RFLP approach to breeding for quantitative traits in plants - a critique

Arunachalam, V. and Chandrashekaran, S. (1993) RFLP approach to breeding for quantitative traits in plants - a critique. Journal of Genetics, 72 (2/3). pp. 73-83.

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A number of recent papers suggest that the use of RFLPs as markers offers a clear advantage in breeding for improvement of quantitative traits (QTs). The concepts underlying establishment of linkage between RFLP markers and QT loci stem from 3 papers on tomato published during 1987-91. Essentially, continuously varying QT phenotypes are assigned to RFLP genotype classes, which can be considered to be determined by a single, diallelic gene with codominant alleles. Linkage is inferred through statistical analysis. Similarly, interaction between markers and QT is also tested by an analysis of variance. Here, the statistical methods employed in these 3 papers to detect linkage are critically evaluated, especially because subsequent investigations take the concepts developed in these papers as proven. The methods employed are scrutinized and the inferences drawn are examined to bring to light what are believed to be conceptual inadequacies.

Item Type: Article
Additional Information: We sincerely thank Dr. Deepak Pental (Tata Energy Research Institute,New Delhi) and Dr K. Vinod Prabhu(Division of Genetics,IARI,New Delhi) for discussions and constructive criticism.
Uncontrolled Keywords: Rflp, Molecular markers, Quantitative traits, Linkage, Analysis of variance, Plant breeding
Author Affiliation: Division of Genetics, Indian Agricultural Research Institute, India.
Subjects: Crop Improvement
Crop Improvement > Plant Breeding
Divisions: General
Depositing User: Mr Arbind Seth
Date Deposited: 01 Jan 2013 10:57
Last Modified: 01 Jan 2013 10:57
Official URL: http://dx.doi.org/10.1007/BF02927923
URI: http://eprints.icrisat.ac.in/id/eprint/9147

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