Comments on species divergence in the genus Sphaerium (Bivalvia) and phylogenetic affinities of Sphaerium nucleus and S. corneum var. mamillanum based on karyotypes and sequences of 16S and ITS1 rDNA

• Romualda Petkevičiūtė ,

  Contributed equally to this work with: Romualda Petkevičiūtė, Virmantas Stunžėnas, Gražina Stanevičiūtė

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Writing – original draft, Writing – review & editing

  * E-mail: romualda@ekoi.lt

  Affiliation P. B. Šivickis Laboratory of Parasitology, Nature Research Centre, Vilnius, Lithuania

  http://orcid.org/0000-0001-8386-1938

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• Virmantas Stunžėnas ,

  Contributed equally to this work with: Romualda Petkevičiūtė, Virmantas Stunžėnas, Gražina Stanevičiūtė

  Roles Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Writing – original draft, Writing – review & editing

  Affiliation P. B. Šivickis Laboratory of Parasitology, Nature Research Centre, Vilnius, Lithuania

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• Gražina Stanevičiūtė

  Contributed equally to this work with: Romualda Petkevičiūtė, Virmantas Stunžėnas, Gražina Stanevičiūtė

  Roles Data curation, Investigation, Resources, Writing – original draft, Writing – review & editing

  Affiliation P. B. Šivickis Laboratory of Parasitology, Nature Research Centre, Vilnius, Lithuania

  ⨯