Oceguera-Figueroa Alejandro, León-Règagnon Virginia, Siddall Mark E
Department of Biology, The Graduate Center, The City University of New York, New York, NY, USA.
Mitochondrial DNA. 2010 Dec;21 Suppl 1:24-9. doi: 10.3109/19401736.2010.527965.
We investigated the genetic distances and taxonomic status among species of Helobdella, a genus of non-blood-feeding leeches, based on mitochondrial cytochrome c oxidase subunit I sequences. Sampling included 20 specimens representing nine nominal species collected in 11 states in Mexico as well as previously published sequences of different species of Helobdella from several places. A neighbor-joining tree, as well as identification of diagnostic nucleotides, was used to suggest the presence of seven species of Helobdella in Mexico including potentially two undescribed forms.
我们基于线粒体细胞色素c氧化酶亚基I序列，研究了非吸血水蛭属——蛭蚓属物种之间的遗传距离和分类地位。采样包括代表墨西哥11个州采集的9个标称物种的20个标本，以及此前发表的来自多个地方的不同蛭蚓属物种的序列。利用邻接法树以及诊断性核苷酸的鉴定，表明墨西哥存在7种蛭蚓属物种，其中可能包括两种未描述的形态。
