A multi-marker model for detecting chromosomal segments displaying QTL activity

A statistical method is presented for detecting quantitative trait loci (QTLs), based on the linear model. Unlike methods able to detect a few well separated QTLS and to estimate their effects and positions, this method considers the genome as a whole and enables the detection of chromosomal segment...

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Veröffentlicht in:Genetics (Austin) 1993-08, Vol.134 (4), p.1277-1288
Hauptverfasser: Rodolphe, F, Lefort, M
Format: Artikel
Sprache:eng
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Zusammenfassung:A statistical method is presented for detecting quantitative trait loci (QTLs), based on the linear model. Unlike methods able to detect a few well separated QTLS and to estimate their effects and positions, this method considers the genome as a whole and enables the detection of chromosomal segments involved in the differences between two homozygous lines, and their backcross, doubled haploid, or F2 progenies, for a quantitative trait. Genetic markers must be codominant, but missing markers are accepted, provided they are missing independently from the experiment. Asymptotic properties, which are of practical use, are developed. This method does not rely on strong genetic hypotheses, and thus does not permit any precise genetic analysis of the trait under study, but it does assess which regions of the genome are involved, whatever the complexity of the genetic determinism number, effects and interactions among (QTLs). Simultaneous use of several methods, including this one, should lead to better efficiency in QTL detection
ISSN:0016-6731
1943-2631
1943-2631
DOI:10.1093/genetics/134.4.1277