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

Pedigree charts, i need help with to do a pedigree charts.

i need help with to do a pedigree charts.

Instrument for measurement of absorbed radiation-colorimeter, Define Instru...

Define Instrument for measurement of absorbed radiation-Colorimeter? The simplest types of, photometric instruments are designed for measurements in the visible region of spect

What happens within the cell in the third interface period, What are the ev...

What are the events that mark the beginning and the end of the third interphase period? What happens in the cell in this period? The third interphase period is the G2. It star

Edema, Ed e m a It refers to excessive accumulation of fluid in tiss...

Ed e m a It refers to excessive accumulation of fluid in tissue spaces caused by disturbance in the fluid interchange between capillaries, tissue spaces and lymphatic vessel

Hydropower, Energy from water or hydropower            Hydroelectrici...

Energy from water or hydropower            Hydroelectricity is the energy produce from the kinetic energy of water falling from height. Approximately 25% of world electricity

Cleavage, what are the chemical changes takes place during cleavage

what are the chemical changes takes place during cleavage

Division phase or mitosis, DIVISION PHASE OR MITOSIS (M- PHASE) Cell di...

DIVISION PHASE OR MITOSIS (M- PHASE) Cell division was first  observed by  Naegeli 1842 in plant cells ,but  thoroughly described by Eduard strasburger  1875. Fleming 1879 desc

Feeding mechanism in holozoic organism, write short note on feeding mechani...

write short note on feeding mechanism in holozoic organism

What is the main risk factor for skin cancer, Q. What is the main risk fact...

Q. What is the main risk factor for skin cancer? The major risk factor for skin cancer is solar exposition of the skin without protection against ultraviolet radiation (a poten

Define exocytosis , A cell frequently wants to secrete larger molecule...

A cell frequently wants to secrete larger molecules than can be accommodated through the transport systems dealt with in Topic E3. Exocytoses get to the movement of proteins out of

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