in G2 was calculated as the difference between G2 means and parent populations of G1 means.
is often realized in terms of genetic distance, the distinct gene pools of maintainers and restorers can hasten hybrid rice breeding.
In addition, evidence for a heterosis
threshold has been published (Sanford & Hanneman, 1982).
In the case of any degree of dominance greater than zero, heterosis
is due to differences in allele frequency between the parents (FALCONER; MACKAY, 1996).
Genetic basis of heterosis
for yield in autotetraploid potato.
KEY WORDS: Placopecten magellanicus, crossbreeding, combining ability, heterosis
, growth, survival
Therefore, it can be expected that the crossing of Nosrat and Reyhan cultivars leads to the production of products with high values of the traits seed yield, biologic yield, and hybrid awn length, since the combination of these cultivars lead to higher degree of heterosis
Genetics divergence in tomatoes and its relationship with heterosis
Crossbreeding of S x P and P x S, S x F, and F x S resulted in highly significant effects of heterosis
on egg number (9.
Four factors have been found to produce heterozygosity excess: small populations, heterosis
, assortative mating and asexual reproduction (Balloux et al.
This is clearly different from the usually positive heterosis
observed in intraspecific hybrids (Cruz & Ibarra 1997, Zheng et al.
Direct, maternal and heterosis
effects for slaughter and carcass characteristics in three breeds of fat tailed sheep.
ij'] are the effects of the interaction environment x inbred lines, and h is the mean heterosis
effect; hi is the effect of the environment x mean heterosis
These breeds have been crossed with indigenous pig breeds including Taoyuan pig and Lanyu pig to obtain heterosis
Genetic structure, outcrossing rate and heterosis
in Astrocaryum mexicanum (tropical palm): Implication for evolution and conservation.