Document Detail

Comparison of maize similarity and dissimilarity genetic coefficients based on microsatellite markers.
MedLine Citation:
PMID:  18752197     Owner:  NLM     Status:  MEDLINE    
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.
M Balestre; R G Von Pinho; J C Souza; J L Lima
Related Documents :
9503027 - Minisatellite origins in yeast and humans.
7668287 - Anticipation and instability of it-15 (cag)n repeats in parent-offspring pairs with hun...
17569297 - Association between polymorphisms of the androgen and vitamin d receptor genes with pro...
8401587 - Trinucleotide repeat length instability and age of onset in huntington's disease.
11673797 - A search for specific and common susceptibility loci for schizophrenia and bipolar diso...
15878917 - Comparison of male and female meiotic segregation patterns in translocation heterozygot...
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    
Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG, Brasil.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
DNA, Plant / genetics
Genetic Variation*
Microsatellite Repeats*
Zea mays / genetics*
Reg. No./Substance:
0/DNA, Plant

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

Previous Document:  Mutation in intron 5 of GTP cyclohydrolase 1 gene causes dopa-responsive dystonia (Segawa syndrome) ...
Next Document:  Genetic characterization of Brazilian strains of Aspergillus flavus using DNA markers.