Enigmatic incongruence between mtDNA and nDNA revealed by multi-locus phylogenomic analyses in freshwater snails.

Authors:
Takahiro Hirano
Takahiro Hirano
Kyoto University
Japan
Takumi Saito
Takumi Saito
The University of Tokyo
Japan
Joichiro Koseki
Joichiro Koseki
Graduate school of Life Sciences
Bin Ye
Bin Ye
Brigham and Women's Hospital
United States
Van Tu Do
Van Tu Do
Institute of Ecology and Biological Resources (IEBR)
Osamu Miura
Osamu Miura
Graduate School of Medical and Dental Sciences
Cleveland | United States
Yoshihisa Suyama
Yoshihisa Suyama
Tohoku University
Japan

Sci Rep 2019 Apr 17;9(1):6223. Epub 2019 Apr 17.

Graduate school of Life Sciences, Tohoku University, Miyagi, Japan.

Phylogenetic incongruence has frequently been encountered among different molecular markers. Recent progress in molecular phylogenomics has provided detailed and important information for evolutionary biology and taxonomy. Here we focused on the freshwater viviparid snails (Cipangopaludina chinensis chinensis and C. c. laeta) of East Asia. We conducted phylogenetic analyses and divergence time estimation using two mitochondrial markers. We also performed population genetic analyses using genome-wide SNPs. We investigated how and which phylogenetic patterns reflect shell morphology. The results showed these two species could be separated into four major mitochondrial clades, whereas the nuclear clusters supported two groups. The phylogenetic patterns of both mtDNA and nDNA largely reflected the geographical distribution. Shell morphology reflected the phylogenetic clusters based on nDNA. The findings also showed these two species diversified in the Pliocene to early Pleistocene era, and occurred introgressive hybridisation. The results also raise the taxonomic issue of the two species.

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Source
http://www.nature.com/articles/s41598-019-42682-0
Publisher Site
http://dx.doi.org/10.1038/s41598-019-42682-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6470147PMC
April 2019
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