Recuero Ernesto, Caterino Michael S
Department of Plant & Environmental Sciences, 277 Poole Agricultural Center, Clemson University, Clemson, SC 29634-0310, USA Clemson University Clemson United States of America.
Zookeys. 2023 Jun 13;1166:333-349. doi: 10.3897/zookeys.1166.103516. eCollection 2023.
We describe a second species of Wesener, 2012, a genus of pill millipede endemic to the southern Appalachians, based on morphological and molecular evidence. The fauna of Glomerida in America is characterized by its low diversity, and is only the fifth species of the order known from the eastern United States. Our phylogenetic analyses based on COI sequences recover a tentatively monophyletic lineage including both eastern American genera Cook, 1896 and , with a common ancestor in the Late Cretaceous to Mid Eocene and extant diversity within genera dating back to the Miocene. Our results suggest that the observed low diversity of the group in the eastern US is likely caused by extinction events, but it is also possible that new species are yet to be found. We provide new records for Wesener, 2012, Cook, 1896 and Hoffman, 1950; the latter is here reported for the first time from South Carolina. We also present DNA barcoding data for all species of Glomerida present in the US that are not yet publicly available.
基于形态学和分子证据，我们描述了韦氏马陆属（Wesener，2012）的第二个物种，该属是阿巴拉契亚山脉南部特有的千足虫属。美洲球马陆目（Glomerida）的动物群以其低多样性为特征，并且是已知来自美国东部的该目第五个物种。我们基于细胞色素氧化酶亚基I（COI）序列的系统发育分析恢复了一个初步的单系谱系，包括美国东部的库克马陆属（Cook，1896）和另一属，其共同祖先可追溯到晚白垩世至始新世中期，而各属内的现存多样性则可追溯到中新世。我们的结果表明，在美国东部观察到的该类群的低多样性可能是由灭绝事件导致的，但也有可能尚未发现新物种。我们提供了韦氏马陆属（Wesener，2012）、库克马陆属（Cook，1896）和霍夫曼马陆属（Hoffman，1950）的新记录；后者首次在南卡罗来纳州被报道。我们还展示了美国现存的所有尚未公开的球马陆目物种的DNA条形码数据。
