Sexual and apomictic plant reproduction in the genomics era: exploring the mechanisms potentially useful in crop plants

Dwivedi, S.L. and Perotti, E. and Upadhyaya, H.D. and Ortiz, R. (2010) Sexual and apomictic plant reproduction in the genomics era: exploring the mechanisms potentially useful in crop plants. Sexual Plant Reproduction, 23 (4). pp. 265-279.

[img] PDF
Restricted to ICRISAT researchers only

Abstract

Scroll upScroll downReferences (111)Cited By (1)Export CitationAboutAbstract Arabidopsis, Mimulus and tomato have emerged as model plants in researching genetic and molecular basis of differences in mating systems. Variations in floral traits and loss of self-incompatibility have been associated with mating system differences in crops. Genomics research has advanced considerably, both in model and crop plants, which may provide opportunities to modify breeding systems as evidenced in Arabidopsis and tomato. Mating system, however, not recombination per se, has greater effect on the level of polymorphism. Generating targeted recombination remains one of the most important factors for crop genetic enhancement. Asexual reproduction through seeds or apomixis, by producing maternal clones, presents a tremendous potential for agriculture. Although believed to be under simple genetic control, recent research has revealed that apomixis results as a consequence of the deregulation of the timing of sexual events rather than being the product of specific apomixis genes. Further, forward genetic studies in Arabidopsis have permitted the isolation of novel genes reported to control meiosis I and II entry. Mutations in these genes trigger the production of unreduced or apomeiotic megagametes and are an important step toward understanding and engineering apomixis

Item Type: Article
Author Affiliation: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502324 AP India
Subjects: Plant Production
Divisions: Other Crops
Depositing User: Syamala
Date Deposited: 25 Jul 2011 04:44
Last Modified: 25 Jul 2011 04:44
Official URL: http://www.springerlink.com/content/kpu0211x3h1123...
URI: http://eprints.icrisat.ac.in/id/eprint/2428

Actions (login required)

View Item View Item