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
How does caffeine effect plant growth? Minerals like potassium are often found alongside caffeine when it happens in plant sources like coffee beans, and that could help the pl

Q. What is the organ that releases the female gamete under formation? How is this release triggered? What is the organ that collects the released gametes? The organ that libera

Explain about the Acesulfame K - Artificial Sweeteners? Acesulfame-K (potassium salt of 6-methyl-1, 2, 3-oxathazin-4(3H)-one 2, 2 dioxide) is a sweetener which is commonly used

Define Binding of Protein with Other Compounds? In addition to water, lipids and volatile flavours, food proteins can bind a number of other substances through weak interaction

Dicotyledons (2,00,000 species) The dicot's are of diverse nature. The leaves are net veined, stem contains ring of vascular bundles, cambium tissue is present so secondary

I have been getting assignments to write. But not for the subject I have aptitude for.Please help

Define Vitamins, Minerals and Phytochemicals requirement for cancer patients? Several vitamins particularly those of the B-group are essential to promote adequate metabolism of

Define Effect of Enery on quality and quantity of human milk? Energy: In case of chronic under nutrition, an association between postpartum weight loss and lower energy transfe


The initial evaluation of new onset heart failure should include an electrocardiogram, chest radiograph, and B-type natriuretic peptide assay. The cardiac rhythm may be normal sinu