Question

FICT and RICT cytoplasmic markers used for selection of

Answer 1

Answer:

The cytoplasm consists of cytosol and organelles. Cytosol contains water, salts, and organic molecules such as cytoskeleton filaments and ribosomes. All organelles in the cell are suspended in the cytoplasm with cytosol surrounding them. The cytoplasm is 70% of a cell’s volume and is where most cellular activities occur. Cytoplasm marker antibodies detect proteins specific to the cytoplasm and can aid in the study of the morphology and function of the cytoplasm. Cytoplasm marker antibodies can also help elucidate the roles a protein may play in a number of tasks that are centered in or influenced by the cytoplasm.

Invitrogen cytoplasm marker antibodies are designed to dependably detect the key cytoplasm targets. Each antibody is validated for use in various applications. Key cytoplasm targets include:

Explanation:

The traditional onion (Allium cepa) hybrid production requires the development of maintainer and male sterile lines and also a pollinator line with good specific combination ability. We report the identification of maintainer and male-sterile onion lines within the Brazilian 'Baia Periforme' derived population, 'Alfa São Francisco', associating random field pairing of male-fertile plants with selected male-sterile plants and PCR-based marker system monitoring S, T and N-cytoplasms. Male-sterile plants produced flowers with light green anthers which were easily detected in the field. A frequency of 2.0% of male-sterile plants was estimated in the 'Alfa São Francisco' sampled population. Male-sterile plants produced the 5'cob-marker 180-bp and the orfA501-marker 473-bp fragments, suggesting the T-cytoplasm type, while the maintainer line produced only the 5'cob-marker 180-bp. These identified lines will be important to develop tropical onion hybrids well-adapted to Brazilian low latitudes and to future comparative studies with other onion cytoplasmic genic male sterility systems.

Key words: Allium cepa, CMS, 'Alfa São Francisco', tropical hybrid