TY - JOUR A1 - Meng, Li A1 - Sendtner, Michael A1 - Smith, Austin T1 - Essential function of LIF receptor in motor neurons N2 - D EVELOPME'iT and maintenance of the mammalian nervous system is dependent upon neurotrophic cytokines. One class of neurotrophic factor acts through rcccptor complexes involving the lowaffinity leukaemia inhibitor y faclor receptor subunit (LlF-R). Members of this fa mily of cytokines, such as ciliary neurotrophic factor (CNTF) and leukaemia inhibitory factor (LIF), have profound effects on the survival and maintenance of motor neurons, Recently it was reported that mice lacking LlF-R die shortly after birth unlike mice lacking CNTF or LIF which are viable. Here we describe histopathological analyses of lifr mutants tha t reveal a loss > 35% of facia l motor neurons, 40% of spinal motor neurons and 50% of neurons in the nucleus ambiguus. These findings point to the existence of a ligand for LIF-R tha t is required for the normal development of motor neurons in both brainstem nuclei and spinal cord. Y1 - 1995 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-34219 ER - TY - JOUR A1 - Liu, Han A1 - Chen, Chunhai A1 - Gao, Zexia A1 - Min, Jiumeng A1 - Gu, Yongming A1 - Jian, Jianbo A1 - Jiang, Xiewu A1 - Cai, Huimin A1 - Ebersberger, Ingo A1 - Xu, Meng A1 - Zhang, Xinhui A1 - Chen, Jianwei A1 - Luo, Wei A1 - Chen, Boxiang A1 - Chen, Junhui A1 - Liu, Hong A1 - Li, Jiang A1 - Lai, Ruifang A1 - Bai, Mingzhou A1 - Wei, Jin A1 - Yi, Shaokui A1 - Wang, Huanling A1 - Cao, Xiaojuan A1 - Zhou, Xiaoyun A1 - Zhao, Yuhua A1 - Wei, Kaijian A1 - Yang, Ruibin A1 - Liu, Bingnan A1 - Zhao, Shancen A1 - Fang, Xiaodong A1 - Schartl, Manfred A1 - Qian, Xueqiao A1 - Wang, Weimin T1 - The draft genome of blunt snout bream (Megalobrama amblycephala) reveals the development of intermuscular bone and adaptation to herbivorous diet JF - GigaScience N2 - The blunt snout bream Megalobrama amblycephala is the economically most important cyprinid fish species. As an herbivore, it can be grown by eco-friendly and resource-conserving aquaculture. However, the large number of intermuscular bones in the trunk musculature is adverse to fish meat processing and consumption. As a first towards optimizing this aquatic livestock, we present a 1.116-Gb draft genome of M. amblycephala, with 779.54 Mb anchored on 24 linkage groups. Integrating spatiotemporal transcriptome analyses, we show that intermuscular bone is formed in the more basal teleosts by intramembranous ossification and may be involved in muscle contractibility and coordinating cellular events. Comparative analysis revealed that olfactory receptor genes, especially of the beta type, underwent an extensive expansion in herbivorous cyprinids, whereas the gene for the umami receptor T1R1 was specifically lost in M. amblycephala. The composition of gut microflora, which contributes to the herbivorous adaptation of M. amblycephala, was found to be similar to that of other herbivores. As a valuable resource for the improvement of M. amblycephala livestock, the draft genome sequence offers new insights into the development of intermuscular bone and herbivorous adaptation. KW - Megalobrama amblycephala KW - whole genome KW - herbivorous diet KW - intermuscular bone KW - transcriptome KW - gut microflora Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-170844 VL - 6 IS - 7 ER -