Methods useful in self-incompatibility, Biology

Methods Useful in Self-Incompatibility

More specific methods useful in overcoming self-incompatibility are mentioned below

1. Bud Pollination: In Petunia axillaris early self-pollination of buds leads to normal fertilization.

2. Modification of Stigmatic Surface: Application of the lectin, concanavalin A, to stigma is also helpful in overcoming incompatibility in Brassica. Likewise, prior treatment of stigma with detergent, and organic solvent (hexane) helps to modify the incompatibility reaction. Pretreatment of stigma with NaCl (15g/l) in Brassica campestris blocks the incompatibility reaction.

3. Heat Treatment of Style: In Lilium longiflorum pre-treatment of the style at 50" C for 6 min. could prevent self incompatibility. In rye, even 30" C is effective in inhibiting the incompatibility reaction.

 4. Irradiation: Incompatibility in Lycopersicon peruvianum could be overcome by gamma rays. The higher seed-set per plant achieved by this method is ascribed to prevention of flower abscission at early stage. Irradiation seems to be fruitful only in plants where incompatibility is under the control of gametophyte.

5. Increased CO2 Level: In Brassica species, raising of atmospheric level of CO2 by 100 fold, at 100% relative humidity helps to overcome self incompatibility. This method is an important tool to maintain the inbred parental lines of Brassica for the production of S1 hybrid seeds.

6. Parasexual Hybridization: As it includes the hybridization of somatic cells (protoplast) to conquer sexual incompatibility this is termed as "parasexual hybridization".

Posted Date: 1/23/2013 5:52:52 AM | Location : United States







Related Discussions:- Methods useful in self-incompatibility, Assignment Help, Ask Question on Methods useful in self-incompatibility, Get Answer, Expert's Help, Methods useful in self-incompatibility Discussions

Write discussion on Methods useful in self-incompatibility
Your posts are moderated
Related Questions
Q. Is there an exchange of cells between the mother and the fetus through the placenta? Under usual conditions there is no passage of cells across the placenta during gestation

What is myoglobin? What is the function of this molecule in the muscle tissue? Myoglobin is a pigment same to hemoglobin and present in muscle fibers. Myoglobin has a great af

Multipotent SCs: are cells differentiated & form a number of other tissues, while their sources are not fetal tissue; umblical cord blood & postnatal stem cells including dental p

Determine the Fransworth 100 Hue Panel Test This is a simple and useful test using colour chips arranged in a particular sequence. Colour deficient patients make errors in arra

Energy Metabolism In the preceding sections of the unit, you studied how the products of digestion of food, viz: amino acids, sugars and fatty acids are absorbed and transport

Dopamine is important for working memory and drug that increases the level of dopamine in the brain or facilities the action of dopamine, enhances working memory capabilities.Dopam


what is the mode of nutrition in pisces

SURGERY FOR CORONARY ARTERY DISEASE : Stenotic coronary artery disease (CAD) is caused by the thickening and narrowing of the coronary arteries (Atherosclerosis). Initially it cau

What is meant by encystment