ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Gene expression in wheat: the quality genes in grain endosperm.

Clarke, B. C.; Taylor, W.; Morell, M.; Li, Z.; Rahman, S.; Ali, S.; Appels, R.;

Proceedings of the Ninth International Wheat Genetics Symposium, Saskatoon, Saskatchewan, Canada, 2-7 August 1998. Year: 1998 Pages: 65-80 Ref: 4 pp. of ref.

1998

บทคัดย่อ

Genome projects world-wide are moving, in selected organisms, toward the complete structural description of genes required for life; the plant species most advanced in this analysis are rice and Arabidopsis. The DNA sequence databases of well studied organisms provide the basis for analysing more complex organisms, such as wheat. Although extensive sequence databases for certain families of genes in wheat already exist and include seed storage protein genes and the genes for enzymes involved in starch biosynthesis, a great deal of interest now centres on defining the control of gene expression. Developmental pathways, such as those involved in grain maturation and disease resistance, can now be analysed using molecular technologies and thus target the characterisation of traits in wheat that are of agronomic importance. The extensive genetic maps now available for wheat provide an immediate route for capturing this new knowledge because genes directly involved in determining a particular trait p

rovide the "perfect" marker for accelerating breeding programmes targeting the respective trait. Postharvest processes should also be aided by new analytical methods based on the knowledge of genes involved in specific traits. This paper provides a summary of the technologies employed to study the genes expressed in particular tissues and focuses on endosperm development in wheat as an example of how these technologies can be combined with classical studies.