Apomixis, Biology

Apomixis

The formation of sporophyte from the gametophyte without sexual process signifies apomixis. It relates to the replacement of alternation of a reduced gametophyte and an unreduced sporophyte by an unreduced gametophyte and sporophyte. It occurs in relatively in about 35 families. The most common being Asteraceae and Poaceae. Apomixis can be classified into two types, recurrent (in non- reduced embryo sacs) and non-recurrent (in reduced embryo sacs). The later relates to development of haploid embryos without the actual fusion of gametes.

275_Apomixis.png

Figure: Diagrammatic representation of Apomixis types

Posted Date: 1/23/2013 5:54:53 AM | Location : United States







Related Discussions:- Apomixis, Assignment Help, Ask Question on Apomixis, Get Answer, Expert's Help, Apomixis Discussions

Write discussion on Apomixis
Your posts are moderated
Related Questions
POULTRY BREEDING Poultry breeding has acquired pre-eminence over all other domesticated livestock enterprises. Production level of layer and broiler type of chicken touched spe

Phenology of Different Species The phenology of different species present in a community may differ from each other significantly. It is these phenological changes which give

Relation between taxonomy and ecology

Q. Symptoms of celiac disease? The list of symptoms as mentioned in various sources for celiac disease includes: • Digestive symptoms - diarrhoea, abdominal pain, abdominal

The marine biomes consist of the earth's oceans and its associated areas like the shorelines, islands, reefs and estuaries. The marine waters contain about 3.5 percent salt, mostly

A lipoprotein is a biochemical assembly which haves both lipids and proteins, bound to the proteins that allow fats to move by the water outside and inside cells. The proteins serv

Importance of Vitamin c Vitamin C is involved in redox processes in the organisms. It is possible, that vitamin C exerts its physiological function as a redox  substance in com

what is the structure of hiv virus?

What is Mendelian Genetics? Mendelian Genetics :  In 1868, an Austrian monk, Gregor Mendel, first published the basics of a study we now call Mendelian genetics. Mendel obser

Competence of Larval Tissue or Multiple Responses The responsiveness of different larval tissues to thyroxine is markedly different. The tissues of the tail becomes necrotic