Transcriptomic plasticity of the hypothalamic osmoregulatory control centre of the Arabian dromedary camel

Panjiao Lin, Benjamin T. Gillard, Audrys G. Pauža, Fernando A. Iraizoz, Mahmoud A. Ali, Andre S. Mecawi, Fatma Z.Djazouli Alim, Elena V. Romanova, Pamela A. Burger, Michael P. Greenwood, Abdu Adem, David Murphy

Research output: Contribution to journalArticlepeer-review


Water conservation is vital for life in the desert. The dromedary camel (Camelus dromedarius) produces low volumes of highly concentrated urine, more so when water is scarce, to conserve body water. Two hormones, arginine vasopressin and oxytocin, both produced in the supraoptic nucleus, the core hypothalamic osmoregulatory control centre, are vital for this adaptive process, but the mechanisms that enable the camel supraoptic nucleus to cope with osmotic stress are not known. To investigate the central control of water homeostasis in the camel, we first build three dimensional models of the camel supraoptic nucleus based on the expression of the vasopressin and oxytocin mRNAs in order to facilitate sampling. We then compare the transcriptomes of the supraoptic nucleus under control and water deprived conditions and identified genes that change in expression due to hyperosmotic stress. By comparing camel and rat datasets, we have identified common elements of the water deprivation transcriptomic response network, as well as elements, such as extracellular matrix remodelling and upregulation of angiotensinogen expression, that appear to be unique to the dromedary camel and that may be essential adaptations necessary for life in the desert.

Original languageEnglish (US)
Article number1008
JournalCommunications biology
Issue number1
StatePublished - Dec 2022

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology
  • General Agricultural and Biological Sciences
  • Medicine (miscellaneous)


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