Ecology and Evolutionary Biology Department, University of California Santa Cruz, Santa Cruz, CA, USA.
Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA, USA.
J Hered. 2022 Nov 30;113(6):665-672. doi: 10.1093/jhered/esac024.
The once abundant black abalone, Haliotis cracherodii, is a large, long-lived grazing marine mollusk that inhabits the rocky intertidal along the coast of California. The species has experienced dramatic declines since the mid-1980s largely due to the fatal bacterial disease called withering syndrome, leading to the collapse of an economically important fishery and to its inclusion into the IUCN listing as a critically endangered species. In some places impacted by the disease, populations of black abalone have declined by more than 90%, prompting population crashes associated with very little recruitment of new individuals and changes to intertidal communities. Habitats that were dominated by crustose coralline algae and bare rock have become dominated instead by fleshy algae and sessile invertebrates. Here, we present the first high-quality black abalone reference genome, assembled with PacBio HiFi long-reads and assembled with Dovetail Omni-C data to generate a scaffold-level assembly. The black abalone reference genome will be an essential resource in understanding the evolutionary history of this species as well as for exploring its current levels of genetic diversity and establishing future management and restoration plans.
曾经丰富的黑鲍，Haliotis cracherodii，是一种大型、长寿的食草海洋软体动物，栖息在加利福尼亚沿海的岩石潮间带。自 20 世纪 80 年代中期以来，由于一种名为枯萎综合征的致命细菌性疾病，该物种经历了急剧下降，导致一个经济上重要的渔业崩溃，并被列入 IUCN 濒危物种红色名录列为极度濒危物种。在一些受到疾病影响的地方，黑鲍的数量已经下降了 90%以上，导致与新个体的少量补充和潮间带群落变化相关的种群崩溃。曾经以壳状珊瑚藻和裸露岩石为主的栖息地，现在则被肉质藻类和固着无脊椎动物所占据。在这里，我们提供了第一个高质量的黑鲍参考基因组，该基因组是使用 PacBio HiFi 长读长组装的，并使用 Dovetail Omni-C 数据生成支架水平的组装。黑鲍参考基因组将是理解该物种进化历史的重要资源，也是探索其当前遗传多样性水平以及制定未来管理和恢复计划的重要资源。
