Androgenic haploids, Biology

Assignment Help:

Androgenic haploids

Androgenic haploids of some species, such as wheat, mustard and tobacco, can also be raised through isolated microspore pollen culture (Pollen cultures). It must be realized that in spite of serious efforts androgenic haploids have not been possible in many other economically important plants. In-vitro gynogenesis is another approach to produce haploids (Yang and Zhou, 1990). In this technique unfertilized ovules are cultured on media which stimulate the egg (parthenogenesis) or any other haploid cell of the embryo sac (apogamy) to undergo embryogenic development without fertilization. In-vitro gynogenesis, first observed in Hordeum vulgare by San Noeum (1967), has now been reported in at least 16 species. This technique of haploid production is especially useful in plants in which the androgenic response is unsatisfactory, a large proportion of pollen plants are non-haploids or albinos, as in many cereals.

 


Related Discussions:- Androgenic haploids

Protozoa, what are disadvantage of protozoa

what are disadvantage of protozoa

Ecology lab assignment, i need to complete a model on loop analysis Java an...

i need to complete a model on loop analysis Java and answer questions on my assignment sheet....any experts to help me do my lab homework?

Show thw cellular structure of protein synthesis, Q. What is the cellular s...

Q. What is the cellular structure to which mRNA molecules bind to start the protein synthesis? To make proteins mRNA molecules essentially associate to ribosomes. Ribosomes hav

Evolution of man, diffrentiate between javaman and peckingman

diffrentiate between javaman and peckingman

What is left ventricular hypertrophy, What is Left Ventricular Hypertrophy ...

What is Left Ventricular Hypertrophy (LVH) ? LVH develops as the response of the heart to chronic pressure or volume overload and is defined as a left ventricular mass exceedin

Define types of root canal perforations according to size, Define Types of ...

Define Types of Root Canal Perforations According to size According to size: Small perforation: ( smaller than #20 endodontic instrument ) mechanical damage to tissue is

Ventilation of tracheal system – passive suction ventilation, Ventilation o...

Ventilation of Tracheal System – Passive Suction Ventilation Many active insects and insects that live in environments where water is scarce cannot depend on diffusion alone t

What is the main moral problem about the cloning, What is the main moral pr...

What is the main moral problem about the cloning of human individuals? Besides biological perils, a very serious moral problem includes the nucleus transplantation technology c

Pollen tube growth, Pollen Tube Growth There are significant differen...

Pollen Tube Growth There are significant differences in the fine structure of the tips of pollen tubes in compatible and incompatible pistils such as Lilium. Tubes growing in

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd