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

Explain about the protein isolates, Explain about the Protein Isolates? ...

Explain about the Protein Isolates? Before we begin our discussion on protein isolates, let us first get to know how protein concentrates differ from isolates. Basically, the t

Determine the amount of glucose in the blood, During a routine annual physi...

During a routine annual physical,a patient was checked to determine the amount of glucose in the blood.After the assay,It was found that the glucose that the glucose concentration

Explain somatic cell, For a somatic cell with 2n = 4, which of the followin...

For a somatic cell with 2n = 4, which of the following is true? (Note: G1- growth phase 1, G2 - growth phase 2, M - metaphase, P - prophase and T - telophase) a.  (Number of

Describe the use of sorbates acid in microorganisms, Q. Describe the use of...

Q. Describe the use of Sorbates acid in Microorganisms? Sorbic acid is an unsaturated carboxylic acid whose salts as sodium, calcium or potassium are used in foods upto

What is gastrulation, Q. What is gastrulation? How during gastrulation are ...

Q. What is gastrulation? How during gastrulation are the first two germ layers formed? What are these germ layers? Gastrulation is the process through which a portion of the bl

Biological conservation, what are the significance of zoological parks in c...

what are the significance of zoological parks in conversation

Blood groups, BLOO D GROUPS- In R.B.C. on plasmalemma antigen or agglu...

BLOO D GROUPS- In R.B.C. on plasmalemma antigen or agglutinogen present form antibodies or agglutinines. Blood groups are based on antigens. 1 .      ABO SYSTEM -

Forebrain - cerebrum, CEREBRU M - Largest part of brain. 2/3 of bra...

CEREBRU M - Largest part of brain. 2/3 of brain. 4/5 of brain's weight. Cerebrum is devided into 2 cerebral hemispheres by longitudinal cerebral fissure. Gyri and sul

What are pure culture techniques, What are Pure Culture Techniques? Mic...

What are Pure Culture Techniques? Microorganisms can be isolated from various natural environments like soil, food, water, sewage, decomposing matter and even from infectious m

What is the group of aquatic beings of photosynthetic beings, What is the g...

What is the group of aquatic beings composed of a large number of photosynthetic beings? A huge number of photosynthetic beings are found in the plankton that is in the surface

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