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

Define counseling and compliance for celiac disease, Define Counseling and ...

Define Counseling and compliance for celiac disease? If symptoms do not improve, the child's diet should be reviewed and evaluated. A decrease in diarrhoea, increase in height

Can the heat capacity of water be considered small or large, Can the heat c...

Can the heat capacity of water be considered small or large? What is the biological significance of that characteristic? From thermology it is called that the quantity of exch

Syringe, Can you use a regular syringe instead of a gas syringe in a lab

Can you use a regular syringe instead of a gas syringe in a lab

Explain about the glycemia or insulinemia, Explain about the Glycemia or In...

Explain about the Glycemia or Insulinemia? Preliminary research evidence indicates that there may be beneficial effects in terms of decreased fasting blood glucose/hepatic gluc

Describes why okazaki fragments are not observed in pcr, Which of the follo...

Which of the following best describes why Okazaki fragments are not observed in PCR? A. DNA primase is used for the entire reaction therefore eliminating the production of Okaz

Name the enzyme present in saliva, Name the enzyme present in saliva and sa...

Name the enzyme present in saliva and say what type of food it acts on.   The enzyme in saliva is salivary amylase and it acts on starch.

Describe about congenital cardiac conditions encountered, Describe about Co...

Describe about Congenital Cardiac Conditions Encountered in Adults ? The entire population of adults with CHD is constituted by patients whose cardiac malformations have a natu

Explain the manifestations of iron deficiency anaemia, Explain the Manifest...

Explain the Manifestations of Iron Deficiency Anaemia? • Paleness of conjunctiva • Paleness of tongue • Paleness of mucosa of soft palate • Low haemoglobin • Swelling of

Can you describe about hematosis, Q. What is hematosis? In humans where doe...

Q. What is hematosis? In humans where does hematosis occur? Hematosis is the oxygenation of the blood, venous blood (oxygen-poor) after hematosis is transformed into arterial b

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