.
All six life-history variables that we measured exhibited significant variation among genotypes (Table I), with clonal repeatabilities (a form of broad-sense heritability) ranging from 0.20 to 0.75 (Table III).
Estimated broad-sense heritability (hg) varied between 0.47 and 0.77, also indicating predominance of the genetic component on yield expression.