Xu Wang, Chen Anhui, Xia Rong, Fu Cuizhang
Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, and Institute of Biodiversity Science, Fudan University , Shanghai 200433 , China.
Mitochondrial DNA. 2014 Oct;25(5):379-80. doi: 10.3109/19401736.2013.809432. Epub 2013 Jul 8.
Rhynchocypris lagowskii sensu lato (Cypriniformes: Cyprinidae) has been revealed as a species complex including two species, i.e. R. lagowskii sensu stricto and a cryptic species R. cf. lagowskii. We determined the first complete mitochondrial genome (mitogenome) of R. cf. lagowskii by comparing with a published mitogenome of R. lagowskii sensu stricto. The two species displayed similar pattern of mitochondrial gene arrangements and similar base compositions of the heavy strain with a bias in the A+T content. There were the nucleotide sequence similarity of 91.8% for mitogenomes and pairwise p-distance of 6.9% for COI genes between R. cf. lagowskii and R. lagowskii sensu stricto and these results supported the two species as different species.
广义拉氏高原鳅（鲤形目：鲤科）已被揭示为一个物种复合体，包括两个物种，即狭义拉氏高原鳅和一个隐存物种——疑似拉氏高原鳅。通过与已发表的狭义拉氏高原鳅线粒体基因组进行比较，我们测定了疑似拉氏高原鳅的首个完整线粒体基因组。这两个物种的线粒体基因排列模式相似，重链的碱基组成也相似，且A+T含量存在偏向性。疑似拉氏高原鳅和狭义拉氏高原鳅的线粒体基因组核苷酸序列相似度为91.8%，COI基因的成对p距离为6.9%，这些结果支持这两个物种为不同物种。
