Heterosis, hybrid vigor , or outbreeding enhancement, is the improved or increased function of any biological quality in a hybrid offspring. The adjective derived from heterosis is heterotic. An offspring exhibits heterosis if its traits are enhanced as a result of mixing the genetic contributions of its parents.
The technical term in genetics is heterosis. Inbreeding in a normal population leads to the offspring getting worse, less fit, less fertile and usually not living as long as the parents. The opposite, outbreeding, leads to fit, healthy, fertile .
English dictionary definition of hybrid vigor. Increased vigor or other superior qualities arising from the crossbreeding of genetically different plants or animals. Long time Mon Valley musicians reunite to form super- group.
Hybrid Vigor , Monongahela, Pennsylvania. The arguments usually center on some discussion about purebred and mixed breed dogs, and the position supported is that purebred dogs are just as healthy as mixed breed dogs. The study of hybrid vigor and inbreeding depression traces back to Charles Darwin, who was the first scientist to examine the phenomenon in a systematic manner (1). Heterosis, also called hybrid vigour , 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. The first-generation offspring generally show, .
The increased vigor or general health, resistance to disease, and other superior qualities that are often manifested in hybrid organisms, especially plants and animals. Compare inbreeding depression. A property of some hybrids that are more likely to outperform either purebred parent in surviving. Plant scientists have provided a new solution to an old debate on why species hybrids can be more vigorous than their parents. Define hybrid vigor : heterosis.
The researchers found a type of genetic noise caused by a surprising degree of variation in gene activity even for highly similar traits in closely related species. I agree that fashions wash over the industry and currently hybrids are in vogue. The reason that we have set up a hybrid business is that we find the tools side of the business is intricately enmeshed with our discovery business.
Today, maize is the largest production crop in the world. Directed by Brandon Fowler. With Velta Buka, Ticiana Mago, Kristine Drinke, Vera Alohno. Crossbreeding has long been touted as the only free lunch in the cattle business. But the “something for nothing” benefit of a planned crossbreeding system goes beyond just hybrid vigor.
Darwin and Mendel, reported hybrid vigor in plant crosses. Veterinarians are rethinking the widely held belief that mixed breeds are hardier than purebred dogs in the wake of new research that shows both are equally susceptible to a variety of genetic disorders. The study — one of the first of its kind in terms of breadth — shakes the notion that mixing breeds is a . Yet a funny thing happened on the way to the demise of the plug-in car.