Data from: Evolutionary suppression of erythropoiesis via the modulation of TGF-β signaling in an Antarctic icefish ...

• Main Authors: Xu, Qianghua, Cai, Chang, Hu, Xingxing, Liu, Yun, Guo, Yanan, Hu, Peng, Chen, Zuozhou, Peng, Shihua, Zhang, Dongsheng, Jiang, Shouwen, Wu, Zhichao, Chan, Jiulin, Chen, Liangbiao, Peng, Sihua
• Format: Dataset
• Language: English
• Published: Dryad 2015
• Subjects: microRNAome; TGF-β signaling; transcriptome comparison; Erythropoiesis; Antarctic icefish; Antarctic; The Antarctic; Antarc*; Icefish
• Online Access: https://dx.doi.org/10.5061/dryad.5p6vv; https://datadryad.org/stash/dataset/doi:10.5061/dryad.5p6vv

The Antarctic icefish, a family (Channichthyidae) of teleosts within the perciform suborder Notothenioidei, are the only known vertebrates without oxygen-transporting haemoglobins and that are largely devoid of circulating erythrocytes. To elucidate the evo-devo mechanisms underpinning the suppressed erythropoiesis in the icefish, we conducted comparative studies on the transcriptomes and microRNAomes of the primary haematopoietic tissues between an icefish (Chionodraco hamatus) and two red-blooded notothenioids (Trematomus bernacchii and Gymnodraco acuticeps). We identified substantial remodelling of the haematopoietic programs in the icefish through which erythropoiesis is selectively suppressed. Experimental verification showed that erythropoietic suppression in the icefish may be attributable to the upregulation of TGF-β signalling, which coincides with reductions in multiple transcription factors essential for erythropoiesis and the upregulation of hundreds of microRNAs, the majority (> 80%) of which ... : DRYAD_Supplemental Data ...