Plant domestication definition
- Domestication is the process of adapting wild plants and animals for human use. Domestic species are raised for food, work, clothing, medicine, and many other uses. Domesticated plants and animals must be raised and cared for by humans. Domesticated species are not wild.
People also ask
What is the importance of domestication of plants and animals?
How did domestication change the plants?
Which animal did we domesticate first?
What is the importance of domestication?
Jan 21, 2011 · Domestication is the process of adapting wild plants and animals for human use. Domestic species are raised for food, work, clothing, medicine, and many other uses. Domesticated plants and animals must be raised and cared for by humans. Domesticated species are not wild.
Domestication, the process of hereditary reorganization of wild animals and plants into domestic and cultivated forms according to the interests of people. In its strictest sense, it refers to the initial stage of human mastery of wild animals and plants.
Our human ancestors began this process by selecting teosinte (the ancestor of maize) that had bigger kernels, and more rows of kernels. Over time they probably also selected for other useful traits, such as kernels that didnt shatter (fall off from the plant), exposed kernels (lacking the outer protective part of the kernel) and higher-yield. Eventually, a new type was formed - what we know now as maize, or corn (see also Domestication genes).
Because the traits selected for are advantageous to humans but not necessarily advantageous for the plants, these newly developed plants have often lost the ability to survive in the wild without humans. For example, the large kernels of contemporary maize ears are not easily dispersed by wind or birds. If left alone in the wild, they would simply fall to the ground, where they would sprout in a heap, too close together to be able to grow into big healthy plants. And while some plants seeds are dispersed through ingestion by animals (and then expelled with feces), maize kernels are more thoroughly digested such that they are no longer viable when expelled (they have lost the hard seed coat that their ancestor had); thus, they cannot be dispersed in this way.
Some of the traits that have been selected for by humans but which are not healthy for a plant in the wild include:
Since only certain plants are being selected and propagated, domestication tends to decrease the genetic diversity of the cultivated varieties of crops (see Figure below). Because consumers prefer uniformity in the marketplace, they select for low genetic diversity. But low genetic diversity can be detrimental (see later section). Diversity usually remains in the wild relatives of the crop species, however, and can be reintroduced by intentional plant breeding. Domestication is the same process used to breed new types of dogs, cats, livestock, etc.
Definition: Seed dormancy is a condition that prevents seeds from germinating under certain conditions. There are many mechanisms involved and varying conditions necessary to break dormancy. In the wild, dormancy helps ensure the survival of the species by spreading germination out over time (not all the seeds germinate at once), thus at least some seeds are likely to encounter a favorable environment and survive. In domesticated plants this trait has often been bred out because it is more advantageous for a farmer to have all seeds germinate at once, making the crop more manageable.
Nov 13, 2019 · The domestication of plants is one of the first and most crucial steps in the development of a full-fledged, reliable agricultural (Neolithic) economy. To successfully feed a society using plants, the first humans had to continually work to improve their yield in quality and quantity.
The domestication of plants and animals represents a key turning point in human history. This first foray into genetic engineering created new varieties of plants and animals that could be grown around the world – most often at the expense of other species that remained outside a domestic partnership with humans.
/ dəˌmes.tɪˈkeɪ.ʃ ə n / us / dəˌmes.tɪˈkeɪ.ʃ ə n / the process of bringing animals or plants under human control in order to provide food, power, or company: The New York City Department of Health banned the domestication of wild animals such as iguanas.
The evolution of domesticated forms of plants involved the selection of traits that were suited to the human rather than the wild environment. The types of traits that are selected have been similar across different species plants giving rise to the concept of the domestication syndrome.
a : the adaptation of a plant or animal from a wild or natural state (as by selective breeding) to life in close association with humans Wild and feral dogs are hunters, but domestication and differential breeding have modified breed and individual predatory motivation.
- related to: define domestication of plants