Herdabilidade em nível de média de família
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| Format: | Artículo científico |
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Universidade Federal de Viçosa
2002
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| author | José Marcelo Viana Soriano |
| author_facet | José Marcelo Viana Soriano |
| contents | Herdabilidade em nível de média de família José Marcelo Viana Soriano Agrociencias selection plant breeding Quantitative genetics Based on a polygenic system of a diploid species, without epistasis, and a population in Hardy-Weinberg equilibrium, without inbreeding and under linkage equilibrium, it can be shown that: (1) the narrowsense heritability at half-sib family level is equal to the square of the correlation coefficient between family meanand the additive genetic value of its common parent; (2) the narrow sense heritability at full-sib family level isequal to the square of the correlation coefficient between family mean and the mean of the additive genetic valuesof its parents; (3) the narrow sense heritability at Sn family level is exactly equal to the square of the correlationcoefficient between family mean and the additive genetic value of its parent only in absence of dominance or whenallele frequencies are equal; and (4) the broad sense heritability at full-sib or Sn family level can be used to analyzeselection efficiency, since the progeny genotypic mean is, in general, a good indicator of parents, or Sn-1 plantsuperiority with respect to the frequency of favorable genes. 2002 artículo científico 0100-6762 https://www.redalyc.org/articulo.oa?id=48826302 pt http://www.redalyc.org/revista.oa?id=488 Revista Árvore application/pdf Universidade Federal de Viçosa Revista Árvore (Brasil) Num.3 Vol.26 |
| format | Artículo científico |
| id | redalyc_48826302 |
| institution | Redalyc |
| language | pt |
| publishDate | 2002 |
| publisher | Universidade Federal de Viçosa |
| spellingShingle | Herdabilidade em nível de média de família José Marcelo Viana Soriano Agrociencias selection plant breeding Quantitative genetics Herdabilidade em nível de média de família José Marcelo Viana Soriano Agrociencias selection plant breeding Quantitative genetics Based on a polygenic system of a diploid species, without epistasis, and a population in Hardy-Weinberg equilibrium, without inbreeding and under linkage equilibrium, it can be shown that: (1) the narrowsense heritability at half-sib family level is equal to the square of the correlation coefficient between family meanand the additive genetic value of its common parent; (2) the narrow sense heritability at full-sib family level isequal to the square of the correlation coefficient between family mean and the mean of the additive genetic valuesof its parents; (3) the narrow sense heritability at Sn family level is exactly equal to the square of the correlationcoefficient between family mean and the additive genetic value of its parent only in absence of dominance or whenallele frequencies are equal; and (4) the broad sense heritability at full-sib or Sn family level can be used to analyzeselection efficiency, since the progeny genotypic mean is, in general, a good indicator of parents, or Sn-1 plantsuperiority with respect to the frequency of favorable genes. 2002 artículo científico 0100-6762 https://www.redalyc.org/articulo.oa?id=48826302 pt http://www.redalyc.org/revista.oa?id=488 Revista Árvore application/pdf Universidade Federal de Viçosa Revista Árvore (Brasil) Num.3 Vol.26 |
| title | Herdabilidade em nível de média de família |
| topic | Agrociencias selection plant breeding Quantitative genetics |
| url | https://www.redalyc.org/articulo.oa?id=48826302 |