Dictionary > Euploidy

Euploidy

Definition
noun
(genetics) The chromosomal variation in the normal complete set of chromosomes in a cell or an organism resulting in a multiple of the haploid or basic number of chromosomes
Supplement
Euploidy is a chromosomal variation that involves the entire set of chromosomes in a cell or an organism. Euploidy is more tolerated in plants than in animals. There may be a single set (monoploidy), two sets (diploidy), or multiple sets (polyploidy, i.e. triploid, tetraploid, pentaploid, hexaploid, etc.) of chromosomes. Other types of euploidy are autopolyploidy and allopolyploidy. In autopolyploidy, there is an additional set of chromosomes, which may be from a parent or identical parental species (i.e. a single taxon). The cell or organisms in autopolyploid condition is called an autopolyploid. Natural autopolyploids are Tolmiea menzisii (piggyback plant) and Acipenser transmontanum (white sturgeon). In allopolyploidy, the additional set of chromosomes comes from another species (i.e. from two or more diverged taxa). The cell or the organism in allopolyploidy state is referred to as allopolyploid. Wheat is an example of an allopolyploid with six chromosome sets.
See also:

Related form(s):

  • euploid (adjective, of, relating to, or showing characteristic of, euploidy; noun, a cell or an organism in euploidy condition)


    You will also like...

    Growth and Plant Hormones
    Growth and Plant Hormones

    Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..

    Ecosystem Succession
    Ecosystem Succession

    If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..

    Control of body movement
    Control of Body Movement

    Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..

    Wart-like leaf galls on grape leaves
    Plant Cell Defense

    Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..

    Chemical effects on plant growth and development
    Effect of Chemicals on Growth & Development in Organisms

    Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..

    Evolution of Life - Ancient Earth
    Evolution of Life – Ancient Earth

    Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..