| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Division of Genetics, Indian Agricultural Research Institute, New Delhi–110012, India
* Corresponding author (prasanna{at}ndf.vsnl.net.in)
Knowledge about germplasm diversity and genetic relationships among breeding materials could be an invaluable aid in crop improvement strategies. A number of methods are currently available for analysis of genetic diversity in germplasm accessions, breeding lines, and populations. These methods have relied on pedigree data, morphological data, agronomic performance data, biochemical data, and more recently molecular (DNA-based) data. For reasonably accurate and unbiased estimates of genetic diversity, adequate attention has to be devoted to (i) sampling strategies; (ii) utilization of various data sets on the basis of the understanding of their strengths and constraints; (iii) choice of genetic distance measure(s), clustering procedures, and other multivariate methods in analyses of data; and (iv) objective determination of genetic relationships. Judicious combination and utilization of statistical tools and techniques, such as bootstrapping, is vital for addressing complex issues related to data analysis and interpretation of results from different types of data sets, particularly through clustering procedures. This review focuses on application of statistical tools and techniques in analysis of genetic diversity at the intraspecific level in crop plants.
Abbreviations: PIC, polymorphism information content • GD, genetic distance • GS, genetic similarity • SE, standard error • PCA, principal component analysis • PC, principal component • PCoA, principal coordinate analysis • MDS, multidimensional scaling
This article has been cited by other articles:
|
|
 |
|
  R. J. Wisser, S. C. Murray, J. M. Kolkman, H. Ceballos, and R. J. Nelson Selection Mapping of Loci for Quantitative Disease Resistance in a Diverse Maize Population Genetics, September 1, 2008; 180(1): 583 - 599. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. Gepts Plant Genetic Resources Conservation and Utilization: The Accomplishments and Future of a Societal Insurance Policy Crop Sci., September 8, 2006; 46(5): 2278 - 2292. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. Gazanchian, N. A. Khosh Kholgh Sima, M. A. Malboobi, and E. Majidi Heravan Relationships between Emergence and Soil Water Content for Perennial Cool-Season Grasses Native to Iran Crop Sci., February 1, 2006; 46(2): 544 - 553. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y. Q. Wu, C. M. Taliaferro, G. H. Bai, and M. P. Anderson Genetic Diversity of Cynodon transvaalensis Burtt-Davy and Its Relatedness to Hexaploid C. dactylon (L.) Pers. as Indicated by AFLP Markers Crop Sci., March 28, 2005; 45(3): 848 - 853. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. C. Reif, A. E. Melchinger, and M. Frisch Genetical and Mathematical Properties of Similarity and Dissimilarity Coefficients Applied in Plant Breeding and Seed Bank Management Crop Sci., January 1, 2005; 45(1): 1 - 7. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. C. Meyer, O. Torjek, M. Becher, and T. Altmann Heterosis of Biomass Production in Arabidopsis. Establishment during Early Development Plant Physiology, April 1, 2004; 134(4): 1813 - 1823. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Vadose Zone Journal | |||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||
