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Phosphorus (P) is an essential component for all living beings. Low P diets prompt phenotypic and molecular adaptations to maintain P homeostasis and increase P utilization (PU). Knowledge of the molecular mechanisms of PU is needed to enable targeted approaches to improve PU efficiency and thus lower P excretion in animal husbandry. In a previous population study, Japanese quail were subjected to a low P diet lacking mineral P and exogenous phytase. Individual PU was determined based on total P intake and excretion. A subset of 20 extreme siblings discordant for PU was selected to retrieve gene expression patterns of ileum (n = 10 per PU group). Sequencing reads have been successfully mapped to the current Coturnix japonica reference genome with an average mapping rate of 86%. In total, 640 genes were found to be differentially abundant between the low and high PU groups (false discovery rate ≤ 0.05). Transcriptional patterns suggest a link between improved PU and mitochondrial energy metabolism, accelerated cell proliferation of enterocytes, and gut integrity. In assessing indicators of the efficient use of macro- and micronutrients, further research on turnover and proliferation rates of intestinal cells could provide an approach to improve P efficiency in poultry species.

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International journal of molecular sciences, 21 (2020), 8, 2762. https://doi.org/10.3390/ijms21082762. ISSN: 1422-0067

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English

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630 Agriculture

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Sustainable Development Goals

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@article{Oster2020, url = {https://hohpublica.uni-hohenheim.de/handle/123456789/16606}, doi = {10.3390/ijms21082762}, author = {Oster, Michael and Reyer, Henry and Trakooljul, Nares et al.}, title = {Ileal transcriptome profiles of Japanese quail divergent in phosphorus utilization}, journal = {International journal of molecular sciences}, year = {2020}, volume = {21}, number = {8}, }

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