Edwards Cody W, Bradley Robert D
Department of Biological Sciences, Texas Tech University, Lubbock 79409-3131, USA.
Mol Phylogenet Evol. 2002 Dec;25(3):489-500. doi: 10.1016/s1055-7903(02)00294-4.
DNA sequences from the mitochondrial DNA cytochrome-b gene were used to infer the systematic relationships of 13 species of wood rats (genus Neotoma). Parsimony, likelihood, and neighbor-joining analyses produced similar topologies in most cases and produced six systematic conclusions. First, results of previous studies were supported in the recognition of N. floridana magister as distinct species (N. magister). Second, evidence was provided for the recognition of cryptic species within N. albigula (N. albigula and N. leucodon) and N. mexicana (N. mexicana, N. isthmica, and N. picta). Third, the subgenus Neotoma is composed of four species groups (floridana, lepida, mexicana, and micropus). Fourth, support was provided for placement of N. stephensi within the lepida species group. Fifth, support was provided for the recognition of Hodomys as a separate genus, sister to Xenomys. Sixth, support for the elevation of the subgenus Teonoma to generic status is discussed.
线粒体DNA细胞色素b基因的DNA序列被用于推断13种林鼠（林鼠属）的系统发育关系。在大多数情况下，简约法、似然法和邻接法分析产生了相似的拓扑结构，并得出了六个系统发育结论。第一，先前研究的结果支持将佛罗里达林鼠指名亚种确认为一个独立物种（马吉林鼠）。第二，有证据支持在白喉林鼠（白喉林鼠和白齿林鼠）和墨西哥林鼠（墨西哥林鼠、地峡林鼠和花斑林鼠）中识别隐存物种。第三，林鼠亚属由四个物种组组成（佛罗里达组、鳞甲组、墨西哥组和小足组）。第四，支持将斯蒂芬斯林鼠归入鳞甲物种组。第五，支持将霍多鼠属确认为一个独立的属，是异鼠属的姐妹属。第六，讨论了支持将特奥诺马亚属提升为属级地位的证据。
