TY  - JA
AU  - Ceron-Rojas,J.J.
AU  - Castillo-González,F.
AU  - Sahagún-Castellanos,J.
AU  - Santacruz-Varela,A.
AU  - Benítez-Riquelme,I.
AU  - Crossa,J.
TI  - A molecular selection index method based on Eigenanalysis
SN  - 0016-6731
PY  - 2008///
CY  - USA
PB  - Genetics Society of America
KW  - AGROVOC
KW  - Marker-assisted selection
KW  - Selection Index
KW  - Breeding
N1  - Peer review; Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=1943-2631
N2  - The traditional molecular selection index (MSI) employed in marker-assisted selection maximizes the selection response by combining information on molecular markers linked to quantitative trait loci (QTL) and phenotypic values of the traits of the individuals of interest. This study proposes an MSI based on an eigenanalysis method (molecular eigen selection index method, MESIM), where the first eigenvector is used as a selection index criterion, and its elements determine the proportion of the trait's contribution to the selection index. This article develops the theoretical framework of MESIM. Simulation results show that the genotypic means and the expected selection response from MESIM for each trait are equal to or greater than those from the traditional MSI. When several traits are simultaneously selected, MESIM performs well for traits with relatively low heritability. The main advantages of MESIM over the traditional molecular selection index are that its statistical sampling properties are known and that it does not require economic weights and thus can be used in practical applications when all or some of the traits need to be improved simultaneously
UR  - https://hdl.handle.net/20.500.12665/309
DO  - https://doi.org/10.1534/genetics.108.087387
T2  - Genetics
ER  -