Gene-based mapping and pathway analysis of metabolic traits in dairy cows.

Ha, Ngoc-Thuy; Gross, Josef Johann; van Dorland, Hendrika Anette; Tetens, Jens; Thaller, Georg; Schlather, Martin; Bruckmaier, Rupert; Simianer, Henner (2015). Gene-based mapping and pathway analysis of metabolic traits in dairy cows. PLoS ONE, 10(3), e0122325. Public Library of Science 10.1371/journal.pone.0122325

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The metabolic adaptation of dairy cows during the transition period has been studied intensively in the last decades. However, until now, only few studies have paid attention to the genetic aspects of this process. Here, we present the results of a gene-based mapping and pathway analysis with the measurements of three key metabolites, (1) non-esterified fatty acids (NEFA), (2) beta-hydroxybutyrate (BHBA) and (3) glucose, characterizing the metabolic adaptability of dairy cows before and after calving. In contrast to the conventional single-marker approach, we identify 99 significant and biologically sensible genes associated with at least one of the considered phenotypes and thus giving evidence for a genetic basis of the metabolic adaptability. Moreover, our results strongly suggest three pathways involved in the metabolism of steroids and lipids are potential candidates for the adaptive regulation of dairy cows in their early lactation. From our perspective, a closer investigation of our findings will lead to a step forward in understanding the variability in the metabolic adaptability of dairy cows in their early lactation.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Veterinary Physiology
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH)

UniBE Contributor:

Ha, Ngoc-Thuy; Gross, Josef Johann; van Dorland, Hendrika Anette and Bruckmaier, Rupert

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

1932-6203

Publisher:

Public Library of Science

Language:

English

Submitter:

Lorenzo Enrique Hernandez Castellano

Date Deposited:

04 Jul 2017 16:00

Last Modified:

04 Jul 2017 16:00

Publisher DOI:

10.1371/journal.pone.0122325

PubMed ID:

25789767

BORIS DOI:

10.7892/boris.95885

URI:

https://boris.unibe.ch/id/eprint/95885

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