Dictionary > Adventitious embryony

Adventitious embryony

Definition
noun
A form of apomixis where a nucellar embryo arises from the diploid nucellus tissue surrounding the embryo sac.
Supplement
Apomixis in flowering plants exists in two forms:

Adventitious or nucellar embryony occurs in some citrus seeds. Male apomixis also occurs in rare cases, such as the Saharan Cypress where the genetic material of the embryo are derived from pollen. It was also observed to occur in some animals such as water fleas.
See also: asexual reproduction, meiosis


You will also like...

river
Running Water Freshwater Communities

This tutorial introduces flowing water communities, which bring new and dithering factors into the equation for possible..

Crossing Over and Genetic Diversity
Inheritance and Probability

Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..

genes controlling growth and development
Control of Growth & Development

Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

Electromagnetic spectrum of a brain
Sleep and Dreams – Neurology

While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

Darwin's Finches - Natural Selection
Darwin and Natural Selection

This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

squirrel
Animal Water Regulation

Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..

Related Articles...

No related articles found

See all Related Topics