Xidong Mu1, Yexin Yang1, Yi Liu1, Du Luo1, Meng Xu1, Hui Wei1, Dangen Gu1, Hongmei Song1, Yinchang Hu2. 1. Key Laboratory of Tropical&Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Xingyu Road1, Guangzhou, 510380, China. 2. Key Laboratory of Tropical&Subtropical Fishery Resource Application & Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Xingyu Road1, Guangzhou, 510380, China. huyc22@163.com.
The authors are retracting this article [1]. A reader recently raised questions related to the identification of one of the snail species whose complete mitochondrial (mt) genomes have been characterised in our article, because the gene order and mt genome sequence of the sample of Radix swinhoei (family Lymnaeidae) strongly resemble those of Physella acuta (family Physidae) (GenBank JQ390525.1 and JQ390526.1) published by Nolan et al. [2].The initial morphology-based identification of the snail as “Radix swinhoei” was not tested with BLAST searches and as a result we did not realise that we had characterised the mitochondrial genome of a different species. Upon re-examination of our data, we suggest that the sample “Radix swinhoei” does in fact represent a species of Physella (referred to as Physella sp.). Because of this misidentification and the fact that the phylogenetic analysis did not include members of the family Physidae, the conclusions drawn from the “Radix swinhoei” sample in our article are incorrect.All authors agree with this retraction.