Advances on seed vigor physiological and genetic mechanisms

Qun, Sun and Jian-Hua, Wang and Bao-Qi, Sun (2007) Advances on seed vigor physiological and genetic mechanisms. Agricultural Sciences in China, 6 (9). pp. 1060-1066.

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Abstract

Seed vigour is a more promising seed quality character reflecting potential seed germination, field emergence and seed storage ability under different conditions than standard germination. Standard germination is influenced by genetic background and environmental effects during seed development and storage conditions. The latest research on physiological mechanism in seed vigour showed that at the late stage of seed development, the development of seed vigour involves some stress-resistant substances including late embryogenesis abundant (LEA) protein, oligosaccharides and abscisic acid (ABA). Whereas the loss of seed vigour, or seed aging and deterioration, could be attributed to lipid peroxidation, chromosome deformation and genes aberrance, and embryo protein degradation, etc. Seed vigour is a quantitative character controlled by multi-genes. Genetic and quantitative trait locus (QTL) analyses on seed-vigor trait in model plants, such as Arabidopsis and rice, are mostly concentrated on related morphology traits, whereas few physiological traits have been researched. It was concluded that, all of the QTL genetic characteristics of seed vigor including QTL quantities, its locus on chromosome, genetic effects, and interaction effects between genetic and environment, differed with plant species and used seed-vigor traits

Item Type:	Article
Subjects:	Plant Physiology and Biochemistry > Plant Physiology Plant Physiology and Biochemistry > Biochemistry
Divisions:	General
Depositing User:	Syamala
Date Deposited:	23 Feb 2011 17:46
Last Modified:	23 Feb 2011 17:49
Official URL:	http://dx.doi.org/10.1016/S1671-2927(07)60147-3
URI:	http://eprints.icrisat.ac.in/id/eprint/1544

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