Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA, United States.
Howard Hughes Medical Institute, University of California, Santa Cruz, CA, United States.
J Hered. 2024 Aug 20;115(5):498-506. doi: 10.1093/jhered/esae037.
The American black bear, Ursus americanus, is a widespread and ecologically important species in North America. In California, the black bear plays an important role in a variety of ecosystems and serves as an important species for recreational hunting. While research suggests that the populations in California are currently healthy, continued monitoring is critical, with genomic analyses providing an important surveillance tool. Here we report a high-quality, near chromosome-level genome assembly from a U. americanus sample from California. The primary assembly has a total length of 2.5 Gb contained in 316 scaffolds, a contig N50 of 58.9 Mb, a scaffold N50 of 67.6 Mb, and a BUSCO completeness score of 96%. This U. americanus genome assembly will provide an important resource for the targeted management of black bear populations in California, with the goal of achieving an appropriate balance between the recreational value of black bears and the maintenance of viable populations. The high quality of this genome assembly will also make it a valuable resource for comparative genomic analyses among black bear populations and among bear species.
美洲黑熊，Ursus americanus，是北美的一个广泛分布且具有重要生态意义的物种。在加利福尼亚州，黑熊在多种生态系统中扮演着重要的角色，也是娱乐性狩猎的重要物种。尽管研究表明加利福尼亚州的黑熊种群目前健康状况良好，但持续监测至关重要，基因组分析提供了一个重要的监测工具。在这里，我们报告了来自加利福尼亚州的美洲黑熊样本的高质量、接近染色体水平的基因组组装。主要组装的总长度为 25 亿碱基对，包含 316 个支架，连续体 N50 为 5890 万碱基对，支架 N50 为 6760 万碱基对，BUSCO 完整性评分为 96%。这个美洲黑熊基因组组装将为加利福尼亚州黑熊种群的靶向管理提供重要资源，目标是在黑熊的娱乐价值和维持有活力的种群之间实现适当的平衡。该基因组组装的高质量也将使其成为黑熊种群和熊科物种之间比较基因组分析的宝贵资源。
