Document Detail


Comparison of maize similarity and dissimilarity genetic coefficients based on microsatellite markers.
MedLine Citation:
PMID:  18752197     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study compared different similarity and dissimilarity coefficients and their influence in maize inbred line clustering. Ninety maize S0:1 inbred lines were used and genotyped with 25 microsatellite markers (simple sequence repeat). The simple matching, Rogers and Tanimoto, Russel and Rao, Hamann, Jaccard, Sorensen-Dice, Ochiai, and Roger's modified distance coefficients were compared by consensus index, projection efficiency in a two-dimensional space and by Spearman's correlation. Changes were found in high genetic similarity groupings with different coefficients using the consensus index. Russel and Rao and Jaccard coefficients had the greatest stress values with 75.67 and 40.16%, respectively, indicating that these coefficients should not be used. Genotype ranking changed, mainly in the comparison of the Roger's modified distance in relation to some coefficients (rs = 0.75). Russel and Rao's and Jaccard's coefficients should be avoided for their low accuracy. Moreover, genotype clustering by different similarly coefficients, without a close consideration of these coefficients could affect the research results.
Authors:
M Balestre; R G Von Pinho; J C Souza; J L Lima
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-08-05
Journal Detail:
Title:  Genetics and molecular research : GMR     Volume:  7     ISSN:  1676-5680     ISO Abbreviation:  Genet. Mol. Res.     Publication Date:  2008  
Date Detail:
Created Date:  2008-08-28     Completed Date:  2008-10-08     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101169387     Medline TA:  Genet Mol Res     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  695-705     Citation Subset:  IM    
Affiliation:
Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG, Brasil. marciobalestre@hotmail.com
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MeSH Terms
Descriptor/Qualifier:
DNA, Plant / genetics
Genetic Variation*
Microsatellite Repeats*
Zea mays / genetics*
Chemical
Reg. No./Substance:
0/DNA, Plant

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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