Institute of Zoology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China.
College of Life Sciences, University of Chinese Academy of Sciences, Huairou District, Beijing, 101408, China.
Sci Data. 2024 Sep 27;11(1):1041. doi: 10.1038/s41597-024-03905-w.
Pygmy jerboas are one of the smallest taxa of rodents. They exhibit distinctly different morphological and biological characteristics from other subfamilies, such as more restricted distribution, species richness, reproductive ability, and population size. Agricultural expansion and the development of new energy projects in recent years lead to sharp decline of their natural populations. Here, we assembled and annotated the first reference genome for the subfamily Cardiocraniinae using Illunima and Nanopore sequencing from the thick-tailed pygmy jerboa, Salpingotus crassicauda. The final genome is 2.44 Gb in size, with a contig N50 length of 13.71 Mb and a BUSCO completeness of 96.35%. A total of 23,344 protein-coding genes were annotated in the final genome. We also determined the mitochondrial genome of this species and annotated 13 protein-coding genes, 22 tRNAs, and 2 rRNA. These genomic assemblies provide resources in studying phylogeny and adaptive evolution of Dipodidae, as well as implementing conservation management of jerboas.
小家鼠是最小的啮齿动物之一。它们表现出与其他亚科明显不同的形态和生物学特征，例如分布范围更有限、物种丰富度、繁殖能力和种群规模。近年来，农业扩张和新能源项目的发展导致它们的自然种群数量急剧下降。在这里，我们使用 Illunima 和 Nanopore 测序从小家鼠亚科的厚尾小家鼠 Salpingotus crassicauda 中组装和注释了第一个参考基因组。最终基因组大小为 2.44Gb，串联 N50 长度为 13.71Mb，BUSCO 完整性为 96.35%。最终基因组共注释了 23344 个蛋白质编码基因。我们还确定了该物种的线粒体基因组，并注释了 13 个蛋白质编码基因、22 个 tRNA 和 2 个 rRNA。这些基因组组装为研究跳鼠科的系统发育和适应性进化以及实施跳鼠保护管理提供了资源。
