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Organization of Genetic Diversity Within and Among Populations of Gleditsia triacanthos (Leguminosae)

1990; Wiley; Volume: 77; Issue: 8 Linguagem: Inglês

10.2307/2444577

1537-2197

Andrew Schnabel, J. L. Hamrick,

Turfgrass Adaptation and Management

American Journal of BotanyVolume 77, Issue 8 p. 1060-1069 Article ORGANIZATION OF GENETIC DIVERSITY WITHIN AND AMONG POPULATIONS OF GLEDITSIA TRIACANTHOS (LEGUMINOSAE) Andrew Schnabel, Andrew Schnabel Department of Genetics, University of Georgia, Athens, Georgia, 30602Search for more papers by this authorJ. L. Hamrick, J. L. Hamrick Departments of Botany and Genetics, University of Georgia, Athens, Georgia, 30602Search for more papers by this author Andrew Schnabel, Andrew Schnabel Department of Genetics, University of Georgia, Athens, Georgia, 30602Search for more papers by this authorJ. L. Hamrick, J. L. Hamrick Departments of Botany and Genetics, University of Georgia, Athens, Georgia, 30602Search for more papers by this author First published: 01 August 1990 https://doi.org/10.1002/j.1537-2197.1990.tb13601.xCitations: 53AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract This study describes levels of allozyme diversity and patterns of genetic structure within and among populations of honey locust (Gleditsia triacanthos L.). Using data from starch gel electrophoresis, honey locust was found to have high genetic diversity within populations (HME = 0.198), and low, but significant genetic differentiation among populations (ΓST = 0.059). Temporal and spatial substructuring were also investigated in two populations from eastern Kansas. Few genetic differences were found among nine age classes in one population and between juveniles and adults in the second population. Separate autocorrelation analyses of juveniles and adults revealed significant spatial substructuring in both age classes. Three conclusions were reached from these analyses. First, even small amounts of clonal growth can cause large increases in the amount of substructuring in populations. Second, spatial genetic substructuring among juveniles at both sites most likely represents the presence of family groups. Last, the overall level of spatial genetic substructuring at both sites was somewhat greater in the juvenile classes than in the nonclonal adult classes. This latter conclusion is consistent with theoretical studies suggesting that limited gene movement causes a steady increase in spatial structure from generation to generation. Citing Literature Volume77, Issue8August 1990Pages 1060-1069 RelatedInformation