Linked Life Data

18765841

Source:http://linkedlifedata.com/resource/pubmed/id/18765841

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-1-13
pubmed:abstractText
Data from 3 prefectures and a nationwide farming corporation were used to assess the usefulness of the "link provider data" in providing indirect genetic links for the national genetic evaluation for carcass weight across weakly connected subpopulations of the Japanese Black cattle. The data from the farming corporation provided genetic links to those of all prefectures and was therefore used as the link provider data. Two national genetic evaluation strategies under an animal model were compared, based on the generalized coefficient of determination (CD) of contrasts between mean EBV of sires or maternal grandsires (MGS) from different prefectures: strategy PA-1 was a pooled analysis of the data sets of the 3 prefectures, and strategy PA-2 was a pooled analysis of the data sets of the 3 prefectures and the farming corporation. The CD of the contrasts were greater for PA-2 than for PA-1. Under PA-2, the CD of the contrasts between mean EBV of sires or MGS ranged from 0.67 to 0.78 or from 0.61 to 0.70, respectively. Pooling the data from the 3 prefectures and the farming corporation increased the degree of connectedness through the link provider data rather than the amount of information by adding more data, thus improving the accuracy of prediction. The differences between mean EBV of sires or MGS from different prefectures were smaller for PA-1 than for PA-2. This finding suggests that genetic differences in carcass weight among prefectures are present, but that they would be confused with the environmental differences under PA-1 because of the lack of genetic connectedness among the prefectures. On the other hand, the genetic differences among the prefectures would be predicted precisely under PA-2 because the genetic connectedness among the prefectures was improved by using the link provider data. The results demonstrate that the link provider data could be used to unify within-prefecture evaluation to form a Japanese national genetic evaluation across weakly connected subpopulations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1525-3163
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
87
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
62-71
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
The use of link provider data to improve national genetic evaluation across weakly connected subpopulations.
pubmed:affiliation
Laboratory of Animal Breeding and Genetics, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.
pubmed:publicationType
Journal Article