Several works using half-sib progenies have been reported in literature.
This population was subsequently submitted to two selection cycles among and within half-sib progenies with remant seeds.
KEY WORDS: abalone, Haliotis diversicolor, heritability, growth, half-sib
discus hannai Ino from 12 half-sib families and 36 full-sib families at 10, 20, and 30 days after fertilization.
g] x h x i, where p is the parentage control (1 for recombination of remnant seeds of the half-sib families), D[P.
Based on genetic component estimates (Table 3), the heritability estimates of the PE trait are in line with results obtained by Sawazaki (1996), which ranged from 60 to 90% in popcorn half-sib families.
Most quantitative trait loci (QTL) studies have been performed using experimental crosses between different breeds or commercial populations comprising large paternal half-sib families (Kim and Farnir, 2006; Kim et al.
Data were obtained from the Hanwoo Improvement Center, National Agricultural Cooperation Federation, Korea, and comprised 229 steers that were born at Namwon or Daegwanryong livestock testing station from 16 paternal half-sib proven sires between spring of 2002 and fall of 2003.
Turning to the genetic correlations among traits and first examining correlations estimated using paternal half-sib family means, if (taking into account that these correlations use only six data points) we accept a liberal P value of <0.
Full-sib family means correlations produce, as expected, more significant results, but in all cases where the full-sib family means correlation is significant the signs of the full and half-sib correlations agree.
Also, the complementary information that is exploited in the line-cross, half-sib and combined models can be used to obtain greater power to detect QTL and allows characterization of detected QTL in terms of their segregation within the parental breeds.
Combined line-cross and half-sib QTL analysis of crosses between outbred lines.
Demonstration of heritability is best done with comparisons of half-sib
groups because they are less likely to be affected by environmental influence (Gjedrem 1992).
1997) and half-sib
correlation analysis for Mercenaria mercenaria (Rawson and Hilbish 1990), Macrobrachium rosenbergii (Malecha et al.