0000000001301356
AUTHOR
Luis J. Chueca
Whole-Genome Re-Sequencing Data to Infer Historical Demography and Speciation Processes in Land Snails: the Study of Two Candidula Sister Species
Despite the global biodiversity of terrestrial gastropods and their ecological and economic importance, the genomic basis of ecological adaptation and speciation in land snail taxa is still largely unknown. Here, we combined whole-genome re-sequencing with population genomics to evaluate the historical demography and the speciation process of two closely related species of land snails from western Europe, Candidula unifasciata and C. rugosiuscula. Historical demographic analysis indicated fluctuations in the size of ancestral populations, probably driven by Pleistocene climatic fluctuations. Although the current population distributions of both species do not overlap, our approximate Bayesi…
De novogenome assembly of the land snailCandidula unifasciata(Mollusca: Gastropoda)
AbstractAmong all molluscs, land snails are an economically and scientifically interesting group comprising edible species, alien species and agricultural pests. Yet, despite its high diversity, the number of whole genomes publicly available is still scarce. Here, we present the draft genome assembly of the land snailCandidula unifasciata, a widely distributed species along central Europe, which belongs to Geomitridae family, a group highly diversified in the Western-Palearctic region. We performed a whole genome sequencing, assembly and annotation of an adult specimen based on PacBio and Oxford Nanopore long read sequences as well as Illumina data. A genome of about 1.29 Gb was generated w…
De novo genome assembly of the land snail Candidula unifasciata (Mollusca: Gastropoda)
Abstract Among all molluscs, land snails are a scientifically and economically interesting group comprising edible species, alien species and agricultural pests. Yet, despite their high diversity, the number of genome drafts publicly available is still scarce. Here, we present the draft genome assembly of the land snail Candidula unifasciata, a widely distributed species along central Europe, belonging to the Geomitridae family, a highly diversified taxon in the Western-Palearctic region. We performed whole genome sequencing, assembly and annotation of an adult specimen based on PacBio and Oxford Nanopore long read sequences as well as Illumina data. A genome draft of about 1.29 Gb was gene…
The era of reference genomes in conservation genomics
Progress in genome sequencing now enables the large-scale generation of reference genomes. Various international initiatives aim to generate reference genomes representing global biodiversity. These genomes provide unique insights into genomic diversity and architecture, thereby enabling comprehensive analyses of population and functional genomics, and are expected to revolutionize conservation genomics.
De Novo Genome Assembly of the Raccoon Dog (Nyctereutes Procyonoides)
The raccoon dog, Nyctereutes procyonoides (NCBI Taxonomy ID: 34880, Figure 1a) belongs to the family Canidae, with foxes (genus Vulpes) being their closest relatives (Lindblad-Toh et al., 2005; Sun et al., 2019). Its original distribution in East Asia ranges from south-eastern Siberia to northern Vietnam and the Japanese islands. In the early 20th century, the raccoon dog was introduced into Western Russia for fur breeding and hunting purposes, which led to its widespread establishment in many European countries, Figure 1b. Together with the raccoon (Procyon lotor), it is now listed in Europe as an invasive species of Union concern (Regulation (EU) No. 1143/2014) and member states are requi…
Extended material and methods from Whole-genome re-sequencing data to infer historical demography and speciation processes in land snails: the study of two Candidula sister species
Despite the global biodiversity of terrestrial gastropods and their ecological and economic importance, the genomic basis of ecological adaptation and speciation in land snail taxa is still largely unknown. Here, we combined whole-genome re-sequencing with population genomics to evaluate the historical demography and the speciation process of two closely related species of land snails from western Europe, Candidula unifasciata and C. rugosiuscula. Historical demographic analysis indicated fluctuations in the size of ancestral populations, probably driven by Pleistocene climatic fluctuations. Although the current population distributions of both species do not overlap, our approximate Bayesi…
Table S2. from Whole-genome re-sequencing data to infer historical demography and speciation processes in land snails: the study of two Candidula sister species
Genes identified in MKT test as positively selected. Given are their UniProt ID, gene names, a short functional description, their potential role in speciation and a respective citation where available. Roles in speciation are colour coded for intragenomic molecular compatibility (green), reproductive compatibility (orange) and ecological adaptation (blue). Genes that could not be specifically linked with either of these processes are highlighted in grey
Table S1: from Whole-genome re-sequencing data to infer historical demography and speciation processes in land snails: the study of two Candidula sister species
Sampling localities and voucher numbers of specimens used for this study
Table S3. from Whole-genome re-sequencing data to infer historical demography and speciation processes in land snails: the study of two Candidula sister species
Gene Ontology (GO) term enrichment analysis for the genes within early diverged windows (Wearly). Significantly (P < 0.05) overrepresented GO terms in the category biological process (BP). Probability values for the number of observed genes being within random expectations are based on the weight Fisher algorithm