Scallop genome provides insights into evolution of bilaterian karyotype and development

文献类型： 外文期刊

第一作者： Wang, Shi

作者： Wang, Shi;Jiao, Wenqian;Xun, Xiaogang;Sun, Yan;Dong, Bo;Zhang, Lingling;Hu, Xiaoli;Wang, Jing;Wang, Yangfan;Huang, Xiaoting;Wang, Ruijia;Lv, Jia;Li, Yuli;Zhang, Zhifeng;Lu, Wei;Hou, Rui;Li, Xue;Li, Hengde;Ning, Xianhui;Zhao, Liang;Xing, Qiang;Dou, Jinzhuang;Li, Yangping;Mao, Junxia;Guo, Haobing;Dou, Huaiqian;Li, Tianqi;Mu, Chuang;Fu, Qiang;Fu, Xiaoteng;Miao, Yan;Yu, Qian;Li, Ruojiao;Liao, Huan;Li, Xuan;Kong, Yifan;Bao, Zhenmin;Wang, Shi;Dong, Bo;Zhang, Jinbo;Li, Ji;Sun, Xiaoqing;Wang, Dawei;Hui, Yuanyuan;Liu, Yunchao;Lin, Yu;Jiang, Wenkai;Liu, Jian;Jiang, Zhi;Li, Ruiqiang;Guo, Ximing;Huan, Pin;Liu, Baozhong;Hu, Xiaoli;Bao, Zhenmin;Zhao, Chengtian;Liang, Jun;Zhou, Zunchun;Li, Hengde;Chourrout, Daniel

作者机构：

期刊名称：NATURE ECOLOGY & EVOLUTION （ 影响因子：15.46； 五年影响因子：15.974 ）

ISSN： 2397-334X

年卷期： 2017 年 1 卷 5 期

页码：

收录情况： SCI

摘要： Reconstructing the genomes of bilaterian ancestors is central to our understanding of animal evolution, where knowledge from ancient and/or slow-evolving bilaterian lineages is critical. Here we report a high-quality, chromosome-anchored reference genome for the scallop Patinopecten yessoensis, a bivalve mollusc that has a slow-evolving genome with many ancestral features. Chromosome-based macrosynteny analysis reveals a striking correspondence between the 19 scallop chromosomes and the 17 presumed ancestral bilaterian linkage groups at a level of conservation previously unseen, suggesting that the scallop may have a karyotype close to that of the bilaterian ancestor. Scallop Hox gene expression follows a new mode of subcluster temporal co-linearity that is possibly ancestral and may provide great potential in supporting diverse bilaterian body plans. Transcriptome analysis of scallop mantle eyes finds unexpected diversity in phototransduction cascades and a potentially ancient Pax2/5/8-dependent pathway for noncephalic eyes. The outstanding preservation of ancestral karyotype and developmental control makes the scallop genome a valuable resource for understanding early bilaterian evolution and biology.

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