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Volume 14
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10.3390/d14070512
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Article

Narrow-Headed Voles Species Complex (Cricetidae, Rodentia): Evidence for Species Differentiation Inferred from Transcriptome Data

by
Tatyana Petrova
1,*,
Maria Skazina
2,3,
Aleksander Kuksin
4,
Olga Bondareva
1,3 and
Natalia Abramson
1,*
1
Laboratory of Evolutionary Genomics and Paleogenomics, Zoological Institute RAS, 199034 Saint Petersburg, Russia
2
Department of Applied Ecology, Biological Faculty, Saint-Petersburg State University, 199034 Saint Petersburg, Russia
3
Bioinformatics Institute, 197342 Saint Petersburg, Russia
4
Tuvinian Institute for Exploration of Natural Resources of Siberian Branch of the Russian Academy of Sciences, 667007 Kyzyl, Russia
*
Authors to whom correspondence should be addressed.
Diversity 2022, 14(7), 512; https://doi.org/10.3390/d14070512
Submission received: 3 June 2022 / Revised: 23 June 2022 / Accepted: 23 June 2022 / Published: 24 June 2022
(This article belongs to the Special Issue Phylogeny and Phylogeography of the Holarctic)
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Abstract

The narrow-headed vole complex includes two cryptic species, Lasiopodomys raddei and L. gregalis, and three allopatrically-distributed lineages with obscure taxonomic ranks within the latter. Based on the RNA-seq data of 12 specimens, the current study aims to find the molecular mechanisms of intraspecies differentiation and, in particular, reproductive isolation between analyzed groups. According to the results of the GO-enrichment analysis, about a hundred biological processes associated with genes with contrasting SNPs for L. gregalis and L. raddei were identified. Among them, processes of interspecific interactions, defense responses, responses to external stimuli, and the perception of chemical stimuli and smell were identified, indicating the likely existence of pre-copulatory behavioral and physiological mechanisms that contribute to reproductive isolation between cryptic species. An evaluation of the ratio of non-synonymous substitutions to synonymous ones showed evidence of selection in L. raddei compared to L. gregalis for a large part of the analyzed genes. Among the analyzed genes, genes with both weakening and intensifying selection were found.
Keywords: RNA-seq; transcriptome; SNP; speciation; reproductive isolation; selective pressure; Stenocranius; Lasiopodomys gregalis; Lasiopodomys raddei RNA-seq; transcriptome; SNP; speciation; reproductive isolation; selective pressure; Stenocranius; Lasiopodomys gregalis; Lasiopodomys raddei

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MDPI and ACS Style

Petrova, T.; Skazina, M.; Kuksin, A.; Bondareva, O.; Abramson, N. Narrow-Headed Voles Species Complex (Cricetidae, Rodentia): Evidence for Species Differentiation Inferred from Transcriptome Data. Diversity 2022, 14, 512. https://doi.org/10.3390/d14070512

AMA Style

Petrova T, Skazina M, Kuksin A, Bondareva O, Abramson N. Narrow-Headed Voles Species Complex (Cricetidae, Rodentia): Evidence for Species Differentiation Inferred from Transcriptome Data. Diversity. 2022; 14(7):512. https://doi.org/10.3390/d14070512

Chicago/Turabian Style

Petrova, Tatyana, Maria Skazina, Aleksander Kuksin, Olga Bondareva, and Natalia Abramson. 2022. "Narrow-Headed Voles Species Complex (Cricetidae, Rodentia): Evidence for Species Differentiation Inferred from Transcriptome Data" Diversity 14, no. 7: 512. https://doi.org/10.3390/d14070512

APA Style

Petrova, T., Skazina, M., Kuksin, A., Bondareva, O., & Abramson, N. (2022). Narrow-Headed Voles Species Complex (Cricetidae, Rodentia): Evidence for Species Differentiation Inferred from Transcriptome Data. Diversity, 14(7), 512. https://doi.org/10.3390/d14070512

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