[ UK /hˈɛtɹə‍ʊsˌiz/ ]
[ US /ˌhɛtɝˈoʊsəs/ ]
  1. (genetics) the tendency of a crossbred organism to have qualities superior to those of either parent
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How To Use heterosis In A Sentence

  • The fundamental genetic and physiological causes of heterosis remain poorly understood in plants after nearly a century of exploitation in crop improvement.
  • Genetic background, heterosis, and sex differences can all have profound effects on chiasma and recombination frequencies.
  • But considering the role overdominance is supposed to have in connection with generation of heterosis the results suggest that the allele interaction concept and the associated sign motifs may contribute to a better understanding of the heterosis phenomenon. PLoS ONE Alerts: New Articles
  • '' outcrossing '', or '' outbreeding '' genetic elements and can result in heterosis. Citizendium, the Citizens' Compendium - Recent changes [en]
  • The heredity for all parental characters and the utilization of the parent in heterosis breeding were analysed on the basis of the value of GCA effects and variance of SCA effects.
  • Dominant genic male sterility ( DGMS ) is an important way to utilize the heterosis of Brassica napus.
  • The fixation of deleterious mutations may be a general explanation for heterosis in crosses between ecotypes, despite alternative overdominance interpretations.
  • If modulation of the GA level is the underlying basis of heterosis, then the d1 / d1 hybrids should experience little or no heterotic response relative to d1 / d1 inbreds.
  • There was sure nucleo-cytoplasmic heterosis between Ae. squarrosa L. cytoplasm and wheat cell nucleus.
  • With overdominance, unlike alleles are postulated to result in a stimulating effect, so that genetic heterozygosity per se produces heterosis.
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