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Protocols in ecological and environmental plant physiology


Article << Previous     |     Next >>   Contents Vol 58(6)

Cytogenetics in the age of molecular genetics

Peng Zhang A C, Bernd Friebe B, Bikram Gill B, R. F. Park A

A Plant Breeding Institute, University of Sydney, 107 Cobbitty Road, Camden, NSW 2570, Australia.
B Wheat Genetics Resource Center, Department of Plant Pathology, 4024 Throckmorton Plant Sciences Center, Kansas State University, Manhattan, KS 66506, USA.
C Corresponding author. Email: pengzhang@camden.usyd.edu.au
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From the beginning of the 20th Century, we have seen tremendous advances in knowledge and understanding in almost all biological disciplines, including genetics, molecular biology, structural and functional genomics, and biochemistry. Among these advances, cytogenetics has played an important role. This paper details some of the important milestones of modern cytogenetics. Included are the historical role of cytogenetics in genetic studies in general and the genetics stocks produced using cytogenetic techniques. The basic biological questions cytogenetics can address and the important role and practical applications of cytogenetics in applied sciences, such as in agriculture and in breeding for disease resistance in cereals, are also discussed. The goal of this paper is to show that cytogenetics remains important in the age of molecular genetics, because it is inseparable from overall genome analysis. Cytogenetics complements studies in other disciplines within the field of biology and provides the basis for linking genetics, molecular biology and genomics research.

Keywords: chromosome banding, fluorescence in situ hybridisation (FISH), deletion lines, physical mapping, chromosome landmark, alien gene introgression.

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