Heterosis - Wikipedia
Heterosis, hybrid vigor, or outbreeding enhancement is the improved or increased function of any biological quality in a hybrid offspring. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of its parents.
Hybrid Vigor: Definition, Causes, Effects And Examples - Science …
2023年10月19日 · Hybrid vigor is the increase in certain characteristics like growth rate, size, fertility, yield etc. of a particular hybrid organism over its parents. Hybrid vigor is also known by some other names, including heterosis and inbreeding enhancement.
Heterosis | Hybrid Vigor, Hybridization & Inbreeding | Britannica
Heterosis, the increase in such characteristics as size, growth rate, fertility, and yield of a hybrid organism over those of its parents. Plant and animal breeders exploit heterosis by mating two different pure-bred lines that have certain desirable traits.
Heterosis or Hybrid Vigour: Types, Causes and Effects - Biology …
It is generally agreed that hybrid vigour describes only superiority of the hybrid over the parents while heterosis describes the other situation as well i.e., crossing over may result in weak hybrids e.g., many hybrids in tomato are earlier (vegetative phase is replaced by reproductive phase).
Unraveling the genetic basis of hybrid vigor - PMC - PubMed …
Hybrid vigor, or heterosis, is the increase in stature, biomass, and fertility that characterizes the progeny of crosses between diverse parents such that the F 1 is superior to the better of the two parents.
Heterosis in plants: Current Biology - Cell Press
2018年9月24日 · Heterosis, also known as ‘hybrid vigor’, is a well-known phenomenon whereby hybrid offspring resulting from cross pollination exhibit greater vigor than either parent. Here, Hochholdinger and Baldauf provide an overview of this fascinating biological phenomenon and what is known about the underlying genetics and mechanisms.
Hybrid Vigor: Importance of Epigenetic Processes and Consequences for ...
2018年1月1日 · In this chapter, we will discuss the most recent findings suggesting that epigenetic regulation may play important roles in hybrid vigor. 1. Introduction. Hybrid vigor or heterosis is a phenomenon where F 1 hybrids have superior performance relative to their parental inbred lines.
Heterosis - an overview | ScienceDirect Topics
Heterosis or hybrid vigor, first introduced by George Shull, is described as a phenomenon in which a hybrid progeny or F1 phenotype is superior when compared to any of its parental inbred lines. The term heterosis in general includes somatic hybrids and heterozygotes.
Genomic and epigenetic insights into the molecular bases of heterosis
2013年6月11日 · Heterosis, also known as hybrid vigour, is widespread in plants and animals, but the molecular bases for this phenomenon remain elusive. Recent studies in hybrids and allopolyploids using...
Heterosis: The genetic basis of hybrid vigour | Nature Plants
2015年3月3日 · Heterosis, or ‘hybrid vigour’ as it is commonly known, is the superior performance of hybrid organisms compared with either of their parents. It has been exploited in the production of various...
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