Haploid production, Biology

Assignment Help:

Haploid Production

The higher plants are normally diploid, with two sets of chromosomes in their somatic cells. Their haploids (with one set of chromosomes) arise in nature by parthenogenesis due to malfunction in the normal sexual process. However, such events are extremely rare and unpredictable. In 1964, two Indian scientists, Guha and Maheswari, observed that in cultured anthers of Datura innoxia some of the microspores, instead of following the normal gametophytic mode of development, formed sporophytes (Androgenic plants).

As expected, those sporophytes were haploid. This report caused much excitement because of the considerable importance of haploids in genetics and plant breeding. To-date androgenic haploids of over 200 species, including many major crop plants (Cereals, Brassica spp, tomato and potato), have been raised through anther and/or isolated pollen culture.


Related Discussions:- Haploid production

How does the amoeboid movement occur, How does the amoeboid movement occur?...

How does the amoeboid movement occur? What are examples of beings and cells that use such movements for locomotion? Amoeboid movements are formed by cytoplasmic movements and p

Nervous system, Nervou s System It is controling system of body. ...

Nervou s System It is controling system of body. Ectodermal in origin. This system is made up of nervous tissue. Nervous tissue is made up of neuron & neuroglial

Regulation of fatty acid, The main point of control of β-oxidation is the a...

The main point of control of β-oxidation is the availability of fatty acids.  The major  source   of  free  fatty   acids   in  the  blood   is  from   the  breakdown   of triacylg

Bovine spongiform encephalopathy (bse), Normal 0 false fal...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Blastula, Blastula is the ball of cells surrounding a fluid-filled cavity ...

Blastula is the ball of cells surrounding a fluid-filled cavity (known as blastocoel) which is produced by the cleavage of a zygote.

What is the meaning of obesity, What is the meaning of Obesity? Obesity...

What is the meaning of Obesity? Obesity is a condition resulting from accumulation of excess body fat. The fat deposition takes place because over a period of time, people cons

Determine in brief about the classic migraine, Determine in brief about the...

Determine in brief about the Classic migraine This is probably the most interesting form, occurring in about 12% of migraine sufferers, because it begins with an aura, which us

Respiration, different types of animals and their respiratory organ

different types of animals and their respiratory organ

Anaerobic energy, how is the anaerobic energy system not entirely anaerobic...

how is the anaerobic energy system not entirely anaerobic?

Explain about battery, Explain about Battery Battery:  Two electrodes ...

Explain about Battery Battery:  Two electrodes (zinc and carbon) placed in electrolyte (dilute sulfuric acid).  Chemical reactions in electrolyte force positive charges to

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