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

What are holandric genes, What are holandric genes? Holandric genes are...

What are holandric genes? Holandric genes are genes situated in the nonhomologous region of the Y chromosome. Holandric genes condition phenotypes that emerge only in men as in

Which term explains to pituitary gland, In studies of human body, which of ...

In studies of human body, which of the subsequent terms can also be used when referring to the pituitary gland? Is it: a) Pancreas b) Hypozthesis (pron: hypo-fi-sis) c) T

Will sedantary lifestyle increased risk for cad, Q. Will Sedantary Lifestyl...

Q. Will Sedantary Lifestyle increased risk for CAD? A sedantary life style is associated with increased risk for CAD. Sedentary persons have almost double the risk for CAD deat

Define limitations for standard or total plate counts method, Define Limita...

Define Limitations for Standard or Total Plate Counts Method? This method has certain limitations - 1. Microbial count depends on the type of media, incubation temperature,

Why is water conservation in c3 c4 and cam plants important, Why is water c...

Why is water conservation in c3 c4 and cam plants important? Cam stands for Crassulacean acid metabolism. C3 and C4 conserve less water than Cam plants. Actually, C4 plan

Applications of computers in medical and nursing, Applications of Computers...

Applications of Computers in Medical and Nursing Establishment As computers are heavily used for storing and retrieving data the application can be administrative, clinica

Of which substances is chromatin made, Of which substances is chromatin mad...

Of which substances is chromatin made? Chromatin is made of DNA molecules associated to proteins known as histones. Cell Nucleus Review - Image Diversity: chromatin

Explain the resorbable barriers - root perforation, Explain the Resorbable ...

Explain the Resorbable Barriers - Root Perforation It is successfully control internal bleeding through cronal access It is intended to forced in the bone, not left wi

Explain about the reproduction in fungi, Explain about the Reproduction in ...

Explain about the Reproduction in Fungi? Fungi, we have seen above, reproduce both sexually and asexually. Asexual mode of reproduction include budding, binary fission and more

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