Kanzaki Natsumi, Herrmann Matthias, Weiler Christian, Röseler Waltraud, Theska Tobias, Berger Jürgen, Rödelsperger Christian, Sommer Ralf J
Kansai Research Center, Forestry and Forest Products Research Institute, Kyoto 612-0855, Japan..
Zootaxa. 2021 Mar 17;4943(1):zootaxa.4943.1.1. doi: 10.11646/zootaxa.4943.1.1.
The model organism Pristionchus pacificus and the genus Pristionchus, Kreis, 1932 have been intensively studied in the last decade with contemporary work focusing on the development, evolution, ecology, behavior, neurobiology, and genomics of this group of organisms. In particular, mechanistic studies on the development and evolution of mouth-form plasticity, predation and associated self-recognition processes enabled unique insight into life history strategies and the evolution of novelty. These studies include a comparative research agenda making use of the 39 available species of Pristionchus, all of which can be studied in living cultures. Sampling efforts revealed that Asia represents a biodiversity hotspot for Pristionchus worms. However, previous samplings have a bias towards northern and island areas, largely for logistic reasons. Here, we report on two extensive sampling trips to the Yunnan and Shaanxi provinces in Mainland China. We report the isolation of nine new Pristionchus species by morphology, morphometrics, mating experiments and genome-wide sequence analysis.
模式生物太平洋小杆线虫以及小杆线虫属（Kreis，1932年）在过去十年中得到了深入研究，当代研究工作聚焦于这类生物的发育、进化、生态、行为、神经生物学和基因组学。特别是，关于口器形态可塑性的发育与进化、捕食及相关自我识别过程的机制研究，为深入了解生活史策略和新特征的进化提供了独特视角。这些研究包括一项比较研究议程，利用了39种现有的小杆线虫物种，所有这些物种都可以在活体培养中进行研究。抽样工作表明，亚洲是小杆线虫的生物多样性热点地区。然而，由于后勤方面的原因，之前的抽样主要集中在北部和岛屿地区，存在偏差。在此，我们报告了在中国内地云南省和陕西省进行的两次广泛抽样考察。我们通过形态学、形态测量学、交配实验和全基因组序列分析，报告了9个新的小杆线虫物种的分离情况。
