HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Cox, T. S. Articles by Rodgers, D. M. Search for Related Content PubMed Articles by Cox, T. S. Articles by Rodgers, D. M. Agricola Articles by Cox, T. S. Articles by Rodgers, D. M.

Relationship Between Coefficient of Parentage and Genetic Similarity Indices in the Soybean¹

Estimates of genetic similarity or distance between populations or strains of plants are useful in planning crosses for hybrid or pureline cultivar development. We compared coefficients of parentage (r) and similarity indices (s, s_z, and s_M, based on 20, 13, and 7 genetic loci, respectively) for combinations of 115 soybean [Glycine max (L.) Merr.] cultivars and ancestral introductions. Correlations between r and s were higher than those between r and s_z or s_M, primarily because s includes information from more loci. The correlation between r and s was higher for the group of soybean cultivars released in the 1970s than for earlier cultivar groups, primarily because of the greater importance of identity by descent relative to identity in phenotype in determining s. The most useful estimate of genetic relationship is a composite index that includes both r and s.

Key Words: Isozyme electrophoresis • Genetic diversity • Inbreeding • Coancestry

² Respectively, research geneticist, USDA-ARS, Dep. of Agronomy, Kansas State Univ., Manhattan, KS 66506; professor, Dep. of Plant Science, Univ. of New Hampshire, Durham, NH 03824; assistant professor, Dep. of Biology, Baldwin-Wallace College, Berea, OH 44017; and formerly assistant professor, Dep. of Agronomy, Kansas State Univ., Manhattan, KS 66506 (present address: Pioneer Hi-bred International, PO Box 1506, Plainview, TX 79703.)

Received for publication September 17, 1984.

This article has been cited by other articles:

				P. A. Brevis, N. V. Bassil, J. R. Ballington, and J. F. Hancock Impact of Wide Hybridization on Highbush Blueberry Breeding J. Amer. Soc. Hort. Sci., May 1, 2008; 133(3): 427 - 437. [Abstract] [Full Text] [PDF]

				Y.-B. Fu, G. W. Peterson, and M. J. Morrison Genetic Diversity of Canadian Soybean Cultivars and Exotic Germplasm Revealed by Simple Sequence Repeat Markers Crop Sci., September 1, 2007; 47(5): 1947 - 1954. [Abstract] [Full Text] [PDF]

				A. M. Bauer, T. C. Reetz, and J. Leon Estimation of Breeding Values of Inbred Lines using Best Linear Unbiased Prediction (BLUP) and Genetic Similarities Crop Sci., November 21, 2006; 46(6): 2685 - 2691. [Abstract] [Full Text] [PDF]

				G. Van Becelaere, E. L. Lubbers, A. H. Paterson, and P. W. Chee Pedigree- vs. DNA Marker-Based Genetic Similarity Estimates in Cotton Crop Sci., September 23, 2005; 45(6): 2281 - 2287. [Abstract] [Full Text] [PDF]

				S. Dreisigacker, P. Zhang, M. L. Warburton, M. Van Ginkel, D. Hoisington, M. Bohn, and A. E. Melchinger SSR and Pedigree Analyses of Genetic Diversity among CIMMYT Wheat Lines Targeted to Different Megaenvironments Crop Sci., March 1, 2004; 44(2): 381 - 388. [Abstract] [Full Text] [PDF]

				Z. Cui, T. E. Carter Jr., J. W. Burton, and R. Wells Phenotypic Diversity of Modern Chinese and North American Soybean Cultivars Crop Sci., November 1, 2001; 41(6): 1954 - 1967. [Abstract] [Full Text] [PDF]

				X. Zhou, T. E. Carter Jr., Z. Cui, S. Miyazaki, and J. W. Burton Genetic Base of Japanese Soybean Cultivars Released during 1950 to 1988 Crop Sci., November 1, 2000; 40(6): 1794 - 1802. [Abstract] [Full Text] [PDF]