Association Mapping for Improvement of Quantitative Traits in Plant Breeding Populations

Authors

  • Umesh R Rosyara South Dakota State University, Plant Science Department, Brookings, South Dakota
  • Bal K Joshi Biotechnology Unit, NARC, Khumaltar, Kathmandu

DOI:

https://doi.org/10.3126/njb.v2i1.5686

Keywords:

Association mapping, plant breeding, DNA marker, quantitative trait loci

Abstract

DNA-based molecular markers have been extensively utilized for mapping of genes and quantitative trait loci (QTL) of interest based on linkage analysis in mapping populations. This is in contrast to human genetics that use of linkage disequilibrium (LD)-based mapping for fine mapping of QTLs using single nucleotide polymorphisms. LD based association mapping (AM) has promise to be used in plants. Possible use of such approach may be for fine mapping of genes / QTLs, identifying favorable alleles for marker aided selection and cross validation of results from linkage mapping for precise location of genes / QTLs of interest. In the present review, we discuss different mapping populations, approaches, prospects and limitations of using association mapping in plant breeding populations. This is expected to create awareness in plant breeders in use of AM in crop improvement activities.

Key words: Association mapping; plant breeding; DNA marker; quantitative trait loci

DOI: http://dx.doi.org/10.3126/njb.v2i1.5686  

Nepal Journal of Biotechnology Jan.2012, Vol.2(1): 72-89

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How to Cite

Rosyara, U. R., & Joshi, B. K. (2012). Association Mapping for Improvement of Quantitative Traits in Plant Breeding Populations. Nepal Journal of Biotechnology, 2(1), 72–89. https://doi.org/10.3126/njb.v2i1.5686

Issue

Vol. 2 No. 1 (2012)

Section

Review Articles

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