Accounting for heterogeneity of variances to improve the precision of QTL mapping in dairy cattle

Autor: Ching Y. Lin, Gerald B. Jansen, Yuefu Liu

Publikováno v: Animal Science Journal. 78:371-377

The principle of interval mapping for quantitative trait loci (QTL) was originally developed for the analysis of single backcross data but it has been increasingly applied to more complicated experimental designs and data structures. It is important

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11ef69400d74732c011255cc67223f26
https://doi.org/10.1111/j.1740-0929.2007.00449.x

Precision of estimated QTL positions in granddaughter designs using combined haplotype sharing TDT and linkage analysis

Autor: Gerald B. Jansen, Ian McMillan, D. Kolbehdari, L.R. Schaeffer

Publikováno v: Livestock Science. 105:137-143

The aim of this study was to develop the linear haplotype sharing transmission disequilibrium test (LHS-TDT) method and combine this method with the simple regression method to estimate the precision of QTL positions in granddaughter designs. This pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::925fc0d6660946ea0d5d4d1e8d75674a
https://doi.org/10.1016/j.livsci.2006.05.003

Joint International Evaluation of Milking Shorthorn Dairy Cattle for Production Traits

Autor: Gerald B. Jansen, Janusz Jamrozik, L.R. Schaeffer, R A Barrett, Filippo Miglior

Publikováno v: Journal of Dairy Science. 88:3326-3336

Pedigree information and test-day records for the first 3 parities of Milking Shorthorn dairy cattle from 5 countries were analyzed. After editing, the data included 1,018,528 test-day records from 68,653 cows. A multiple-lactation random regression

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https://doi.org/10.3168/jds.s0022-0302(05)73016-2

Power of QTL detection by either fixed or random models in half-sib designs

Autor: Gerald B. Jansen, L.R. Schaeffer, D. Kolbehdari, Brian Allen

Publikováno v: Genetics, Selection, Evolution : GSE
Genetics Selection Evolution, Vol 37, Iss 7, Pp 601-614 (2005)

The aim of this study was to compare the variance component approach for QTL linkage mapping in half-sib designs to the simple regression method. Empirical power was determined by Monte Carlo simulation in granddaughter designs. The factors studied (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::860c89b13d3b621055a3e8338a2d2ee3
https://pubmed.ncbi.nlm.nih.gov/16277970

The covariance between relatives conditional on genetic markers

Autor: Ching Y. Lin, Gerald B. Jansen, Yuefu Liu

Publikováno v: Genetics Selection Evolution
Genetics Selection Evolution, BioMed Central, 2002, 34 (6), pp.657-678. ⟨10.1051/gse:2002030⟩
Genetics, Selection, Evolution : GSE
Genetics Selection Evolution, Vol 34, Iss 6, Pp 657-678 (2002)

International audience; The development of molecular genotyping techniques makes it possible to analyze quantitative traits on the basis of individual loci. With marker information, the classical theory of estimating the genetic covariance between re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79e116e28bfea3191071d961a4a0e115
https://hal.archives-ouvertes.fr/hal-00894276/file/hal-00894276.pdf