Multivariate factor analysis of genomic correlation matrices in three US dairy cattle breeds 1 Dipartimento di Scienze Zootecniche, Università di Sassari, Italy 2 Animal Improvement Programs Laboratory, ARS, USDA, Beltsville, MD, USA N. P. P. Macciotta 1,* and J. B. Cole 2 Dipartimento di Scienze Zootecniche Università degli Studi di Sassari
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Multivariate factor analysis of genomic correlation matrices in three US dairy cattle breeds
Multivariate factor analysis of genomic correlation matrices in three US dairy cattle breeds. N. P. P. Macciotta 1,* and J. B. Cole 2. 1 Dipartimento di Scienze Zootecniche, Università di Sassari, Italy 2 Animal Improvement Programs Laboratory , ARS, USDA, Beltsville, MD, USA. - PowerPoint PPT Presentation
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Multivariate factor analysis of genomic correlation matrices in three
US dairy cattle breeds
1Dipartimento di Scienze Zootecniche, Università di Sassari, Italy 2Animal Improvement Programs Laboratory, ARS, USDA, Beltsville, MD, USA
Some considerations Some changes in the factor structure
moving from GW to CHRW
Overlapping yield and composition factors (BTA6 in BS)
Different behaviour of protein (BTA14 in JE)
Inclusion of a fertility trait in the functional factor (BTA18 for BS)
Dipartimento di Scienze Zootecniche
Università degli Studi di Sassari
Implications
Dipartimento di Scienze Zootecniche
Università degli Studi di Sassari
Multivariate factor analysis can characterise the correlation structure of GEBV and CEBV
Identification of differences in genetic correlations among traits across the genome and on individual chromosomes
Observed changes in the correlation structure may be indications of genomic regions affecting multiple traits?
Acknowledgements
Dipartimento di Scienze Zootecniche
Università degli Studi di Sassari
Research developed within the non funded cooperative agreement 58-1265-1-033FN between Animal Improvement Programs labortory, ARS, USDA and Università di Sassari, Dipartimento di Scienze Zootecniche