Search results
Results from the WOW.Com Content Network
Inbreeding is also used to reveal deleterious recessive alleles, which can then be eliminated through assortative breeding or through culling. In plant breeding, inbred lines are used as stocks for the creation of hybrid lines to make use of the effects of heterosis. Inbreeding in plants also occurs naturally in the form of self-pollination.
Plant breeding can be performed using many different techniques, ranging from the selection of the most desirable plants for propagation, to methods that make use of knowledge of genetics and chromosomes, to more complex molecular techniques. Genes in a plant are what determine what type of qualitative or quantitative traits it will have.
Their model predicted that most plants would either be outcrossing or selfing. [12] The observation of large numbers of species with mixed mating contradicted this idea, and motivated others to develop models to explain the prevalence of mixed mating systems including ideas such as selective interference and pollen discounting.
Production of some products is highly concentrated in a few countries, China, the leading producer of wheat and ramie in 2013, produces 95% of the world's ramie fiber but only 17% of the world's wheat. Products with more evenly distributed production see more frequent changes in the ranking of the top producers.
Thus outbred strains of most laboratory animals are also available, where an outbred strain is a strain of an organism that is effectively wildtype in nature, where there is as little inbreeding as possible. [2] Certain plants including the genetic model organism Arabidopsis thaliana naturally self-pollinate, which makes it quite easy to create ...
Plant species where normal mode of seed set is through a high degree of cross-pollination have characteristic reproductive features and population structure. Existence of self-sterility, [1] self-incompatibility, imperfect flowers, and mechanical obstructions make the plant dependent upon foreign pollen for normal seed set. Each plant receives ...
Inbreeding can be referred to as homogamy. [1] Homogamy refers to the maturation of male and female reproductive organs (of plants) at the same time, which is also known as simultaneous or synchronous hermaphrodism and is the antonym of dichogamy. Many flowers appear to be homogamous but some of these may not be strictly functionally homogamous ...
Entrance of De Wildt Cheetah and Wildlife Centre in South Africa.Breeding programs play a role in the conservation and preservation of the cheetah and the African wild dog. A breeding program is the planned breeding of a group of animals or plants, usually involving at least several individuals and extending over several generations.