Abstract
Amphibians are experiencing worldwide declines due to increasing anthropogenetic disturbances. However, the genetic variability and hence adaptability are still unknown for most frogs. We integrated the mitochondrial (ND2 gene), nuclear (TYR gene) and major histocompatibility complex (MHC) loci, to clarify the demographic patterns and immune-gene diversity of the Lolokou Sucker Frog (Amolops loloensis). Demographic analysis of the ND2 and TYR genes suggested that the Lolokou Sucker Frog experienced a population expansion within the last 10,000 years. High MHC diversity was detected, which has likely resulted from positive selection, indicating the current diversity bodes well for the species’ adaptive potential to pathogenic challenges. These findings broaden our knowledge on the population history and evolution adaptation of the reclusive torrent frog, and conservation implications are provided.
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Acknowledgements
This work was supported by Resources Survey and Monitoring Project of Mabian Dafengding National Nature Reserve (201402024-274). Great thanks to passed away professor Zhihua Guo for his support for the work, and this work was specially in memory of him who contributed all his life in pursuing the truth. We also thank Dr. Elen Peres for providing valuable comments on data processing.
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Nucleotide sequence accession numbers
Nucleotide sequences for the new identifications, characterizations, and sequences in this article have been deposited in GenBank. ND2: KY357476 - KY357479, TYR: KY357480 - KY357486, MHC II DRB exon 2: KY438976 - KY438987.
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Gong, M., Shafer, A.B.A., Hu, X. et al. Population demographic history and adaptability of the vulnerable Lolokou Sucker Frog. Genetica 148, 207–213 (2020). https://doi.org/10.1007/s10709-020-00105-3
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DOI: https://doi.org/10.1007/s10709-020-00105-3