Brown fat in a protoendothermic mammal fuels eutherian evolution.
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ABSTRACT:
SUBMITTER: Oelkrug R
PROVIDER: S-EPMC3717499 | biostudies-literature | 2013
REPOSITORIES: biostudies-literature
Publications
Brown fat in a protoendothermic mammal fuels eutherian evolution.
Oelkrug Rebecca R Goetze Nadja N Exner Cornelia C Lee Yang Y Ganjam Goutham K GK Kutschke Maria M Müller Saskia S Stöhr Sigrid S Tschöp Matthias H MH Crichton Paul G PG Heldmaier Gerhard G Jastroch Martin M Meyer Carola W CW
Nature communications 20130101
Endothermy has facilitated mammalian species radiation, but the sequence of events leading to sustained thermogenesis is debated in multiple evolutionary models. Here we study the Lesser hedgehog tenrec (Echinops telfairi), a phylogenetically ancient, 'protoendothermic' eutherian mammal, in which constantly high body temperatures are reported only during reproduction. Evidence for nonshivering thermogenesis is found in vivo during periodic ectothermic-endothermic transitions. Anatomical studies ...[more]
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