Dictionary » A » 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


Please contribute to this project, if you have more information about this term feel free to edit this page



This page was last modified 10:07, 6 March 2009. This page has been accessed 2,257 times. 
What links here | Related changes | Permanent link